<?xml version="1.0" encoding="US-ASCII"?>
<!--XBRL Document Created with Wdesk from Workiva-->
<!-- -->
<link:linkbase xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <link:roleRef roleURI="http://www.dropbox.com/role/AccruedAndOtherCurrentLiabilities" xlink:href="dbx-20181231.xsd#AccruedAndOtherCurrentLiabilities" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/AccruedAndOtherCurrentLiabilitiesDetails" xlink:href="dbx-20181231.xsd#AccruedAndOtherCurrentLiabilitiesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/AccruedAndOtherCurrentLiabilitiesTables" xlink:href="dbx-20181231.xsd#AccruedAndOtherCurrentLiabilitiesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/BusinessCombinations" xlink:href="dbx-20181231.xsd#BusinessCombinations" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/CashCashEquivalentsAndShortTermInvestments" xlink:href="dbx-20181231.xsd#CashCashEquivalentsAndShortTermInvestments" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/CashCashEquivalentsAndShortTermInvestmentsContractualMaturitiesOfShortTermInvestmentsDetails" xlink:href="dbx-20181231.xsd#CashCashEquivalentsAndShortTermInvestmentsContractualMaturitiesOfShortTermInvestmentsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/CashCashEquivalentsAndShortTermInvestmentsNarrativeDetails" xlink:href="dbx-20181231.xsd#CashCashEquivalentsAndShortTermInvestmentsNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/CashCashEquivalentsAndShortTermInvestmentsScheduleOfCashCashEquivalentsAndShortTermInvestmentsDetails" xlink:href="dbx-20181231.xsd#CashCashEquivalentsAndShortTermInvestmentsScheduleOfCashCashEquivalentsAndShortTermInvestmentsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/CashCashEquivalentsAndShortTermInvestmentsShortTermInvestmentsInUnrealizedLossPositionsDetails" xlink:href="dbx-20181231.xsd#CashCashEquivalentsAndShortTermInvestmentsShortTermInvestmentsInUnrealizedLossPositionsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/CashCashEquivalentsAndShortTermInvestmentsTables" xlink:href="dbx-20181231.xsd#CashCashEquivalentsAndShortTermInvestmentsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/CommitmentsAndContingencies" xlink:href="dbx-20181231.xsd#CommitmentsAndContingencies" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/CommitmentsAndContingenciesNarrativeDetails" xlink:href="dbx-20181231.xsd#CommitmentsAndContingenciesNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/CommitmentsAndContingenciesScheduleOfFutureMinimumPaymentsDetails" xlink:href="dbx-20181231.xsd#CommitmentsAndContingenciesScheduleOfFutureMinimumPaymentsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/CommitmentsAndContingenciesTables" xlink:href="dbx-20181231.xsd#CommitmentsAndContingenciesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/ConsolidatedBalanceSheets" xlink:href="dbx-20181231.xsd#ConsolidatedBalanceSheets" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/ConsolidatedBalanceSheetsParenthetical" xlink:href="dbx-20181231.xsd#ConsolidatedBalanceSheetsParenthetical" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/ConsolidatedStatementsOfCashFlows" xlink:href="dbx-20181231.xsd#ConsolidatedStatementsOfCashFlows" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/ConsolidatedStatementsOfComprehensiveLoss" xlink:href="dbx-20181231.xsd#ConsolidatedStatementsOfComprehensiveLoss" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/ConsolidatedStatementsOfOperations" xlink:href="dbx-20181231.xsd#ConsolidatedStatementsOfOperations" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/ConsolidatedStatementsOfOperationsParenthetical" xlink:href="dbx-20181231.xsd#ConsolidatedStatementsOfOperationsParenthetical" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/ConsolidatedStatementsOfStockholdersEquity" xlink:href="dbx-20181231.xsd#ConsolidatedStatementsOfStockholdersEquity" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/DescriptionOfBusinessAndSummaryOfSignificantAccountingPolicies" xlink:href="dbx-20181231.xsd#DescriptionOfBusinessAndSummaryOfSignificantAccountingPolicies" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesAdvertisingAndPromotionalExpenseDetails" xlink:href="dbx-20181231.xsd#DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesAdvertisingAndPromotionalExpenseDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesConcentrationsOfCreditRiskDetails" xlink:href="dbx-20181231.xsd#DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesConcentrationsOfCreditRiskDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesDeferredCommissionsNetDetails" xlink:href="dbx-20181231.xsd#DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesDeferredCommissionsNetDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesDeferredOfferingCostsDetails" xlink:href="dbx-20181231.xsd#DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesDeferredOfferingCostsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesForeignCurrencyTransactionsDetails" xlink:href="dbx-20181231.xsd#DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesForeignCurrencyTransactionsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesInitialPublicOfferingAndPrivatePlacementDetails" xlink:href="dbx-20181231.xsd#DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesInitialPublicOfferingAndPrivatePlacementDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesInternalUseSoftwareDetails" xlink:href="dbx-20181231.xsd#DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesInternalUseSoftwareDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesLeaseObligationsDetails" xlink:href="dbx-20181231.xsd#DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesLeaseObligationsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesNonTradeReceivablesDetails" xlink:href="dbx-20181231.xsd#DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesNonTradeReceivablesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesPolicies" xlink:href="dbx-20181231.xsd#DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesPolicies" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesPropertyAndEquipmentNetDetails" xlink:href="dbx-20181231.xsd#DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesPropertyAndEquipmentNetDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesRevenueRecognitionDetails" xlink:href="dbx-20181231.xsd#DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesRevenueRecognitionDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesStockBasedCompensationDetails" xlink:href="dbx-20181231.xsd#DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesStockBasedCompensationDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesTables" xlink:href="dbx-20181231.xsd#DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesTradeAndOtherReceivablesNetDetails" xlink:href="dbx-20181231.xsd#DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesTradeAndOtherReceivablesNetDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/DocumentAndEntityInformation" xlink:href="dbx-20181231.xsd#DocumentAndEntityInformation" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/FairValueMeasurements" xlink:href="dbx-20181231.xsd#FairValueMeasurements" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/FairValueMeasurementsDetails" xlink:href="dbx-20181231.xsd#FairValueMeasurementsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/FairValueMeasurementsTables" xlink:href="dbx-20181231.xsd#FairValueMeasurementsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/GeographicAreas" xlink:href="dbx-20181231.xsd#GeographicAreas" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/GeographicAreasDetails" xlink:href="dbx-20181231.xsd#GeographicAreasDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/GeographicAreasTables" xlink:href="dbx-20181231.xsd#GeographicAreasTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/Goodwill" xlink:href="dbx-20181231.xsd#Goodwill" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/GoodwillDetails" xlink:href="dbx-20181231.xsd#GoodwillDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/GoodwillTables" xlink:href="dbx-20181231.xsd#GoodwillTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/IncomeTaxes" xlink:href="dbx-20181231.xsd#IncomeTaxes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/IncomeTaxesComponentsOfDeferredTaxAssetsAndDeferredTaxLiabilitiesDetails" xlink:href="dbx-20181231.xsd#IncomeTaxesComponentsOfDeferredTaxAssetsAndDeferredTaxLiabilitiesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/IncomeTaxesComponentsOfIncomeTaxExpenseBenefitDetails" xlink:href="dbx-20181231.xsd#IncomeTaxesComponentsOfIncomeTaxExpenseBenefitDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/IncomeTaxesIncomeTaxRateReconciliationDetails" xlink:href="dbx-20181231.xsd#IncomeTaxesIncomeTaxRateReconciliationDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/IncomeTaxesNarrativeDetails" xlink:href="dbx-20181231.xsd#IncomeTaxesNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/IncomeTaxesReconciliationOfUnrecognizedTaxBenefitsDetails" xlink:href="dbx-20181231.xsd#IncomeTaxesReconciliationOfUnrecognizedTaxBenefitsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/IncomeTaxesScheduleOfLossFromContinuingOperationsBeforeIncomeTaxesDetails" xlink:href="dbx-20181231.xsd#IncomeTaxesScheduleOfLossFromContinuingOperationsBeforeIncomeTaxesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/IncomeTaxesTables" xlink:href="dbx-20181231.xsd#IncomeTaxesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/IntangibleAssetsNet" xlink:href="dbx-20181231.xsd#IntangibleAssetsNet" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/IntangibleAssetsNetScheduleOfFutureAmortizationExpenseDetails" xlink:href="dbx-20181231.xsd#IntangibleAssetsNetScheduleOfFutureAmortizationExpenseDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/IntangibleAssetsNetScheduleOfIntangibleAssetsDetails" xlink:href="dbx-20181231.xsd#IntangibleAssetsNetScheduleOfIntangibleAssetsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/IntangibleAssetsNetTables" xlink:href="dbx-20181231.xsd#IntangibleAssetsNetTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/NetLossPerShare" xlink:href="dbx-20181231.xsd#NetLossPerShare" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/NetLossPerShareScheduleOfEarningsPerShareBasicAndDilutedDetails" xlink:href="dbx-20181231.xsd#NetLossPerShareScheduleOfEarningsPerShareBasicAndDilutedDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/NetLossPerShareScheduleOfPotentiallyDilutiveSecuritiesExcludedFromComputationOfEarningsPerShareDetails" xlink:href="dbx-20181231.xsd#NetLossPerShareScheduleOfPotentiallyDilutiveSecuritiesExcludedFromComputationOfEarningsPerShareDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/NetLossPerShareTables" xlink:href="dbx-20181231.xsd#NetLossPerShareTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/PropertyAndEquipmentNet" xlink:href="dbx-20181231.xsd#PropertyAndEquipmentNet" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/PropertyAndEquipmentNetNarrativeDetails" xlink:href="dbx-20181231.xsd#PropertyAndEquipmentNetNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/PropertyAndEquipmentNetScheduleOfPropertyAndEquipmentNetDetails" xlink:href="dbx-20181231.xsd#PropertyAndEquipmentNetScheduleOfPropertyAndEquipmentNetDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/PropertyAndEquipmentNetTables" xlink:href="dbx-20181231.xsd#PropertyAndEquipmentNetTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/RelatedPartyTransactions" xlink:href="dbx-20181231.xsd#RelatedPartyTransactions" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/RelatedPartyTransactionsDetails" xlink:href="dbx-20181231.xsd#RelatedPartyTransactionsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/RevolvingCreditFacility" xlink:href="dbx-20181231.xsd#RevolvingCreditFacility" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/RevolvingCreditFacilityDetails" xlink:href="dbx-20181231.xsd#RevolvingCreditFacilityDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/StockholdersEquity" xlink:href="dbx-20181231.xsd#StockholdersEquity" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/StockholdersEquityAwardModificationsDetails" xlink:href="dbx-20181231.xsd#StockholdersEquityAwardModificationsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/StockholdersEquityCoFounderGrantsDetails" xlink:href="dbx-20181231.xsd#StockholdersEquityCoFounderGrantsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/StockholdersEquityCommonStockDetails" xlink:href="dbx-20181231.xsd#StockholdersEquityCommonStockDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/StockholdersEquityConvertiblePreferredStockAndPreferredStockDetails" xlink:href="dbx-20181231.xsd#StockholdersEquityConvertiblePreferredStockAndPreferredStockDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/StockholdersEquityEquityIncentivePlansDetails" xlink:href="dbx-20181231.xsd#StockholdersEquityEquityIncentivePlansDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/StockholdersEquityScheduleOfPreTaxIntrinsicValueDetails" xlink:href="dbx-20181231.xsd#StockholdersEquityScheduleOfPreTaxIntrinsicValueDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/StockholdersEquityScheduleOfStockOptionAndRestrictedStockActivityDetails" xlink:href="dbx-20181231.xsd#StockholdersEquityScheduleOfStockOptionAndRestrictedStockActivityDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/StockholdersEquityTables" xlink:href="dbx-20181231.xsd#StockholdersEquityTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/SubsequentEvents" xlink:href="dbx-20181231.xsd#SubsequentEvents" xlink:type="simple" />
  <link:roleRef roleURI="http://www.dropbox.com/role/SubsequentEventsDetails" xlink:href="dbx-20181231.xsd#SubsequentEventsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedNetLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedNetLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodEndLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodEndLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodStartLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodStartLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTerseLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTotalLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/netLabel" xlink:href="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd#netLabel" xlink:type="simple" />
  <link:presentationLink xlink:role="http://www.dropbox.com/role/AccruedAndOtherCurrentLiabilities" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PayablesAndAccrualsAbstract" xlink:label="loc_us-gaap_PayablesAndAccrualsAbstract_3B6A0C984DCE648576C707B8CFA1B80F" xlink:type="locator" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_AccruedLiabilitiesAndOtherLiabilitiesCurrentTextBlock" xlink:label="loc_dbx_AccruedLiabilitiesAndOtherLiabilitiesCurrentTextBlock_FC3B96A26F2215CBCFC907B8CFA19690" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PayablesAndAccrualsAbstract_3B6A0C984DCE648576C707B8CFA1B80F" xlink:to="loc_dbx_AccruedLiabilitiesAndOtherLiabilitiesCurrentTextBlock_FC3B96A26F2215CBCFC907B8CFA19690" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/AccruedAndOtherCurrentLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PayablesAndAccrualsAbstract" xlink:label="loc_us-gaap_PayablesAndAccrualsAbstract_51E7C2C86F660F9708E007B8CF9B4815" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrent" xlink:label="loc_us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrent_EC835C626DE59009568107B8CF9B168B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PayablesAndAccrualsAbstract_51E7C2C86F660F9708E007B8CF9B4815" xlink:to="loc_us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrent_EC835C626DE59009568107B8CF9B168B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccruedProfessionalFeesCurrent" xlink:label="loc_us-gaap_AccruedProfessionalFeesCurrent_FCF36D4E2CD59FA29B6907B8CF9B84F5" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PayablesAndAccrualsAbstract_51E7C2C86F660F9708E007B8CF9B4815" xlink:to="loc_us-gaap_AccruedProfessionalFeesCurrent_FCF36D4E2CD59FA29B6907B8CF9B84F5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccruedRentCurrent" xlink:label="loc_us-gaap_AccruedRentCurrent_148A95D7A2D13013C4F607B8CF9BB753" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PayablesAndAccrualsAbstract_51E7C2C86F660F9708E007B8CF9B4815" xlink:to="loc_us-gaap_AccruedRentCurrent_148A95D7A2D13013C4F607B8CF9BB753" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_FinancingObligationsCurrent" xlink:label="loc_dbx_FinancingObligationsCurrent_16223385FF9697582FED07B8CF9C005B" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PayablesAndAccrualsAbstract_51E7C2C86F660F9708E007B8CF9B4815" xlink:to="loc_dbx_FinancingObligationsCurrent_16223385FF9697582FED07B8CF9C005B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccruedIncomeTaxesCurrent" xlink:label="loc_us-gaap_AccruedIncomeTaxesCurrent_F0F494EF8A4DD8D20F7F07B8CF9CA5B7" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PayablesAndAccrualsAbstract_51E7C2C86F660F9708E007B8CF9B4815" xlink:to="loc_us-gaap_AccruedIncomeTaxesCurrent_F0F494EF8A4DD8D20F7F07B8CF9CA5B7" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_OtherAccruedLiabilitiesAndOtherLiabilitiesCurrent" xlink:label="loc_dbx_OtherAccruedLiabilitiesAndOtherLiabilitiesCurrent_FC52E612E89393F640F307B8CF9C56B3" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PayablesAndAccrualsAbstract_51E7C2C86F660F9708E007B8CF9B4815" xlink:to="loc_dbx_OtherAccruedLiabilitiesAndOtherLiabilitiesCurrent_FC52E612E89393F640F307B8CF9C56B3" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_AccruedLiabilitiesandOtherLiabilitiesCurrent" xlink:label="loc_dbx_AccruedLiabilitiesandOtherLiabilitiesCurrent_26DD624C71FCACB52B2007B8CF9C03F8" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PayablesAndAccrualsAbstract_51E7C2C86F660F9708E007B8CF9B4815" xlink:to="loc_dbx_AccruedLiabilitiesandOtherLiabilitiesCurrent_26DD624C71FCACB52B2007B8CF9C03F8" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/AccruedAndOtherCurrentLiabilitiesTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PayablesAndAccrualsAbstract" xlink:label="loc_us-gaap_PayablesAndAccrualsAbstract_A23272135B7323165E9D07B8CF9F9FB7" xlink:type="locator" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_ScheduleOfAccruedLiabilitiesAndOtherCurrentLiabilitiesTableTextBlock" xlink:label="loc_dbx_ScheduleOfAccruedLiabilitiesAndOtherCurrentLiabilitiesTableTextBlock_BECA7D8A5D6D306F597207B8CF9F6CB6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PayablesAndAccrualsAbstract_A23272135B7323165E9D07B8CF9F9FB7" xlink:to="loc_dbx_ScheduleOfAccruedLiabilitiesAndOtherCurrentLiabilitiesTableTextBlock_BECA7D8A5D6D306F597207B8CF9F6CB6" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/BusinessCombinations" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationsAbstract" xlink:label="loc_us-gaap_BusinessCombinationsAbstract_EFD53F9E93A429751EA907B8CFBD1C7D" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationDisclosureTextBlock" xlink:label="loc_us-gaap_BusinessCombinationDisclosureTextBlock_D36E97C39D9EF1DC994107B8CFBDAB15" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessCombinationsAbstract_EFD53F9E93A429751EA907B8CFBD1C7D" xlink:to="loc_us-gaap_BusinessCombinationDisclosureTextBlock_D36E97C39D9EF1DC994107B8CFBDAB15" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/CashCashEquivalentsAndShortTermInvestments" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashAndCashEquivalentsAbstract" xlink:label="loc_us-gaap_CashAndCashEquivalentsAbstract_97A887CD3BE57C1F950E07B8D006BCD7" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashCashEquivalentsAndShortTermInvestmentsTextBlock" xlink:label="loc_us-gaap_CashCashEquivalentsAndShortTermInvestmentsTextBlock_A88CBF97004E12445EAE07B8D0069F91" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsAbstract_97A887CD3BE57C1F950E07B8D006BCD7" xlink:to="loc_us-gaap_CashCashEquivalentsAndShortTermInvestmentsTextBlock_A88CBF97004E12445EAE07B8D0069F91" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/CashCashEquivalentsAndShortTermInvestmentsContractualMaturitiesOfShortTermInvestmentsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashAndCashEquivalentsAbstract" xlink:label="loc_us-gaap_CashAndCashEquivalentsAbstract_195CB2F7BE7C8B1014ED07B8CFECE5BE" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasisAbstract" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasisAbstract_65E2FB2F33D44B394F3007B8CFEC1CDC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsAbstract_195CB2F7BE7C8B1014ED07B8CFECE5BE" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasisAbstract_65E2FB2F33D44B394F3007B8CFEC1CDC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost_4A451B9594B7059E805107B8CFEC53BA" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasisAbstract_65E2FB2F33D44B394F3007B8CFEC1CDC" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost_4A451B9594B7059E805107B8CFEC53BA" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_DebtSecuritiesAvailableForSaleSecuritiesMaturityAllocatedAndSingleMaturityDateAfterOneThroughFourYearsAmortizedCost" xlink:label="loc_dbx_DebtSecuritiesAvailableForSaleSecuritiesMaturityAllocatedAndSingleMaturityDateAfterOneThroughFourYearsAmortizedCost_9D9D84023646E8C2452307B8CFECDB22" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasisAbstract_65E2FB2F33D44B394F3007B8CFEC1CDC" xlink:to="loc_dbx_DebtSecuritiesAvailableForSaleSecuritiesMaturityAllocatedAndSingleMaturityDateAfterOneThroughFourYearsAmortizedCost_9D9D84023646E8C2452307B8CFECDB22" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis_81529EE29ED967919DB207B8CFED895D" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasisAbstract_65E2FB2F33D44B394F3007B8CFEC1CDC" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis_81529EE29ED967919DB207B8CFED895D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAbstract" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAbstract_E53C96D2A5A13612796D07B8CFEDB5CA" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsAbstract_195CB2F7BE7C8B1014ED07B8CFECE5BE" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAbstract_E53C96D2A5A13612796D07B8CFEDB5CA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue_E023C1F104FED78CFF9A07B8CFED6313" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAbstract_E53C96D2A5A13612796D07B8CFEDB5CA" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue_E023C1F104FED78CFF9A07B8CFED6313" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_DebtSecuritiesAvailableForSaleSecuritiesMaturityAllocatedAndSingleMaturityDateAfterOneThroughFourYearsFairValue" xlink:label="loc_dbx_DebtSecuritiesAvailableForSaleSecuritiesMaturityAllocatedAndSingleMaturityDateAfterOneThroughFourYearsFairValue_4554F947D9B8E1A4D9A007B8CFED5DD9" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAbstract_E53C96D2A5A13612796D07B8CFEDB5CA" xlink:to="loc_dbx_DebtSecuritiesAvailableForSaleSecuritiesMaturityAllocatedAndSingleMaturityDateAfterOneThroughFourYearsFairValue_4554F947D9B8E1A4D9A007B8CFED5DD9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate_73773A05173A9FA0844F07B8CFED18AA" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAbstract_E53C96D2A5A13612796D07B8CFEDB5CA" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate_73773A05173A9FA0844F07B8CFED18AA" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/CashCashEquivalentsAndShortTermInvestmentsNarrativeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashAndCashEquivalentsAbstract" xlink:label="loc_us-gaap_CashAndCashEquivalentsAbstract_A37D3215EF98B351FCDA07B8CFF13770" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfCashAndCashEquivalentsTable" xlink:label="loc_us-gaap_ScheduleOfCashAndCashEquivalentsTable_6B93B202C0918E3D137E07B8CFF192D2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsAbstract_A37D3215EF98B351FCDA07B8CFF13770" xlink:to="loc_us-gaap_ScheduleOfCashAndCashEquivalentsTable_6B93B202C0918E3D137E07B8CFF192D2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashAndCashEquivalentsAxis" xlink:label="loc_us-gaap_CashAndCashEquivalentsAxis_40A17257E59C6D9C190C07B8CFF14391" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfCashAndCashEquivalentsTable_6B93B202C0918E3D137E07B8CFF192D2" xlink:to="loc_us-gaap_CashAndCashEquivalentsAxis_40A17257E59C6D9C190C07B8CFF14391" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_415A9E5CCC27FB83C2A107B8CFF2D2C5" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsAxis_40A17257E59C6D9C190C07B8CFF14391" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_415A9E5CCC27FB83C2A107B8CFF2D2C5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashMember" xlink:label="loc_us-gaap_CashMember_237BAA8D9782545FD25507B8CFF2345B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_415A9E5CCC27FB83C2A107B8CFF2D2C5" xlink:to="loc_us-gaap_CashMember_237BAA8D9782545FD25507B8CFF2345B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_MoneyMarketFundsMember" xlink:label="loc_us-gaap_MoneyMarketFundsMember_8CCBA951FB3E1ABE8FC007B8CFF2471E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_415A9E5CCC27FB83C2A107B8CFF2D2C5" xlink:to="loc_us-gaap_MoneyMarketFundsMember_8CCBA951FB3E1ABE8FC007B8CFF2471E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashAndCashEquivalentsLineItems" xlink:label="loc_us-gaap_CashAndCashEquivalentsLineItems_AE81B828F70EF1E9EE1207B8CFF2C7B5" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfCashAndCashEquivalentsTable_6B93B202C0918E3D137E07B8CFF192D2" xlink:to="loc_us-gaap_CashAndCashEquivalentsLineItems_AE81B828F70EF1E9EE1207B8CFF2C7B5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_02805F3222F26EE7C2AD07B8CFF2A77E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsLineItems_AE81B828F70EF1E9EE1207B8CFF2C7B5" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_02805F3222F26EE7C2AD07B8CFF2A77E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent_3779B684578A813883AC07B8CFF3B759" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsLineItems_AE81B828F70EF1E9EE1207B8CFF2C7B5" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent_3779B684578A813883AC07B8CFF3B759" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CreditAndDebitCardReceivablesAtCarryingValue" xlink:label="loc_us-gaap_CreditAndDebitCardReceivablesAtCarryingValue_FED66EBDABABA5E18D0507B8CFF3EB76" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsLineItems_AE81B828F70EF1E9EE1207B8CFF2C7B5" xlink:to="loc_us-gaap_CreditAndDebitCardReceivablesAtCarryingValue_FED66EBDABABA5E18D0507B8CFF3EB76" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions_B9CD345F10199446FC0007B8CFF3DA9C" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsLineItems_AE81B828F70EF1E9EE1207B8CFF2C7B5" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions_B9CD345F10199446FC0007B8CFF3DA9C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherThanTemporaryImpairmentLossDebtSecuritiesAvailableForSale" xlink:label="loc_us-gaap_OtherThanTemporaryImpairmentLossDebtSecuritiesAvailableForSale_4ACF71EDE5FDE8F0A37707B8CFF375E9" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsLineItems_AE81B828F70EF1E9EE1207B8CFF2C7B5" xlink:to="loc_us-gaap_OtherThanTemporaryImpairmentLossDebtSecuritiesAvailableForSale_4ACF71EDE5FDE8F0A37707B8CFF375E9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InvestmentIncomeNet" xlink:label="loc_us-gaap_InvestmentIncomeNet_CEE16A96728E00E82F1607B8CFF35D1B" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsLineItems_AE81B828F70EF1E9EE1207B8CFF2C7B5" xlink:to="loc_us-gaap_InvestmentIncomeNet_CEE16A96728E00E82F1607B8CFF35D1B" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/CashCashEquivalentsAndShortTermInvestmentsScheduleOfCashCashEquivalentsAndShortTermInvestmentsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashAndCashEquivalentsAbstract" xlink:label="loc_us-gaap_CashAndCashEquivalentsAbstract_A6BBEEF7972E866E464A07B8CFFBEFE0" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfCashAndCashEquivalentsTable" xlink:label="loc_us-gaap_ScheduleOfCashAndCashEquivalentsTable_6646D69590FB44FB88BC07B8CFFBDBC6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsAbstract_A6BBEEF7972E866E464A07B8CFFBEFE0" xlink:to="loc_us-gaap_ScheduleOfCashAndCashEquivalentsTable_6646D69590FB44FB88BC07B8CFFBDBC6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashAndCashEquivalentsAxis" xlink:label="loc_us-gaap_CashAndCashEquivalentsAxis_181CDB914C937AC6CA7107B8CFFB26B6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfCashAndCashEquivalentsTable_6646D69590FB44FB88BC07B8CFFBDBC6" xlink:to="loc_us-gaap_CashAndCashEquivalentsAxis_181CDB914C937AC6CA7107B8CFFB26B6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_767F6C8923D6BD87FDD207B8CFFB7D07" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsAxis_181CDB914C937AC6CA7107B8CFFB26B6" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_767F6C8923D6BD87FDD207B8CFFB7D07" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashMember" xlink:label="loc_us-gaap_CashMember_07CE7F818472947E0FF907B8CFFC4590" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_767F6C8923D6BD87FDD207B8CFFB7D07" xlink:to="loc_us-gaap_CashMember_07CE7F818472947E0FF907B8CFFC4590" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_MoneyMarketFundsMember" xlink:label="loc_us-gaap_MoneyMarketFundsMember_B95910CEB00B584D12DB07B8CFFC43E1" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_767F6C8923D6BD87FDD207B8CFFB7D07" xlink:to="loc_us-gaap_MoneyMarketFundsMember_B95910CEB00B584D12DB07B8CFFC43E1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommercialPaperMember" xlink:label="loc_us-gaap_CommercialPaperMember_C569A97A704313D13F3A07B8CFFC01A1" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_767F6C8923D6BD87FDD207B8CFFB7D07" xlink:to="loc_us-gaap_CommercialPaperMember_C569A97A704313D13F3A07B8CFFC01A1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_USTreasurySecuritiesMember" xlink:label="loc_us-gaap_USTreasurySecuritiesMember_CE656B498E7202B6968407B8CFFCA795" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_767F6C8923D6BD87FDD207B8CFFB7D07" xlink:to="loc_us-gaap_USTreasurySecuritiesMember_CE656B498E7202B6968407B8CFFCA795" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinancialInstrumentAxis" xlink:label="loc_us-gaap_FinancialInstrumentAxis_F9B6F9D18E9AF6F7867E07B8CFFCFDB6" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfCashAndCashEquivalentsTable_6646D69590FB44FB88BC07B8CFFBDBC6" xlink:to="loc_us-gaap_FinancialInstrumentAxis_F9B6F9D18E9AF6F7867E07B8CFFCFDB6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_38751050DA50E7AABDF807B8CFFDF62E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancialInstrumentAxis_F9B6F9D18E9AF6F7867E07B8CFFCFDB6" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_38751050DA50E7AABDF807B8CFFDF62E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CorporateDebtSecuritiesMember" xlink:label="loc_us-gaap_CorporateDebtSecuritiesMember_0864AB280D1E2421AEF807B8CFFD8687" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_38751050DA50E7AABDF807B8CFFDF62E" xlink:to="loc_us-gaap_CorporateDebtSecuritiesMember_0864AB280D1E2421AEF807B8CFFD8687" xlink:type="arc" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_38751050DA50E7AABDF807B8CFFDF62E" xlink:to="loc_us-gaap_USTreasurySecuritiesMember_CE656B498E7202B6968407B8CFFCA795" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CertificatesOfDepositMember" xlink:label="loc_us-gaap_CertificatesOfDepositMember_40F9460BB271FDD00BA007B8CFFD664A" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_38751050DA50E7AABDF807B8CFFDF62E" xlink:to="loc_us-gaap_CertificatesOfDepositMember_40F9460BB271FDD00BA007B8CFFD664A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_USGovernmentCorporationsAndAgenciesSecuritiesMember" xlink:label="loc_us-gaap_USGovernmentCorporationsAndAgenciesSecuritiesMember_FD1F1815170B338544FA07B8CFFDD234" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_38751050DA50E7AABDF807B8CFFDF62E" xlink:to="loc_us-gaap_USGovernmentCorporationsAndAgenciesSecuritiesMember_FD1F1815170B338544FA07B8CFFDD234" xlink:type="arc" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_38751050DA50E7AABDF807B8CFFDF62E" xlink:to="loc_us-gaap_CommercialPaperMember_C569A97A704313D13F3A07B8CFFC01A1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashAndCashEquivalentsLineItems" xlink:label="loc_us-gaap_CashAndCashEquivalentsLineItems_37AEF909C93DAE66F44A07B8CFFE478F" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfCashAndCashEquivalentsTable_6646D69590FB44FB88BC07B8CFFBDBC6" xlink:to="loc_us-gaap_CashAndCashEquivalentsLineItems_37AEF909C93DAE66F44A07B8CFFE478F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_A2C33691A27FFD69CEAF07B8CFFE5C31" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsLineItems_37AEF909C93DAE66F44A07B8CFFE478F" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_A2C33691A27FFD69CEAF07B8CFFE5C31" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashAndCashEquivalentsFairValueDisclosure" xlink:label="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_6EE6E9498147D8A6F32107B8CFFE723E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsLineItems_37AEF909C93DAE66F44A07B8CFFE478F" xlink:to="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_6EE6E9498147D8A6F32107B8CFFE723E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_4D0F792B895110154D1C07B8CFFEB0FF" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsLineItems_37AEF909C93DAE66F44A07B8CFFE478F" xlink:to="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_4D0F792B895110154D1C07B8CFFEB0FF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_C63AE553949A509FC47007B8CFFEE24B" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsLineItems_37AEF909C93DAE66F44A07B8CFFE478F" xlink:to="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_C63AE553949A509FC47007B8CFFEE24B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_E328B45E6A3D8DD0083607B8CFFF08BA" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsLineItems_37AEF909C93DAE66F44A07B8CFFE478F" xlink:to="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_E328B45E6A3D8DD0083607B8CFFF08BA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecurities" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_D077B4A7AA2EB6EA9BC007B8CFFF83BC" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsLineItems_37AEF909C93DAE66F44A07B8CFFE478F" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_D077B4A7AA2EB6EA9BC007B8CFFF83BC" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_CashCashEquivalentsAndShortTermInvestmentsAmortizedCost" xlink:label="loc_dbx_CashCashEquivalentsAndShortTermInvestmentsAmortizedCost_1150D2B4044EA790F83007B8CFFFA481" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsLineItems_37AEF909C93DAE66F44A07B8CFFE478F" xlink:to="loc_dbx_CashCashEquivalentsAndShortTermInvestmentsAmortizedCost_1150D2B4044EA790F83007B8CFFFA481" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashCashEquivalentsAndShortTermInvestments" xlink:label="loc_us-gaap_CashCashEquivalentsAndShortTermInvestments_57FEE0A973C0067FCE2507B8CFFFD615" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsLineItems_37AEF909C93DAE66F44A07B8CFFE478F" xlink:to="loc_us-gaap_CashCashEquivalentsAndShortTermInvestments_57FEE0A973C0067FCE2507B8CFFFD615" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/CashCashEquivalentsAndShortTermInvestmentsShortTermInvestmentsInUnrealizedLossPositionsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashAndCashEquivalentsAbstract" xlink:label="loc_us-gaap_CashAndCashEquivalentsAbstract_791384C2F8FA7F77E04107B8CFE4E64F" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtSecuritiesAvailableForSaleTable" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleTable_17D59FFCFDA9276A71EC07B8CFE421AB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsAbstract_791384C2F8FA7F77E04107B8CFE4E64F" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleTable_17D59FFCFDA9276A71EC07B8CFE421AB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinancialInstrumentAxis" xlink:label="loc_us-gaap_FinancialInstrumentAxis_E16727B1E6D87E17E7C807B8CFE59DC1" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtSecuritiesAvailableForSaleTable_17D59FFCFDA9276A71EC07B8CFE421AB" xlink:to="loc_us-gaap_FinancialInstrumentAxis_E16727B1E6D87E17E7C807B8CFE59DC1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_3B0752FFB08ADE1467CA07B8CFE51750" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancialInstrumentAxis_E16727B1E6D87E17E7C807B8CFE59DC1" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_3B0752FFB08ADE1467CA07B8CFE51750" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CorporateDebtSecuritiesMember" xlink:label="loc_us-gaap_CorporateDebtSecuritiesMember_0D89D532FA89F7F6969707B8CFE5FBAD" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_3B0752FFB08ADE1467CA07B8CFE51750" xlink:to="loc_us-gaap_CorporateDebtSecuritiesMember_0D89D532FA89F7F6969707B8CFE5FBAD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_USTreasurySecuritiesMember" xlink:label="loc_us-gaap_USTreasurySecuritiesMember_C98A07C1B13F0133662C07B8CFE6BB70" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_3B0752FFB08ADE1467CA07B8CFE51750" xlink:to="loc_us-gaap_USTreasurySecuritiesMember_C98A07C1B13F0133662C07B8CFE6BB70" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems" xlink:label="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_CFD26FA625C29C75A8F007B8CFE618DD" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtSecuritiesAvailableForSaleTable_17D59FFCFDA9276A71EC07B8CFE421AB" xlink:to="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_CFD26FA625C29C75A8F007B8CFE618DD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValueAbstract" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValueAbstract_5CA709C3080B3CD6326E07B8CFE64DF4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_CFD26FA625C29C75A8F007B8CFE618DD" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValueAbstract_5CA709C3080B3CD6326E07B8CFE64DF4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months_1371B5D5634BA137F5EB07B8CFE6BF65" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValueAbstract_5CA709C3080B3CD6326E07B8CFE64DF4" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months_1371B5D5634BA137F5EB07B8CFE6BF65" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger_5567AF2B1D27111B08E907B8CFE6F538" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValueAbstract_5CA709C3080B3CD6326E07B8CFE64DF4" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger_5567AF2B1D27111B08E907B8CFE6F538" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPosition" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPosition_D1E068D5247EE111C77507B8CFE78349" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValueAbstract_5CA709C3080B3CD6326E07B8CFE64DF4" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPosition_D1E068D5247EE111C77507B8CFE78349" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLossAbstract" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLossAbstract_91DF991224050B7A258907B8CFE73354" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_CFD26FA625C29C75A8F007B8CFE618DD" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLossAbstract_91DF991224050B7A258907B8CFE73354" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss_294398101E99D43B1D0407B8CFE71EF8" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLossAbstract_91DF991224050B7A258907B8CFE73354" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss_294398101E99D43B1D0407B8CFE71EF8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss_6F401494C00B957D07D907B8CFE71645" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLossAbstract_91DF991224050B7A258907B8CFE73354" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss_6F401494C00B957D07D907B8CFE71645" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss_4D9B3E70D0C7B01A4A9107B8CFE7E53A" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLossAbstract_91DF991224050B7A258907B8CFE73354" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss_4D9B3E70D0C7B01A4A9107B8CFE7E53A" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/CashCashEquivalentsAndShortTermInvestmentsTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashAndCashEquivalentsAbstract" xlink:label="loc_us-gaap_CashAndCashEquivalentsAbstract_3D687C34294BC1793DF507B8D003517A" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfCashCashEquivalentsAndShortTermInvestmentsTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfCashCashEquivalentsAndShortTermInvestmentsTableTextBlock_1011677CD1A2E2CA899307B8D00319AD" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsAbstract_3D687C34294BC1793DF507B8D003517A" xlink:to="loc_us-gaap_ScheduleOfCashCashEquivalentsAndShortTermInvestmentsTableTextBlock_1011677CD1A2E2CA899307B8D00319AD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock" xlink:label="loc_us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock_C11BDC0A38E3C732113607B8D0049F8C" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsAbstract_3D687C34294BC1793DF507B8D003517A" xlink:to="loc_us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock_C11BDC0A38E3C732113607B8D0049F8C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionFairValueTableTextBlock" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionFairValueTableTextBlock_D8CB04AE80F60DF6CAFD07B8D004D141" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsAbstract_3D687C34294BC1793DF507B8D003517A" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionFairValueTableTextBlock_D8CB04AE80F60DF6CAFD07B8D004D141" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/CommitmentsAndContingencies" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_9EA9A17A5852C1A3AEB707B8CF89C893" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_F16B8B75E3112E1E47F407B8CF89CEBE" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_9EA9A17A5852C1A3AEB707B8CF89C893" xlink:to="loc_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_F16B8B75E3112E1E47F407B8CF89CEBE" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/CommitmentsAndContingenciesNarrativeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_23C6B14D90F8646D5E7507B8CF80EF61" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LossContingenciesTable" xlink:label="loc_us-gaap_LossContingenciesTable_80F68CF628220B6CDA1907B8CF80B27F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_23C6B14D90F8646D5E7507B8CF80EF61" xlink:to="loc_us-gaap_LossContingenciesTable_80F68CF628220B6CDA1907B8CF80B27F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_15E4E641189CE68AF6A407B8CF808525" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesTable_80F68CF628220B6CDA1907B8CF80B27F" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_15E4E641189CE68AF6A407B8CF808525" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_F02468934809D60B612007B8CF801A21" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_15E4E641189CE68AF6A407B8CF808525" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_F02468934809D60B612007B8CF801A21" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BuildingMember" xlink:label="loc_us-gaap_BuildingMember_815073C2AAF8FEC7D7AE07B8CF812029" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_F02468934809D60B612007B8CF801A21" xlink:to="loc_us-gaap_BuildingMember_815073C2AAF8FEC7D7AE07B8CF812029" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BalanceSheetLocationAxis" xlink:label="loc_us-gaap_BalanceSheetLocationAxis_AC49A71970A8901833F107B8CF819A7E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesTable_80F68CF628220B6CDA1907B8CF80B27F" xlink:to="loc_us-gaap_BalanceSheetLocationAxis_AC49A71970A8901833F107B8CF819A7E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BalanceSheetLocationDomain" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_BBD001CDC46B8782F80A07B8CF819791" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_AC49A71970A8901833F107B8CF819A7E" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_BBD001CDC46B8782F80A07B8CF819791" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_AccruedAndOtherCurrentLiabilitiesMember" xlink:label="loc_dbx_AccruedAndOtherCurrentLiabilitiesMember_C1F1BF4A7271397BA8B307B8CF81E8AC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_BBD001CDC46B8782F80A07B8CF819791" xlink:to="loc_dbx_AccruedAndOtherCurrentLiabilitiesMember_C1F1BF4A7271397BA8B307B8CF81E8AC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherNoncurrentLiabilitiesMember" xlink:label="loc_us-gaap_OtherNoncurrentLiabilitiesMember_2B7AC3E080B430C15D2007B8CF827883" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_BBD001CDC46B8782F80A07B8CF819791" xlink:to="loc_us-gaap_OtherNoncurrentLiabilitiesMember_2B7AC3E080B430C15D2007B8CF827883" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LossContingenciesByNatureOfContingencyAxis" xlink:label="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_2FBE79044287D96E4BE307B8CF821995" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesTable_80F68CF628220B6CDA1907B8CF80B27F" xlink:to="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_2FBE79044287D96E4BE307B8CF821995" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LossContingencyNatureDomain" xlink:label="loc_us-gaap_LossContingencyNatureDomain_046CED2135E1EEF13CCA07B8CF824EF7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_2FBE79044287D96E4BE307B8CF821995" xlink:to="loc_us-gaap_LossContingencyNatureDomain_046CED2135E1EEF13CCA07B8CF824EF7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinancialStandbyLetterOfCreditMember" xlink:label="loc_us-gaap_FinancialStandbyLetterOfCreditMember_AA156B11E388E40993A407B8CF821695" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingencyNatureDomain_046CED2135E1EEF13CCA07B8CF824EF7" xlink:to="loc_us-gaap_FinancialStandbyLetterOfCreditMember_AA156B11E388E40993A407B8CF821695" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LossContingenciesLineItems" xlink:label="loc_us-gaap_LossContingenciesLineItems_49D41BAB6F139F42C18207B8CF83CD18" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesTable_80F68CF628220B6CDA1907B8CF80B27F" xlink:to="loc_us-gaap_LossContingenciesLineItems_49D41BAB6F139F42C18207B8CF83CD18" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LeaseAndRentalExpense" xlink:label="loc_us-gaap_LeaseAndRentalExpense_E8DF892C40930C803E3407B8CF833957" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesLineItems_49D41BAB6F139F42C18207B8CF83CD18" xlink:to="loc_us-gaap_LeaseAndRentalExpense_E8DF892C40930C803E3407B8CF833957" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SubleaseIncome" xlink:label="loc_us-gaap_SubleaseIncome_35D5C44CA09CF6E982F207B8CF838C4B" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesLineItems_49D41BAB6F139F42C18207B8CF83CD18" xlink:to="loc_us-gaap_SubleaseIncome_35D5C44CA09CF6E982F207B8CF838C4B" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_OperatingLeasesFutureMinimumPaymentsNoLongerObligatedToPay" xlink:label="loc_dbx_OperatingLeasesFutureMinimumPaymentsNoLongerObligatedToPay_EB7930151494D731BE7F07B8CF8366C8" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesLineItems_49D41BAB6F139F42C18207B8CF83CD18" xlink:to="loc_dbx_OperatingLeasesFutureMinimumPaymentsNoLongerObligatedToPay_EB7930151494D731BE7F07B8CF8366C8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_0242854427ED01122B2A07B8CF83CD55" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesLineItems_49D41BAB6F139F42C18207B8CF83CD18" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_0242854427ED01122B2A07B8CF83CD55" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinanceLeaseLiability" xlink:label="loc_us-gaap_FinanceLeaseLiability_A52F66F8345F90E3766E07B8CF83450F" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesLineItems_49D41BAB6F139F42C18207B8CF83CD18" xlink:to="loc_us-gaap_FinanceLeaseLiability_A52F66F8345F90E3766E07B8CF83450F" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_OperatingLeaseMinimumObligations" xlink:label="loc_dbx_OperatingLeaseMinimumObligations_8468371F7A8440872F9207B8CF848B67" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesLineItems_49D41BAB6F139F42C18207B8CF83CD18" xlink:to="loc_dbx_OperatingLeaseMinimumObligations_8468371F7A8440872F9207B8CF848B67" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TenantImprovements" xlink:label="loc_us-gaap_TenantImprovements_155E608DAF7BA849F49407B8CF844770" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesLineItems_49D41BAB6F139F42C18207B8CF83CD18" xlink:to="loc_us-gaap_TenantImprovements_155E608DAF7BA849F49407B8CF844770" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LossContingencyEstimateOfPossibleLoss" xlink:label="loc_us-gaap_LossContingencyEstimateOfPossibleLoss_821778AF8940E2BE13D107B8CF842049" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesLineItems_49D41BAB6F139F42C18207B8CF83CD18" xlink:to="loc_us-gaap_LossContingencyEstimateOfPossibleLoss_821778AF8940E2BE13D107B8CF842049" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/CommitmentsAndContingenciesScheduleOfFutureMinimumPaymentsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_934A91E498DDBAFA438C07B8CF74C235" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPaymentsAbstract" xlink:label="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPaymentsAbstract_D8C5F34FA0B2B7BA926A07B8CF744445" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_934A91E498DDBAFA438C07B8CF74C235" xlink:to="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPaymentsAbstract_D8C5F34FA0B2B7BA926A07B8CF744445" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsDueCurrent" xlink:label="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueCurrent_EF87958409151AFF4BF807B8CF7514E1" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPaymentsAbstract_D8C5F34FA0B2B7BA926A07B8CF744445" xlink:to="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueCurrent_EF87958409151AFF4BF807B8CF7514E1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsDueInTwoYears" xlink:label="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInTwoYears_B3015792509D8366E54407B8CF75A723" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPaymentsAbstract_D8C5F34FA0B2B7BA926A07B8CF744445" xlink:to="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInTwoYears_B3015792509D8366E54407B8CF75A723" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsDueInThreeYears" xlink:label="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInThreeYears_D4C010AE9C275FEDB46107B8CF75ED59" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPaymentsAbstract_D8C5F34FA0B2B7BA926A07B8CF744445" xlink:to="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInThreeYears_D4C010AE9C275FEDB46107B8CF75ED59" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFourYears" xlink:label="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFourYears_A22A142D897C19CE70F007B8CF7568D5" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPaymentsAbstract_D8C5F34FA0B2B7BA926A07B8CF744445" xlink:to="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFourYears_A22A142D897C19CE70F007B8CF7568D5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFiveYears" xlink:label="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFiveYears_32DD609EEDEBCB644F9407B8CF755A18" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPaymentsAbstract_D8C5F34FA0B2B7BA926A07B8CF744445" xlink:to="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFiveYears_32DD609EEDEBCB644F9407B8CF755A18" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsDueThereafter" xlink:label="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueThereafter_ABF9E905D3FED192EE4307B8CF75EADE" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPaymentsAbstract_D8C5F34FA0B2B7BA926A07B8CF744445" xlink:to="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueThereafter_ABF9E905D3FED192EE4307B8CF75EADE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsDue" xlink:label="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDue_2A8219C97D7D9D43AB3607B8CF768D89" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPaymentsAbstract_D8C5F34FA0B2B7BA926A07B8CF744445" xlink:to="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDue_2A8219C97D7D9D43AB3607B8CF768D89" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments" xlink:label="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments_4F3C81B68DB7C3F5B02607B8CF7682F6" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPaymentsAbstract_D8C5F34FA0B2B7BA926A07B8CF744445" xlink:to="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments_4F3C81B68DB7C3F5B02607B8CF7682F6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CapitalLeaseObligationsCurrent" xlink:label="loc_us-gaap_CapitalLeaseObligationsCurrent_858ABEA050030DB905C307B8CF76D6B9" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPaymentsAbstract_D8C5F34FA0B2B7BA926A07B8CF744445" xlink:to="loc_us-gaap_CapitalLeaseObligationsCurrent_858ABEA050030DB905C307B8CF76D6B9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CapitalLeaseObligationsNoncurrent" xlink:label="loc_us-gaap_CapitalLeaseObligationsNoncurrent_E0A42391100E9E99633207B8CF7656F9" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPaymentsAbstract_D8C5F34FA0B2B7BA926A07B8CF744445" xlink:to="loc_us-gaap_CapitalLeaseObligationsNoncurrent_E0A42391100E9E99633207B8CF7656F9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_5FFD27B3B1B28CF19CCA07B8CF767CAC" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_934A91E498DDBAFA438C07B8CF74C235" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_5FFD27B3B1B28CF19CCA07B8CF767CAC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_8CDF5417B65C86CEDCD207B8CF76D178" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_5FFD27B3B1B28CF19CCA07B8CF767CAC" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_8CDF5417B65C86CEDCD207B8CF76D178" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_F8A116E0E6F626D622C707B8CF77B1CB" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_5FFD27B3B1B28CF19CCA07B8CF767CAC" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_F8A116E0E6F626D622C707B8CF77B1CB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_A5BC0C545BC2C45DDE7807B8CF770451" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_5FFD27B3B1B28CF19CCA07B8CF767CAC" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_A5BC0C545BC2C45DDE7807B8CF770451" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears_651CA71C9F227401D71407B8CF77AEBF" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_5FFD27B3B1B28CF19CCA07B8CF767CAC" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears_651CA71C9F227401D71407B8CF77AEBF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_5E1D30339FF7EBB3880F07B8CF7792D5" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_5FFD27B3B1B28CF19CCA07B8CF767CAC" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_5E1D30339FF7EBB3880F07B8CF7792D5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter_26874FBB2994437849F407B8CF7789E0" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_5FFD27B3B1B28CF19CCA07B8CF767CAC" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter_26874FBB2994437849F407B8CF7789E0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDue" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_7170C1D2D59D6D36FC4507B8CF778F81" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_5FFD27B3B1B28CF19CCA07B8CF767CAC" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_7170C1D2D59D6D36FC4507B8CF778F81" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherCommitmentFiscalYearMaturityAbstract" xlink:label="loc_us-gaap_OtherCommitmentFiscalYearMaturityAbstract_A6BAA65CBC42953F9D7807B8CF7877A8" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_934A91E498DDBAFA438C07B8CF74C235" xlink:to="loc_us-gaap_OtherCommitmentFiscalYearMaturityAbstract_A6BAA65CBC42953F9D7807B8CF7877A8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherCommitmentDueInNextTwelveMonths" xlink:label="loc_us-gaap_OtherCommitmentDueInNextTwelveMonths_F52FC521345F6798582507B8CF789797" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentFiscalYearMaturityAbstract_A6BAA65CBC42953F9D7807B8CF7877A8" xlink:to="loc_us-gaap_OtherCommitmentDueInNextTwelveMonths_F52FC521345F6798582507B8CF789797" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherCommitmentDueInSecondYear" xlink:label="loc_us-gaap_OtherCommitmentDueInSecondYear_8BEB7F510F7B0D78419B07B8CF7891E2" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentFiscalYearMaturityAbstract_A6BAA65CBC42953F9D7807B8CF7877A8" xlink:to="loc_us-gaap_OtherCommitmentDueInSecondYear_8BEB7F510F7B0D78419B07B8CF7891E2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherCommitmentDueInThirdYear" xlink:label="loc_us-gaap_OtherCommitmentDueInThirdYear_C17ABE4E0B4E6C04EA8F07B8CF78C394" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentFiscalYearMaturityAbstract_A6BAA65CBC42953F9D7807B8CF7877A8" xlink:to="loc_us-gaap_OtherCommitmentDueInThirdYear_C17ABE4E0B4E6C04EA8F07B8CF78C394" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherCommitmentDueInFourthYear" xlink:label="loc_us-gaap_OtherCommitmentDueInFourthYear_CA39EB5D118E96AC972F07B8CF78DAE5" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentFiscalYearMaturityAbstract_A6BAA65CBC42953F9D7807B8CF7877A8" xlink:to="loc_us-gaap_OtherCommitmentDueInFourthYear_CA39EB5D118E96AC972F07B8CF78DAE5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherCommitmentDueInFifthYear" xlink:label="loc_us-gaap_OtherCommitmentDueInFifthYear_3A1F9C634A1E8262454D07B8CF78630D" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentFiscalYearMaturityAbstract_A6BAA65CBC42953F9D7807B8CF7877A8" xlink:to="loc_us-gaap_OtherCommitmentDueInFifthYear_3A1F9C634A1E8262454D07B8CF78630D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherCommitmentDueAfterFifthYear" xlink:label="loc_us-gaap_OtherCommitmentDueAfterFifthYear_3F3095C772C0F39F891D07B8CF798D67" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentFiscalYearMaturityAbstract_A6BAA65CBC42953F9D7807B8CF7877A8" xlink:to="loc_us-gaap_OtherCommitmentDueAfterFifthYear_3F3095C772C0F39F891D07B8CF798D67" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherCommitment" xlink:label="loc_us-gaap_OtherCommitment_F84752D55C8B5CDE8CAA07B8CF79A469" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentFiscalYearMaturityAbstract_A6BAA65CBC42953F9D7807B8CF7877A8" xlink:to="loc_us-gaap_OtherCommitment_F84752D55C8B5CDE8CAA07B8CF79A469" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentals" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentals_26727C7083230B295B4907B8CF79E598" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_934A91E498DDBAFA438C07B8CF74C235" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentals_26727C7083230B295B4907B8CF79E598" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/CommitmentsAndContingenciesTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_B1A4C63F2774BF055AF107B8CF878D71" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ContractualObligationFiscalYearMaturityScheduleTableTextBlock" xlink:label="loc_us-gaap_ContractualObligationFiscalYearMaturityScheduleTableTextBlock_1B82CF59F0AFFCF0E8A607B8CF87CCDC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_B1A4C63F2774BF055AF107B8CF878D71" xlink:to="loc_us-gaap_ContractualObligationFiscalYearMaturityScheduleTableTextBlock_1B82CF59F0AFFCF0E8A607B8CF87CCDC" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/ConsolidatedBalanceSheets" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="loc_us-gaap_StatementOfFinancialPositionAbstract_28195A7B0FB0C3496C0A12B0D8C5B7B6" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_D2CCAC14805E3EBE6C4D12B0D8C7911A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_28195A7B0FB0C3496C0A12B0D8C5B7B6" xlink:to="loc_us-gaap_StatementTable_D2CCAC14805E3EBE6C4D12B0D8C7911A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_94388E87E26B7D4444C412B0D8C8643B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_D2CCAC14805E3EBE6C4D12B0D8C7911A" xlink:to="loc_us-gaap_StatementClassOfStockAxis_94388E87E26B7D4444C412B0D8C8643B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_9304286DE8141E6B47C312B0D8C822EC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementClassOfStockAxis_94388E87E26B7D4444C412B0D8C8643B" xlink:to="loc_us-gaap_ClassOfStockDomain_9304286DE8141E6B47C312B0D8C822EC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConvertiblePreferredStockMember" xlink:label="loc_us-gaap_ConvertiblePreferredStockMember_785C45FD6224FA039ACA12B0D8C8445B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_9304286DE8141E6B47C312B0D8C822EC" xlink:to="loc_us-gaap_ConvertiblePreferredStockMember_785C45FD6224FA039ACA12B0D8C8445B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_92C893C6328345F329D012B0D8CA52AE" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_D2CCAC14805E3EBE6C4D12B0D8C7911A" xlink:to="loc_us-gaap_StatementLineItems_92C893C6328345F329D012B0D8CA52AE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AssetsAbstract" xlink:label="loc_us-gaap_AssetsAbstract_41CAA53A9007436B81F312B0D8CA271A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_92C893C6328345F329D012B0D8CA52AE" xlink:to="loc_us-gaap_AssetsAbstract_41CAA53A9007436B81F312B0D8CA271A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AssetsCurrentAbstract" xlink:label="loc_us-gaap_AssetsCurrentAbstract_31165E449657E17075FD12B0D8CA99BE" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_41CAA53A9007436B81F312B0D8CA271A" xlink:to="loc_us-gaap_AssetsCurrentAbstract_31165E449657E17075FD12B0D8CA99BE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_A0F18CEAF3FE5080CACA12B0D8CCB40B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_31165E449657E17075FD12B0D8CA99BE" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_A0F18CEAF3FE5080CACA12B0D8CCB40B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent_7450144D3E2FE41326CB12B0D8CC0C18" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_31165E449657E17075FD12B0D8CA99BE" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent_7450144D3E2FE41326CB12B0D8CC0C18" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_B08721986EB13A5AD26E12B0D8CC9C2B" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_31165E449657E17075FD12B0D8CA99BE" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_B08721986EB13A5AD26E12B0D8CC9C2B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:label="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_D29ECE6CBF12B283FA1012B0D8CCEBE6" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_31165E449657E17075FD12B0D8CA99BE" xlink:to="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_D29ECE6CBF12B283FA1012B0D8CCEBE6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="loc_us-gaap_AssetsCurrent_A91A53C162797B939AC912B0D8CC9C57" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_31165E449657E17075FD12B0D8CA99BE" xlink:to="loc_us-gaap_AssetsCurrent_A91A53C162797B939AC912B0D8CC9C57" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_B4EE94A7FD85614B16CD12B0D8CC6B5F" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_41CAA53A9007436B81F312B0D8CA271A" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_B4EE94A7FD85614B16CD12B0D8CC6B5F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_C26E0363004D804B524312B0D8CC791C" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_41CAA53A9007436B81F312B0D8CA271A" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_C26E0363004D804B524312B0D8CC791C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_8350337AB17E4801F99C12B0D8CCF630" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_41CAA53A9007436B81F312B0D8CA271A" xlink:to="loc_us-gaap_Goodwill_8350337AB17E4801F99C12B0D8CCF630" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_8E009A760E90D76B100C12B0D8CC2605" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_41CAA53A9007436B81F312B0D8CA271A" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_8E009A760E90D76B100C12B0D8CC2605" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaap_Assets_E137BFF61FCFD9CA945A12B0D8CC77F2" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_41CAA53A9007436B81F312B0D8CA271A" xlink:to="loc_us-gaap_Assets_E137BFF61FCFD9CA945A12B0D8CC77F2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_DE41C77B09025D9A08BD12B0D8CEBB32" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_92C893C6328345F329D012B0D8CA52AE" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_DE41C77B09025D9A08BD12B0D8CEBB32" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LiabilitiesAbstract" xlink:label="loc_us-gaap_LiabilitiesAbstract_BF19F6E9F72FE7714EEC12B0D8CEB2B8" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_DE41C77B09025D9A08BD12B0D8CEBB32" xlink:to="loc_us-gaap_LiabilitiesAbstract_BF19F6E9F72FE7714EEC12B0D8CEB2B8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract" xlink:label="loc_us-gaap_LiabilitiesCurrentAbstract_D007E3F5FABEB57B397D12B0D8CE6F5C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAbstract_BF19F6E9F72FE7714EEC12B0D8CEB2B8" xlink:to="loc_us-gaap_LiabilitiesCurrentAbstract_D007E3F5FABEB57B397D12B0D8CE6F5C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccountsPayableCurrent" xlink:label="loc_us-gaap_AccountsPayableCurrent_C630BC2B74E7D323A00D12B0D8CE4554" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_D007E3F5FABEB57B397D12B0D8CE6F5C" xlink:to="loc_us-gaap_AccountsPayableCurrent_C630BC2B74E7D323A00D12B0D8CE4554" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_AccruedLiabilitiesandOtherLiabilitiesCurrent" xlink:label="loc_dbx_AccruedLiabilitiesandOtherLiabilitiesCurrent_5B6D33A8CD3AA5E13A7212B0D8CF7353" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_D007E3F5FABEB57B397D12B0D8CE6F5C" xlink:to="loc_dbx_AccruedLiabilitiesandOtherLiabilitiesCurrent_5B6D33A8CD3AA5E13A7212B0D8CF7353" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrent" xlink:label="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_FA62CA5D3DA2215BF27F12B0D8CF77DD" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_D007E3F5FABEB57B397D12B0D8CE6F5C" xlink:to="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_FA62CA5D3DA2215BF27F12B0D8CF77DD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CapitalLeaseObligationsCurrent" xlink:label="loc_us-gaap_CapitalLeaseObligationsCurrent_43CE644301102E6F13AE12B0D8CFAECB" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_D007E3F5FABEB57B397D12B0D8CE6F5C" xlink:to="loc_us-gaap_CapitalLeaseObligationsCurrent_43CE644301102E6F13AE12B0D8CFAECB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ContractWithCustomerLiabilityCurrent" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_0579EBB871869533FDC212B0D8CF0BAC" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_D007E3F5FABEB57B397D12B0D8CE6F5C" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityCurrent_0579EBB871869533FDC212B0D8CF0BAC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="loc_us-gaap_LiabilitiesCurrent_79B594BA54064E010EBF12B0D8CFAF2B" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_D007E3F5FABEB57B397D12B0D8CE6F5C" xlink:to="loc_us-gaap_LiabilitiesCurrent_79B594BA54064E010EBF12B0D8CFAF2B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CapitalLeaseObligationsNoncurrent" xlink:label="loc_us-gaap_CapitalLeaseObligationsNoncurrent_6B106C9B109E13E2155912B0D8CFE438" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAbstract_BF19F6E9F72FE7714EEC12B0D8CEB2B8" xlink:to="loc_us-gaap_CapitalLeaseObligationsNoncurrent_6B106C9B109E13E2155912B0D8CFE438" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredRentCreditNoncurrent" xlink:label="loc_us-gaap_DeferredRentCreditNoncurrent_B773347B6F8659DF1B4712B0D8D0A005" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAbstract_BF19F6E9F72FE7714EEC12B0D8CEB2B8" xlink:to="loc_us-gaap_DeferredRentCreditNoncurrent_B773347B6F8659DF1B4712B0D8D0A005" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_9911EDE37018D450E26612B0D8D0B8D0" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAbstract_BF19F6E9F72FE7714EEC12B0D8CEB2B8" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_9911EDE37018D450E26612B0D8D0B8D0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Liabilities" xlink:label="loc_us-gaap_Liabilities_B4DC52246D1609ED6AB912B0D8D062D5" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAbstract_BF19F6E9F72FE7714EEC12B0D8CEB2B8" xlink:to="loc_us-gaap_Liabilities_B4DC52246D1609ED6AB912B0D8D062D5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommitmentsAndContingencies" xlink:label="loc_us-gaap_CommitmentsAndContingencies_2C01D490F2254D404C8612B0D8D06605" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_DE41C77B09025D9A08BD12B0D8CEBB32" xlink:to="loc_us-gaap_CommitmentsAndContingencies_2C01D490F2254D404C8612B0D8D06605" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockholdersEquityAbstract" xlink:label="loc_us-gaap_StockholdersEquityAbstract_482CEF1FAEA573207A0312B0D8D029A1" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_DE41C77B09025D9A08BD12B0D8CEBB32" xlink:to="loc_us-gaap_StockholdersEquityAbstract_482CEF1FAEA573207A0312B0D8D029A1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PreferredStockValue" xlink:label="loc_us-gaap_PreferredStockValue_574F6268710B43E2ED5812B0D8D08F0C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_482CEF1FAEA573207A0312B0D8D029A1" xlink:to="loc_us-gaap_PreferredStockValue_574F6268710B43E2ED5812B0D8D08F0C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonStockValue" xlink:label="loc_us-gaap_CommonStockValue_091D0455376F1B0E727212B0D8D1B2F0" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_482CEF1FAEA573207A0312B0D8D029A1" xlink:to="loc_us-gaap_CommonStockValue_091D0455376F1B0E727212B0D8D1B2F0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AdditionalPaidInCapital" xlink:label="loc_us-gaap_AdditionalPaidInCapital_BB985554A10000C3FD1712B0D8D16D87" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_482CEF1FAEA573207A0312B0D8D029A1" xlink:to="loc_us-gaap_AdditionalPaidInCapital_BB985554A10000C3FD1712B0D8D16D87" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_1AF3133B2511B0B9571512B0D8D16198" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_482CEF1FAEA573207A0312B0D8D029A1" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_1AF3133B2511B0B9571512B0D8D16198" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_833E195124DF6473118B12B0D8D1CCD7" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_482CEF1FAEA573207A0312B0D8D029A1" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_833E195124DF6473118B12B0D8D1CCD7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_F5885FB518F70974A1F812B0D8D1ABFB" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_482CEF1FAEA573207A0312B0D8D029A1" xlink:to="loc_us-gaap_StockholdersEquity_F5885FB518F70974A1F812B0D8D1ABFB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_6792BEDA07743A84FA4012B0D8D1308A" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_DE41C77B09025D9A08BD12B0D8CEBB32" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquity_6792BEDA07743A84FA4012B0D8D1308A" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/ConsolidatedBalanceSheetsParenthetical" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="loc_us-gaap_StatementOfFinancialPositionAbstract_F6454D658665D65B4EF707B8D0E9A588" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_AF9EBD567E1759F3F54F07B8D0E9F9AA" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_F6454D658665D65B4EF707B8D0E9A588" xlink:to="loc_us-gaap_StatementTable_AF9EBD567E1759F3F54F07B8D0E9F9AA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_2F4C2F2748C74912C99007B8D0EACB3B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_AF9EBD567E1759F3F54F07B8D0E9F9AA" xlink:to="loc_us-gaap_StatementClassOfStockAxis_2F4C2F2748C74912C99007B8D0EACB3B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_E0E4A75E4128BE06F22D07B8D0EAC28E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementClassOfStockAxis_2F4C2F2748C74912C99007B8D0EACB3B" xlink:to="loc_us-gaap_ClassOfStockDomain_E0E4A75E4128BE06F22D07B8D0EAC28E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConvertiblePreferredStockMember" xlink:label="loc_us-gaap_ConvertiblePreferredStockMember_9E2CDFFBE7A5AE7AD19507B8D0EA0BFB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_E0E4A75E4128BE06F22D07B8D0EAC28E" xlink:to="loc_us-gaap_ConvertiblePreferredStockMember_9E2CDFFBE7A5AE7AD19507B8D0EA0BFB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonClassAMember" xlink:label="loc_us-gaap_CommonClassAMember_63C31E20E4182C6F979007B8D0EA4951" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_E0E4A75E4128BE06F22D07B8D0EAC28E" xlink:to="loc_us-gaap_CommonClassAMember_63C31E20E4182C6F979007B8D0EA4951" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonClassBMember" xlink:label="loc_us-gaap_CommonClassBMember_D8C54A03320E6018407707B8D0EB1019" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_E0E4A75E4128BE06F22D07B8D0EAC28E" xlink:to="loc_us-gaap_CommonClassBMember_D8C54A03320E6018407707B8D0EB1019" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonClassCMember" xlink:label="loc_us-gaap_CommonClassCMember_56500B378A184A7BBC4807B8D0EB9B5C" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_E0E4A75E4128BE06F22D07B8D0EAC28E" xlink:to="loc_us-gaap_CommonClassCMember_56500B378A184A7BBC4807B8D0EB9B5C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_94B0958F398B8FAF06C507B8D0EB26EF" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_AF9EBD567E1759F3F54F07B8D0E9F9AA" xlink:to="loc_us-gaap_StatementLineItems_94B0958F398B8FAF06C507B8D0EB26EF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PreferredStockParOrStatedValuePerShare" xlink:label="loc_us-gaap_PreferredStockParOrStatedValuePerShare_5E02C706527289E25E7D07B8D0EBF09D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_94B0958F398B8FAF06C507B8D0EB26EF" xlink:to="loc_us-gaap_PreferredStockParOrStatedValuePerShare_5E02C706527289E25E7D07B8D0EBF09D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PreferredStockSharesAuthorized" xlink:label="loc_us-gaap_PreferredStockSharesAuthorized_20AB53CE145389B3FD5507B8D0F0F0BD" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_94B0958F398B8FAF06C507B8D0EB26EF" xlink:to="loc_us-gaap_PreferredStockSharesAuthorized_20AB53CE145389B3FD5507B8D0F0F0BD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PreferredStockSharesIssued" xlink:label="loc_us-gaap_PreferredStockSharesIssued_C1DDA990FB29E7C9014207B8D0F13C1D" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_94B0958F398B8FAF06C507B8D0EB26EF" xlink:to="loc_us-gaap_PreferredStockSharesIssued_C1DDA990FB29E7C9014207B8D0F13C1D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PreferredStockSharesOutstanding" xlink:label="loc_us-gaap_PreferredStockSharesOutstanding_DFE7970BDDFDC9BB910407B8D0F1EC32" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_94B0958F398B8FAF06C507B8D0EB26EF" xlink:to="loc_us-gaap_PreferredStockSharesOutstanding_DFE7970BDDFDC9BB910407B8D0F1EC32" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PreferredStockLiquidationPreferenceValue" xlink:label="loc_us-gaap_PreferredStockLiquidationPreferenceValue_C08EF80E6DDF401043C007B8D0F12AAB" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_94B0958F398B8FAF06C507B8D0EB26EF" xlink:to="loc_us-gaap_PreferredStockLiquidationPreferenceValue_C08EF80E6DDF401043C007B8D0F12AAB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_042DEC56E7A565C9A18F07B8D0F1A02E" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_94B0958F398B8FAF06C507B8D0EB26EF" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_042DEC56E7A565C9A18F07B8D0F1A02E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonStockSharesAuthorized" xlink:label="loc_us-gaap_CommonStockSharesAuthorized_4004446D267AB61F6AB607B8D0F1C859" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_94B0958F398B8FAF06C507B8D0EB26EF" xlink:to="loc_us-gaap_CommonStockSharesAuthorized_4004446D267AB61F6AB607B8D0F1C859" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonStockSharesIssued" xlink:label="loc_us-gaap_CommonStockSharesIssued_235DAAB2564A0B2BA6E407B8D0F14691" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_94B0958F398B8FAF06C507B8D0EB26EF" xlink:to="loc_us-gaap_CommonStockSharesIssued_235DAAB2564A0B2BA6E407B8D0F14691" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_9F224625B62592C3C00107B8D0F2851B" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_94B0958F398B8FAF06C507B8D0EB26EF" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_9F224625B62592C3C00107B8D0F2851B" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/ConsolidatedStatementsOfCashFlows" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="loc_us-gaap_StatementOfCashFlowsAbstract_8A33FE336DD312BA809607B8D07E8E78" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_8FE408D4170CAB05F84E07B8D07E8D50" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_8A33FE336DD312BA809607B8D07E8E78" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_8FE408D4170CAB05F84E07B8D07E8D50" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_A7EA19F454AC29032D8707B8D07FB3F8" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_8FE408D4170CAB05F84E07B8D07E8D50" xlink:to="loc_us-gaap_NetIncomeLoss_A7EA19F454AC29032D8707B8D07FB3F8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_7EEB8D591607332BB06607B8D07FBD78" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_8FE408D4170CAB05F84E07B8D07E8D50" xlink:to="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_7EEB8D591607332BB06607B8D07FBD78" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_DeprecationDepletionAndAmortizationExcludingAmortizationOfDeferredSalesCommissions" xlink:label="loc_dbx_DeprecationDepletionAndAmortizationExcludingAmortizationOfDeferredSalesCommissions_69A5C6781A16F7A7094B07B8D07FB60D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_7EEB8D591607332BB06607B8D07FBD78" xlink:to="loc_dbx_DeprecationDepletionAndAmortizationExcludingAmortizationOfDeferredSalesCommissions_69A5C6781A16F7A7094B07B8D07FB60D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="loc_us-gaap_ShareBasedCompensation_A28C1CF498C1B27D196E07B8D08095DB" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_7EEB8D591607332BB06607B8D07FBD78" xlink:to="loc_us-gaap_ShareBasedCompensation_A28C1CF498C1B27D196E07B8D08095DB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AmortizationOfDeferredSalesCommissions" xlink:label="loc_us-gaap_AmortizationOfDeferredSalesCommissions_80B153D6F2A715D85B4907B8D080AFD8" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_7EEB8D591607332BB06607B8D07FBD78" xlink:to="loc_us-gaap_AmortizationOfDeferredSalesCommissions_80B153D6F2A715D85B4907B8D080AFD8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NoncashContributionExpense" xlink:label="loc_us-gaap_NoncashContributionExpense_8FDB71D67157A30657D607B8D080F76F" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_7EEB8D591607332BB06607B8D07FBD78" xlink:to="loc_us-gaap_NoncashContributionExpense_8FDB71D67157A30657D607B8D080F76F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherNoncashIncomeExpense" xlink:label="loc_us-gaap_OtherNoncashIncomeExpense_A8BFE578C12E3D8BC0CC07B8D08044EF" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_7EEB8D591607332BB06607B8D07FBD78" xlink:to="loc_us-gaap_OtherNoncashIncomeExpense_A8BFE578C12E3D8BC0CC07B8D08044EF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_475DA817270ED42486EA07B8D0802706" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_7EEB8D591607332BB06607B8D07FBD78" xlink:to="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_475DA817270ED42486EA07B8D0802706" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsAndOtherReceivables" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsAndOtherReceivables_76CD8C6225CFC694587D07B8D08083ED" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_475DA817270ED42486EA07B8D0802706" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsAndOtherReceivables_76CD8C6225CFC694587D07B8D08083ED" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:label="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_67B193A2B37747C6446F07B8D081000D" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_475DA817270ED42486EA07B8D0802706" xlink:to="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_67B193A2B37747C6446F07B8D081000D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingAssets" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_114B1699FF936C27332307B8D0810AD4" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_475DA817270ED42486EA07B8D0802706" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_114B1699FF936C27332307B8D0810AD4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayable" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable_B7C3C0F3BCFC743A48A607B8D081CCA9" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_475DA817270ED42486EA07B8D0802706" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayable_B7C3C0F3BCFC743A48A607B8D081CCA9" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_IncreaseDecreaseInAccruedLiabilitiesAndOtherLiabilities" xlink:label="loc_dbx_IncreaseDecreaseInAccruedLiabilitiesAndOtherLiabilities_60FB35992E7EA12FCB6207B8D08170C8" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_475DA817270ED42486EA07B8D0802706" xlink:to="loc_dbx_IncreaseDecreaseInAccruedLiabilitiesAndOtherLiabilities_60FB35992E7EA12FCB6207B8D08170C8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInEmployeeRelatedLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInEmployeeRelatedLiabilities_80F94EF894FC1F185CBA07B8D0817443" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_475DA817270ED42486EA07B8D0802706" xlink:to="loc_us-gaap_IncreaseDecreaseInEmployeeRelatedLiabilities_80F94EF894FC1F185CBA07B8D0817443" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInContractWithCustomerLiability" xlink:label="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_4533FFBC4DAAAE291DB807B8D081460A" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_475DA817270ED42486EA07B8D0802706" xlink:to="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_4533FFBC4DAAAE291DB807B8D081460A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities_FD804C8A05EBA019A2C807B8D082C9BC" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_475DA817270ED42486EA07B8D0802706" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities_FD804C8A05EBA019A2C807B8D082C9BC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_AB99496A665C45C35C2B07B8D0825842" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_8FE408D4170CAB05F84E07B8D07E8D50" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_AB99496A665C45C35C2B07B8D0825842" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_E5D857E66C0F0B3A9CFE07B8D0826D15" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_8A33FE336DD312BA809607B8D07E8E78" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_E5D857E66C0F0B3A9CFE07B8D0826D15" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_E39CDE1F4C2A4D06484707B8D082EFC2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_E5D857E66C0F0B3A9CFE07B8D0826D15" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_E39CDE1F4C2A4D06484707B8D082EFC2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsToAcquireIntangibleAssets" xlink:label="loc_us-gaap_PaymentsToAcquireIntangibleAssets_61A7F8D59AAFD956D21607B8D082F0C2" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_E5D857E66C0F0B3A9CFE07B8D0826D15" xlink:to="loc_us-gaap_PaymentsToAcquireIntangibleAssets_61A7F8D59AAFD956D21607B8D082F0C2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt" xlink:label="loc_us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt_3E2F7FB463A0F7D54D9407B8D0834916" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_E5D857E66C0F0B3A9CFE07B8D0826D15" xlink:to="loc_us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt_3E2F7FB463A0F7D54D9407B8D0834916" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromSaleOfShortTermInvestments" xlink:label="loc_us-gaap_ProceedsFromSaleOfShortTermInvestments_CE20B2E427B7DC817A5307B8D08311C2" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_E5D857E66C0F0B3A9CFE07B8D0826D15" xlink:to="loc_us-gaap_ProceedsFromSaleOfShortTermInvestments_CE20B2E427B7DC817A5307B8D08311C2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfShorttermInvestments" xlink:label="loc_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfShorttermInvestments_094CB6ACD9DAB1E8E01607B8D08374AE" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_E5D857E66C0F0B3A9CFE07B8D0826D15" xlink:to="loc_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfShorttermInvestments_094CB6ACD9DAB1E8E01607B8D08374AE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsForProceedsFromOtherInvestingActivities" xlink:label="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_90216ADF42AF94B851F007B8D088A0A9" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_E5D857E66C0F0B3A9CFE07B8D0826D15" xlink:to="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_90216ADF42AF94B851F007B8D088A0A9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_CC4B7C854FDD69A8A61207B8D088B6D5" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_E5D857E66C0F0B3A9CFE07B8D0826D15" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_CC4B7C854FDD69A8A61207B8D088B6D5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_7D68916BBAC7BADF366D07B8D0894200" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_8A33FE336DD312BA809607B8D07E8E78" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_7D68916BBAC7BADF366D07B8D0894200" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromIssuanceInitialPublicOffering" xlink:label="loc_us-gaap_ProceedsFromIssuanceInitialPublicOffering_7AEAF9EFE8C87E4DBDFE07B8D08954A0" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_7D68916BBAC7BADF366D07B8D0894200" xlink:to="loc_us-gaap_ProceedsFromIssuanceInitialPublicOffering_7AEAF9EFE8C87E4DBDFE07B8D08954A0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsOfStockIssuanceCosts" xlink:label="loc_us-gaap_PaymentsOfStockIssuanceCosts_79F08DCDB4A3DE981E9907B8D0898727" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_7D68916BBAC7BADF366D07B8D0894200" xlink:to="loc_us-gaap_PaymentsOfStockIssuanceCosts_79F08DCDB4A3DE981E9907B8D0898727" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation" xlink:label="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_5E2767B4020138D3CB0007B8D08937B6" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_7D68916BBAC7BADF366D07B8D0894200" xlink:to="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_5E2767B4020138D3CB0007B8D08937B6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfCommonStock_D746A993B6B9A796D0BB07B8D08953E8" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_7D68916BBAC7BADF366D07B8D0894200" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfCommonStock_D746A993B6B9A796D0BB07B8D08953E8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RepaymentsOfLongTermCapitalLeaseObligations" xlink:label="loc_us-gaap_RepaymentsOfLongTermCapitalLeaseObligations_8BBC70DE5AE2A55DE13807B8D0892B42" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_7D68916BBAC7BADF366D07B8D0894200" xlink:to="loc_us-gaap_RepaymentsOfLongTermCapitalLeaseObligations_8BBC70DE5AE2A55DE13807B8D0892B42" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RepaymentsOfNotesPayable" xlink:label="loc_us-gaap_RepaymentsOfNotesPayable_0A779BD8C66C83BA398807B8D08AF281" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_7D68916BBAC7BADF366D07B8D0894200" xlink:to="loc_us-gaap_RepaymentsOfNotesPayable_0A779BD8C66C83BA398807B8D08AF281" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SaleLeasebackTransactionNetProceedsFinancingActivities" xlink:label="loc_us-gaap_SaleLeasebackTransactionNetProceedsFinancingActivities_DBAE09E106038DC32C9F07B8D08ACF89" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_7D68916BBAC7BADF366D07B8D0894200" xlink:to="loc_us-gaap_SaleLeasebackTransactionNetProceedsFinancingActivities_DBAE09E106038DC32C9F07B8D08ACF89" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsOfFinancingCosts" xlink:label="loc_us-gaap_PaymentsOfFinancingCosts_D208AE70860D814A893E07B8D08A2AD0" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_7D68916BBAC7BADF366D07B8D0894200" xlink:to="loc_us-gaap_PaymentsOfFinancingCosts_D208AE70860D814A893E07B8D08A2AD0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromPaymentsForOtherFinancingActivities" xlink:label="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_221EF60A128904B90A0E07B8D08A6EC5" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_7D68916BBAC7BADF366D07B8D0894200" xlink:to="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_221EF60A128904B90A0E07B8D08A6EC5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_34166FEB80BF09911FA507B8D08AF98B" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_7D68916BBAC7BADF366D07B8D0894200" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_34166FEB80BF09911FA507B8D08AF98B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents" xlink:label="loc_us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents_9D289128C8847C4BDE4B07B8D08A7493" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_8A33FE336DD312BA809607B8D07E8E78" xlink:to="loc_us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents_9D289128C8847C4BDE4B07B8D08A7493" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:label="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_93DD0A7AF2172DF5A17307B8D08B1C20" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_8A33FE336DD312BA809607B8D07E8E78" xlink:to="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_93DD0A7AF2172DF5A17307B8D08B1C20" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_63CC699C9243AC570D3807B8D08BC512" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_8A33FE336DD312BA809607B8D07E8E78" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_63CC699C9243AC570D3807B8D08BC512" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_44DF665E0EA734C5BB0B07B8D08B82E8" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_8A33FE336DD312BA809607B8D07E8E78" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_44DF665E0EA734C5BB0B07B8D08B82E8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SupplementalCashFlowInformationAbstract" xlink:label="loc_us-gaap_SupplementalCashFlowInformationAbstract_B2C4688DDE06B2594AFB07B8D08B7417" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_8A33FE336DD312BA809607B8D07E8E78" xlink:to="loc_us-gaap_SupplementalCashFlowInformationAbstract_B2C4688DDE06B2594AFB07B8D08B7417" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InterestPaidNet" xlink:label="loc_us-gaap_InterestPaidNet_12B143A4559382BA732707B8D08B18B1" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_B2C4688DDE06B2594AFB07B8D08B7417" xlink:to="loc_us-gaap_InterestPaidNet_12B143A4559382BA732707B8D08B18B1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxesPaidNet" xlink:label="loc_us-gaap_IncomeTaxesPaidNet_BECEC8A4637E2BAC05AA07B8D08B8046" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_B2C4688DDE06B2594AFB07B8D08B7417" xlink:to="loc_us-gaap_IncomeTaxesPaidNet_BECEC8A4637E2BAC05AA07B8D08B8046" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract" xlink:label="loc_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_F9878F6EFE3E423015B007B8D08C91DD" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_B2C4688DDE06B2594AFB07B8D08B7417" xlink:to="loc_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_F9878F6EFE3E423015B007B8D08C91DD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CapitalExpendituresIncurredButNotYetPaid" xlink:label="loc_us-gaap_CapitalExpendituresIncurredButNotYetPaid_BB0483F743AA279131A307B8D08C6E0A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_F9878F6EFE3E423015B007B8D08C91DD" xlink:to="loc_us-gaap_CapitalExpendituresIncurredButNotYetPaid_BB0483F743AA279131A307B8D08C6E0A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CapitalLeaseObligationsIncurred" xlink:label="loc_us-gaap_CapitalLeaseObligationsIncurred_87895ED42AEA9DA4024B07B8D08C7AFB" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_F9878F6EFE3E423015B007B8D08C91DD" xlink:to="loc_us-gaap_CapitalLeaseObligationsIncurred_87895ED42AEA9DA4024B07B8D08C7AFB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockIssued1" xlink:label="loc_us-gaap_StockIssued1_695AEE105A856A43B47007B8D08C54A7" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_F9878F6EFE3E423015B007B8D08C91DD" xlink:to="loc_us-gaap_StockIssued1_695AEE105A856A43B47007B8D08C54A7" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_DeferredOfferingCostsIncurredButNotYetPaid" xlink:label="loc_dbx_DeferredOfferingCostsIncurredButNotYetPaid_B56E9A6EF22438ED78D007B8D08C42C1" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_F9878F6EFE3E423015B007B8D08C91DD" xlink:to="loc_dbx_DeferredOfferingCostsIncurredButNotYetPaid_B56E9A6EF22438ED78D007B8D08C42C1" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/ConsolidatedStatementsOfComprehensiveLoss" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract" xlink:label="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_E808D7F387C46716381D07B8D0B850EF" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_0470CA582C40838D45A307B8D0B967FF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_E808D7F387C46716381D07B8D0B850EF" xlink:to="loc_us-gaap_NetIncomeLoss_0470CA582C40838D45A307B8D0B967FF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract_C9451A6FDA61F395175407B8D0B9AD23" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_E808D7F387C46716381D07B8D0B850EF" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract_C9451A6FDA61F395175407B8D0B9AD23" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent" xlink:label="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_8004C43CE90761F0BF2807B8D0B9E71E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract_C9451A6FDA61F395175407B8D0B9AD23" xlink:to="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_8004C43CE90761F0BF2807B8D0B9E71E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent" xlink:label="loc_us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent_A978598CCDFD4A58549E07B8D0B9D2A8" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract_C9451A6FDA61F395175407B8D0B9AD23" xlink:to="loc_us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent_A978598CCDFD4A58549E07B8D0B9D2A8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_F8B5F4A5D5B86AA728A207B8D0BAF2B7" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract_C9451A6FDA61F395175407B8D0B9AD23" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_F8B5F4A5D5B86AA728A207B8D0BAF2B7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_F248486B0BDFBE41956907B8D0BAEC5C" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_E808D7F387C46716381D07B8D0B850EF" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTax_F248486B0BDFBE41956907B8D0BAEC5C" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/ConsolidatedStatementsOfOperations" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeStatementAbstract" xlink:label="loc_us-gaap_IncomeStatementAbstract_79BB11E0153CA3263A2707B8D0DC3A2C" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_398AA2EFB8F8F9CD7B2707B8D0DCD435" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_79BB11E0153CA3263A2707B8D0DC3A2C" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_398AA2EFB8F8F9CD7B2707B8D0DCD435" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CostOfGoodsAndServicesSold" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_1F7F4DFD6C3799566E9307B8D0DC8105" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_79BB11E0153CA3263A2707B8D0DC3A2C" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_1F7F4DFD6C3799566E9307B8D0DC8105" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GrossProfit" xlink:label="loc_us-gaap_GrossProfit_90407DADF66D60FEC18307B8D0DDD2DE" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_79BB11E0153CA3263A2707B8D0DC3A2C" xlink:to="loc_us-gaap_GrossProfit_90407DADF66D60FEC18307B8D0DDD2DE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingExpensesAbstract" xlink:label="loc_us-gaap_OperatingExpensesAbstract_ADEA2ADA79A7CA44E49507B8D0DD819E" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_79BB11E0153CA3263A2707B8D0DC3A2C" xlink:to="loc_us-gaap_OperatingExpensesAbstract_ADEA2ADA79A7CA44E49507B8D0DD819E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ResearchAndDevelopmentExpense" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpense_310389A3171A9FBC26EB07B8D0DD918A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingExpensesAbstract_ADEA2ADA79A7CA44E49507B8D0DD819E" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpense_310389A3171A9FBC26EB07B8D0DD918A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SellingAndMarketingExpense" xlink:label="loc_us-gaap_SellingAndMarketingExpense_30D7A4F07DEB9C4902A307B8D0DDB3FA" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingExpensesAbstract_ADEA2ADA79A7CA44E49507B8D0DD819E" xlink:to="loc_us-gaap_SellingAndMarketingExpense_30D7A4F07DEB9C4902A307B8D0DDB3FA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GeneralAndAdministrativeExpense" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_2C28A5A146809DA66E9107B8D0DD021D" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingExpensesAbstract_ADEA2ADA79A7CA44E49507B8D0DD819E" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_2C28A5A146809DA66E9107B8D0DD021D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingExpenses" xlink:label="loc_us-gaap_OperatingExpenses_3A3248900C9BEA02F66A07B8D0DE5450" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingExpensesAbstract_ADEA2ADA79A7CA44E49507B8D0DD819E" xlink:to="loc_us-gaap_OperatingExpenses_3A3248900C9BEA02F66A07B8D0DE5450" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaap_OperatingIncomeLoss_E5829E1C7C6BB2EB631207B8D0DEA366" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_79BB11E0153CA3263A2707B8D0DC3A2C" xlink:to="loc_us-gaap_OperatingIncomeLoss_E5829E1C7C6BB2EB631207B8D0DEA366" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InterestIncomeExpenseNonoperatingNet" xlink:label="loc_us-gaap_InterestIncomeExpenseNonoperatingNet_8A2ECC80C99067014ED407B8D0DE737D" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_79BB11E0153CA3263A2707B8D0DC3A2C" xlink:to="loc_us-gaap_InterestIncomeExpenseNonoperatingNet_8A2ECC80C99067014ED407B8D0DE737D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_23C734C8A3D6670C5CDB07B8D0DE2C01" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_79BB11E0153CA3263A2707B8D0DC3A2C" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_23C734C8A3D6670C5CDB07B8D0DE2C01" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_85159C2F95250262FB4107B8D0DE40D5" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_79BB11E0153CA3263A2707B8D0DC3A2C" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_85159C2F95250262FB4107B8D0DE40D5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_E680A6F895C85AC9653507B8D0DE7883" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_79BB11E0153CA3263A2707B8D0DC3A2C" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_E680A6F895C85AC9653507B8D0DE7883" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_D9975056AB00AEEE06D207B8D0DE9987" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_79BB11E0153CA3263A2707B8D0DC3A2C" xlink:to="loc_us-gaap_NetIncomeLoss_D9975056AB00AEEE06D207B8D0DE9987" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EarningsPerShareBasicAndDiluted" xlink:label="loc_us-gaap_EarningsPerShareBasicAndDiluted_917D204533AD57DF228007B8D0DFF177" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_79BB11E0153CA3263A2707B8D0DC3A2C" xlink:to="loc_us-gaap_EarningsPerShareBasicAndDiluted_917D204533AD57DF228007B8D0DFF177" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted" xlink:label="loc_us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted_BBA82B4B989EE9C2BABF07B8D0DF0230" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_79BB11E0153CA3263A2707B8D0DC3A2C" xlink:to="loc_us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted_BBA82B4B989EE9C2BABF07B8D0DF0230" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/ConsolidatedStatementsOfOperationsParenthetical" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeStatementAbstract" xlink:label="loc_us-gaap_IncomeStatementAbstract_16606FDDEA4A6333D1E207B8D0C871B4" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_0A89CFF7309E4E4E6B5D07B8D0C8D939" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_16606FDDEA4A6333D1E207B8D0C871B4" xlink:to="loc_us-gaap_StatementTable_0A89CFF7309E4E4E6B5D07B8D0C8D939" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeStatementLocationAxis" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_6DAFE31BCEEDAB94B40807B8D0C98251" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_0A89CFF7309E4E4E6B5D07B8D0C8D939" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_6DAFE31BCEEDAB94B40807B8D0C98251" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_7A3EC033847E5893914507B8D0C968FE" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_6DAFE31BCEEDAB94B40807B8D0C98251" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_7A3EC033847E5893914507B8D0C968FE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CostOfSalesMember" xlink:label="loc_us-gaap_CostOfSalesMember_77BA8F77218836F48A6007B8D0C9160E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_7A3EC033847E5893914507B8D0C968FE" xlink:to="loc_us-gaap_CostOfSalesMember_77BA8F77218836F48A6007B8D0C9160E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ResearchAndDevelopmentExpenseMember" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpenseMember_FF9475DFED54A874E1C607B8D0C91014" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_7A3EC033847E5893914507B8D0C968FE" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpenseMember_FF9475DFED54A874E1C607B8D0C91014" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SellingAndMarketingExpenseMember" xlink:label="loc_us-gaap_SellingAndMarketingExpenseMember_43C8AD5296157B3CFAB607B8D0C9778F" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_7A3EC033847E5893914507B8D0C968FE" xlink:to="loc_us-gaap_SellingAndMarketingExpenseMember_43C8AD5296157B3CFAB607B8D0C9778F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GeneralAndAdministrativeExpenseMember" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpenseMember_371520C2CC83B860250207B8D0CAAA15" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_7A3EC033847E5893914507B8D0C968FE" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpenseMember_371520C2CC83B860250207B8D0CAAA15" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_F1C0672C1A6DBC52BAC507B8D0CAD5BC" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_0A89CFF7309E4E4E6B5D07B8D0C8D939" xlink:to="loc_us-gaap_AwardTypeAxis_F1C0672C1A6DBC52BAC507B8D0CAD5BC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_D4263152190A5092CF4707B8D0CA6F49" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_F1C0672C1A6DBC52BAC507B8D0CAD5BC" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_D4263152190A5092CF4707B8D0CA6F49" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_TwoTierRestrictedStockUnitsRSUsMember" xlink:label="loc_dbx_TwoTierRestrictedStockUnitsRSUsMember_DC99C49AA33AF2E9379607B8D0CABE4A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_D4263152190A5092CF4707B8D0CA6F49" xlink:to="loc_dbx_TwoTierRestrictedStockUnitsRSUsMember_DC99C49AA33AF2E9379607B8D0CABE4A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_4473C771D8A05DFB479007B8D0CA796F" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_0A89CFF7309E4E4E6B5D07B8D0C8D939" xlink:to="loc_us-gaap_StatementLineItems_4473C771D8A05DFB479007B8D0CA796F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AllocatedShareBasedCompensationExpense" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_4AB445B11967869E14D707B8D0CBCCD2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_4473C771D8A05DFB479007B8D0CA796F" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_4AB445B11967869E14D707B8D0CBCCD2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAcceleratedCompensationCost" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAcceleratedCompensationCost_37ADA8547E8249AC572D07B8D0CBB9F7" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_4473C771D8A05DFB479007B8D0CA796F" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAcceleratedCompensationCost_37ADA8547E8249AC572D07B8D0CBB9F7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NoncashContributionExpense" xlink:label="loc_us-gaap_NoncashContributionExpense_65245D09014C6000BF6F07B8D0CB8104" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_4473C771D8A05DFB479007B8D0CA796F" xlink:to="loc_us-gaap_NoncashContributionExpense_65245D09014C6000BF6F07B8D0CB8104" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_CashContributionsToCharitableFoundation" xlink:label="loc_dbx_CashContributionsToCharitableFoundation_234CF768BBC2048ABE9707B8D0CB642E" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_4473C771D8A05DFB479007B8D0CA796F" xlink:to="loc_dbx_CashContributionsToCharitableFoundation_234CF768BBC2048ABE9707B8D0CB642E" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/ConsolidatedStatementsOfStockholdersEquity" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementOfStockholdersEquityAbstract" xlink:label="loc_us-gaap_StatementOfStockholdersEquityAbstract_98A7CD2227C6C3BB436107B8D0A1DF95" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_DBD5CD747C58CAD3161D07B8D0A7AA50" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfStockholdersEquityAbstract_98A7CD2227C6C3BB436107B8D0A1DF95" xlink:to="loc_us-gaap_StatementTable_DBD5CD747C58CAD3161D07B8D0A7AA50" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_99BD0A4999236083111C07B8D0A7AC44" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_DBD5CD747C58CAD3161D07B8D0A7AA50" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_99BD0A4999236083111C07B8D0A7AC44" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_0A3F53D668DE6A2B16D907B8D0A732EA" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_99BD0A4999236083111C07B8D0A7AC44" xlink:to="loc_us-gaap_EquityComponentDomain_0A3F53D668DE6A2B16D907B8D0A732EA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PreferredStockMember" xlink:label="loc_us-gaap_PreferredStockMember_391EA1EC7D57FB290FA307B8D0A74CB6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_0A3F53D668DE6A2B16D907B8D0A732EA" xlink:to="loc_us-gaap_PreferredStockMember_391EA1EC7D57FB290FA307B8D0A74CB6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaap_CommonStockMember_E9B9C77E940F492EFB7307B8D0A8F605" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_0A3F53D668DE6A2B16D907B8D0A732EA" xlink:to="loc_us-gaap_CommonStockMember_E9B9C77E940F492EFB7307B8D0A8F605" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_96EDD9224752CD35C0AA07B8D0A87076" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_0A3F53D668DE6A2B16D907B8D0A732EA" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_96EDD9224752CD35C0AA07B8D0A87076" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RetainedEarningsMember" xlink:label="loc_us-gaap_RetainedEarningsMember_C160CB1FBE0535A9B49207B8D0A81F3A" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_0A3F53D668DE6A2B16D907B8D0A732EA" xlink:to="loc_us-gaap_RetainedEarningsMember_C160CB1FBE0535A9B49207B8D0A81F3A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_F37D62268B4E3449876107B8D0A8C2C5" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_0A3F53D668DE6A2B16D907B8D0A732EA" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_F37D62268B4E3449876107B8D0A8C2C5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_D61B2D32FE91744D994F07B8D0A8CF41" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_DBD5CD747C58CAD3161D07B8D0A7AA50" xlink:to="loc_us-gaap_StatementLineItems_D61B2D32FE91744D994F07B8D0A8CF41" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A41D2ABA439E6A765B7C07B8D0A90ECE" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_D61B2D32FE91744D994F07B8D0A8CF41" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A41D2ABA439E6A765B7C07B8D0A90ECE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SharesOutstanding" xlink:label="loc_us-gaap_SharesOutstanding_FCA24F44C7F59BDDC54407B8D0A9DF3D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A41D2ABA439E6A765B7C07B8D0A90ECE" xlink:to="loc_us-gaap_SharesOutstanding_FCA24F44C7F59BDDC54407B8D0A9DF3D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_E38535C1A6A9C72D4ADC07B8D0A990F0" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A41D2ABA439E6A765B7C07B8D0A90ECE" xlink:to="loc_us-gaap_StockholdersEquity_E38535C1A6A9C72D4ADC07B8D0A990F0" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_StockIssuedDuringPeriodValueVestingOfEarlyExercisedStockOptions" xlink:label="loc_dbx_StockIssuedDuringPeriodValueVestingOfEarlyExercisedStockOptions_E06FBEA681AFA4B75BEE07B8D0A9912B" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A41D2ABA439E6A765B7C07B8D0A90ECE" xlink:to="loc_dbx_StockIssuedDuringPeriodValueVestingOfEarlyExercisedStockOptions_E06FBEA681AFA4B75BEE07B8D0A9912B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesAcquisitions" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesAcquisitions_92E76C4252CF4F33F16C07B8D0A934AE" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A41D2ABA439E6A765B7C07B8D0A90ECE" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesAcquisitions_92E76C4252CF4F33F16C07B8D0A934AE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueAcquisitions" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueAcquisitions_88BB5C7465D7C1EB607D07B8D0AA2CA6" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A41D2ABA439E6A765B7C07B8D0A90ECE" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueAcquisitions_88BB5C7465D7C1EB607D07B8D0AA2CA6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption" xlink:label="loc_us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption_67210DAB1A8628BC1E7A07B8D0AA87AB" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A41D2ABA439E6A765B7C07B8D0A90ECE" xlink:to="loc_us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption_67210DAB1A8628BC1E7A07B8D0AA87AB" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_SharesReleasedDuringPeriodShares" xlink:label="loc_dbx_SharesReleasedDuringPeriodShares_5CD900BC43530597DC2807B8D0AA0B16" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A41D2ABA439E6A765B7C07B8D0A90ECE" xlink:to="loc_dbx_SharesReleasedDuringPeriodShares_5CD900BC43530597DC2807B8D0AA0B16" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation" xlink:label="loc_us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation_75BF2F73D41A2B15858607B8D0AA985E" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A41D2ABA439E6A765B7C07B8D0A90ECE" xlink:to="loc_us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation_75BF2F73D41A2B15858607B8D0AA985E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation" xlink:label="loc_us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation_4FE299B8474BBD0554E707B8D0AA28FB" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A41D2ABA439E6A765B7C07B8D0A90ECE" xlink:to="loc_us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation_4FE299B8474BBD0554E707B8D0AA28FB" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_StockIssuedDuringPeriodSharesCharitableFoundationDonation" xlink:label="loc_dbx_StockIssuedDuringPeriodSharesCharitableFoundationDonation_545299E726E029B5A47D07B8D0AA2511" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A41D2ABA439E6A765B7C07B8D0A90ECE" xlink:to="loc_dbx_StockIssuedDuringPeriodSharesCharitableFoundationDonation_545299E726E029B5A47D07B8D0AA2511" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_StockIssuedDuringPeriodValueCharitableFoundationDonation" xlink:label="loc_dbx_StockIssuedDuringPeriodValueCharitableFoundationDonation_EB8CA5274ED18B62E40107B8D0AB5471" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A41D2ABA439E6A765B7C07B8D0A90ECE" xlink:to="loc_dbx_StockIssuedDuringPeriodValueCharitableFoundationDonation_EB8CA5274ED18B62E40107B8D0AB5471" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities_2FB5F9B328C725D2E6BA07B8D0AB295C" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A41D2ABA439E6A765B7C07B8D0A90ECE" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities_2FB5F9B328C725D2E6BA07B8D0AB295C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities_E65EB0B2F05220F83AE607B8D0ABCC86" xlink:type="locator" />
    <link:presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A41D2ABA439E6A765B7C07B8D0A90ECE" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities_E65EB0B2F05220F83AE607B8D0ABCC86" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_BD98BB87832F6CDCEBCA07B8D0ABC001" xlink:type="locator" />
    <link:presentationArc order="14" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A41D2ABA439E6A765B7C07B8D0A90ECE" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_BD98BB87832F6CDCEBCA07B8D0ABC001" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues_95241041AE69C650D5BC07B8D0AB791E" xlink:type="locator" />
    <link:presentationArc order="15" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A41D2ABA439E6A765B7C07B8D0A90ECE" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues_95241041AE69C650D5BC07B8D0AB791E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_2BBE8DBC05AF347AB63207B8D0AB5F54" xlink:type="locator" />
    <link:presentationArc order="16" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A41D2ABA439E6A765B7C07B8D0A90ECE" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_2BBE8DBC05AF347AB63207B8D0AB5F54" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised_5730A902947CBD0678B707B8D0AB0D1F" xlink:type="locator" />
    <link:presentationArc order="17" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A41D2ABA439E6A765B7C07B8D0A90ECE" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised_5730A902947CBD0678B707B8D0AB0D1F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockRepurchasedDuringPeriodShares" xlink:label="loc_us-gaap_StockRepurchasedDuringPeriodShares_5A55D95512FF88F59D1307B8D0ACD010" xlink:type="locator" />
    <link:presentationArc order="18" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A41D2ABA439E6A765B7C07B8D0A90ECE" xlink:to="loc_us-gaap_StockRepurchasedDuringPeriodShares_5A55D95512FF88F59D1307B8D0ACD010" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockRepurchasedDuringPeriodValue" xlink:label="loc_us-gaap_StockRepurchasedDuringPeriodValue_7263062746E757F34A0B07B8D0AC45FF" xlink:type="locator" />
    <link:presentationArc order="19" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A41D2ABA439E6A765B7C07B8D0A90ECE" xlink:to="loc_us-gaap_StockRepurchasedDuringPeriodValue_7263062746E757F34A0B07B8D0AC45FF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_E04F067EB2DC9C9FBF9307B8D0AC6140" xlink:type="locator" />
    <link:presentationArc order="20" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A41D2ABA439E6A765B7C07B8D0A90ECE" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_E04F067EB2DC9C9FBF9307B8D0AC6140" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_9708F1CBDE1A28EE35BE07B8D0ACCE16" xlink:type="locator" />
    <link:presentationArc order="21" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A41D2ABA439E6A765B7C07B8D0A90ECE" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_9708F1CBDE1A28EE35BE07B8D0ACCE16" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_A9B9F175216D3418D46907B8D0AC0C43" xlink:type="locator" />
    <link:presentationArc order="22" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A41D2ABA439E6A765B7C07B8D0A90ECE" xlink:to="loc_us-gaap_NetIncomeLoss_A9B9F175216D3418D46907B8D0AC0C43" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_D002595382061D04A31007B8D0AC7CE1" xlink:type="locator" />
    <link:presentationArc order="23" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A41D2ABA439E6A765B7C07B8D0A90ECE" xlink:to="loc_us-gaap_StockholdersEquity_D002595382061D04A31007B8D0AC7CE1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SharesOutstanding" xlink:label="loc_us-gaap_SharesOutstanding_391ECB1A9B838BA1C81207B8D0ADFD0C" xlink:type="locator" />
    <link:presentationArc order="24" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A41D2ABA439E6A765B7C07B8D0A90ECE" xlink:to="loc_us-gaap_SharesOutstanding_391ECB1A9B838BA1C81207B8D0ADFD0C" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/DescriptionOfBusinessAndSummaryOfSignificantAccountingPolicies" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_0140332B85CC2331BFA407B8D05C0C8A" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureAndSignificantAccountingPoliciesTextBlock" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureAndSignificantAccountingPoliciesTextBlock_E06A38BA0A0772EE219007B8D05CCD7A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_0140332B85CC2331BFA407B8D05C0C8A" xlink:to="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureAndSignificantAccountingPoliciesTextBlock_E06A38BA0A0772EE219007B8D05CCD7A" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesAdvertisingAndPromotionalExpenseDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_54D2D7E1C922C01EFAD507B8D02EDFD1" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_MarketingAndAdvertisingExpense" xlink:label="loc_us-gaap_MarketingAndAdvertisingExpense_63E5E3AB027210F0E46807B8D02E92E5" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_54D2D7E1C922C01EFAD507B8D02EDFD1" xlink:to="loc_us-gaap_MarketingAndAdvertisingExpense_63E5E3AB027210F0E46807B8D02E92E5" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesConcentrationsOfCreditRiskDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_0A698533C5B5AD8B0D5707B8D0262A0C" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConcentrationRiskTable" xlink:label="loc_us-gaap_ConcentrationRiskTable_A6F0E67BB8864B35CE0B07B8D027985D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_0A698533C5B5AD8B0D5707B8D0262A0C" xlink:to="loc_us-gaap_ConcentrationRiskTable_A6F0E67BB8864B35CE0B07B8D027985D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConcentrationRiskByTypeAxis" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis_C8CA2F67BD9C15CB565507B8D02706C8" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskTable_A6F0E67BB8864B35CE0B07B8D027985D" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_C8CA2F67BD9C15CB565507B8D02706C8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConcentrationRiskTypeDomain" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_DF52AD595B2D13844D5007B8D027DAE9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_C8CA2F67BD9C15CB565507B8D02706C8" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_DF52AD595B2D13844D5007B8D027DAE9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CustomerConcentrationRiskMember" xlink:label="loc_us-gaap_CustomerConcentrationRiskMember_BBFB267D9EEC100D711207B8D0272BF6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_DF52AD595B2D13844D5007B8D027DAE9" xlink:to="loc_us-gaap_CustomerConcentrationRiskMember_BBFB267D9EEC100D711207B8D0272BF6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis" xlink:label="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_0D2F99B0921E8253791C07B8D0281A48" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskTable_A6F0E67BB8864B35CE0B07B8D027985D" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_0D2F99B0921E8253791C07B8D0281A48" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConcentrationRiskBenchmarkDomain" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_A6D29125AC7D7C952AFA07B8D02890F0" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_0D2F99B0921E8253791C07B8D0281A48" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_A6D29125AC7D7C952AFA07B8D02890F0" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_AccountsReceivableAndOtherReceivableMember" xlink:label="loc_dbx_AccountsReceivableAndOtherReceivableMember_3B0BDFBE7745970FF63207B8D028E4CB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_A6D29125AC7D7C952AFA07B8D02890F0" xlink:to="loc_dbx_AccountsReceivableAndOtherReceivableMember_3B0BDFBE7745970FF63207B8D028E4CB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_MajorCustomersAxis" xlink:label="loc_srt_MajorCustomersAxis_E19E86721AA5F36EF2AB07B8D028FCC0" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskTable_A6F0E67BB8864B35CE0B07B8D027985D" xlink:to="loc_srt_MajorCustomersAxis_E19E86721AA5F36EF2AB07B8D028FCC0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_NameOfMajorCustomerDomain" xlink:label="loc_srt_NameOfMajorCustomerDomain_5A18E968FA648BBA5B8807B8D02981A0" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_MajorCustomersAxis_E19E86721AA5F36EF2AB07B8D028FCC0" xlink:to="loc_srt_NameOfMajorCustomerDomain_5A18E968FA648BBA5B8807B8D02981A0" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_CustomerAMember" xlink:label="loc_dbx_CustomerAMember_860BF18912353217E0F707B8D029C0BF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_NameOfMajorCustomerDomain_5A18E968FA648BBA5B8807B8D02981A0" xlink:to="loc_dbx_CustomerAMember_860BF18912353217E0F707B8D029C0BF" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_CustomerBMember" xlink:label="loc_dbx_CustomerBMember_3FC17C00755E24ADF29007B8D0299E17" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_NameOfMajorCustomerDomain_5A18E968FA648BBA5B8807B8D02981A0" xlink:to="loc_dbx_CustomerBMember_3FC17C00755E24ADF29007B8D0299E17" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConcentrationRiskLineItems" xlink:label="loc_us-gaap_ConcentrationRiskLineItems_37A0AC4DD62D6E3DB34207B8D029D17E" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskTable_A6F0E67BB8864B35CE0B07B8D027985D" xlink:to="loc_us-gaap_ConcentrationRiskLineItems_37A0AC4DD62D6E3DB34207B8D029D17E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConcentrationRiskPercentage1" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_4F3AE2CFCC8CF7E2A08A07B8D02998B8" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskLineItems_37A0AC4DD62D6E3DB34207B8D029D17E" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_4F3AE2CFCC8CF7E2A08A07B8D02998B8" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesDeferredCommissionsNetDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_E2AC5A0E62255F2CA90907B8D01E41C6" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CapitalizedContractCostTable" xlink:label="loc_us-gaap_CapitalizedContractCostTable_D7BE49985AFBBD4FBDA607B8D01E2A1C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_E2AC5A0E62255F2CA90907B8D01E41C6" xlink:to="loc_us-gaap_CapitalizedContractCostTable_D7BE49985AFBBD4FBDA607B8D01E2A1C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BalanceSheetLocationAxis" xlink:label="loc_us-gaap_BalanceSheetLocationAxis_4A8ADFB8254D93BE5B9407B8D01E85ED" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalizedContractCostTable_D7BE49985AFBBD4FBDA607B8D01E2A1C" xlink:to="loc_us-gaap_BalanceSheetLocationAxis_4A8ADFB8254D93BE5B9407B8D01E85ED" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BalanceSheetLocationDomain" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_CB45D2B1B9EF4FC458A207B8D01E14F0" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_4A8ADFB8254D93BE5B9407B8D01E85ED" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_CB45D2B1B9EF4FC458A207B8D01E14F0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember" xlink:label="loc_us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember_4506E1A0838597A2B97307B8D01F8706" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_CB45D2B1B9EF4FC458A207B8D01E14F0" xlink:to="loc_us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember_4506E1A0838597A2B97307B8D01F8706" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherNoncurrentAssetsMember" xlink:label="loc_us-gaap_OtherNoncurrentAssetsMember_0AFA02CE56475F8B56BB07B8D01FD59B" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_CB45D2B1B9EF4FC458A207B8D01E14F0" xlink:to="loc_us-gaap_OtherNoncurrentAssetsMember_0AFA02CE56475F8B56BB07B8D01FD59B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CapitalizedContractCostAxis" xlink:label="loc_us-gaap_CapitalizedContractCostAxis_87DB35EAF62131427E5A07B8D01FF117" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalizedContractCostTable_D7BE49985AFBBD4FBDA607B8D01E2A1C" xlink:to="loc_us-gaap_CapitalizedContractCostAxis_87DB35EAF62131427E5A07B8D01FF117" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CapitalizedContractCostDomain" xlink:label="loc_us-gaap_CapitalizedContractCostDomain_F48325EBFDCCC93B850607B8D01F0986" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalizedContractCostAxis_87DB35EAF62131427E5A07B8D01FF117" xlink:to="loc_us-gaap_CapitalizedContractCostDomain_F48325EBFDCCC93B850607B8D01F0986" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_DeferredCommissionsMember" xlink:label="loc_dbx_DeferredCommissionsMember_9419E232B29DC864BF4707B8D01FC534" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalizedContractCostDomain_F48325EBFDCCC93B850607B8D01F0986" xlink:to="loc_dbx_DeferredCommissionsMember_9419E232B29DC864BF4707B8D01FC534" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CapitalizedContractCostLineItems" xlink:label="loc_us-gaap_CapitalizedContractCostLineItems_839CFBC0DA686C57E14207B8D020BC1B" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalizedContractCostTable_D7BE49985AFBBD4FBDA607B8D01E2A1C" xlink:to="loc_us-gaap_CapitalizedContractCostLineItems_839CFBC0DA686C57E14207B8D020BC1B" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_CapitalizedContractCostsAdditions" xlink:label="loc_dbx_CapitalizedContractCostsAdditions_546B44F1EFA2A0C65E1507B8D0209F2F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalizedContractCostLineItems_839CFBC0DA686C57E14207B8D020BC1B" xlink:to="loc_dbx_CapitalizedContractCostsAdditions_546B44F1EFA2A0C65E1507B8D0209F2F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CapitalizedContractCostNet" xlink:label="loc_us-gaap_CapitalizedContractCostNet_93D9D914E20B8EC7FF0A07B8D0200514" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalizedContractCostLineItems_839CFBC0DA686C57E14207B8D020BC1B" xlink:to="loc_us-gaap_CapitalizedContractCostNet_93D9D914E20B8EC7FF0A07B8D0200514" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CapitalizedContractCostAmortizationPeriod" xlink:label="loc_us-gaap_CapitalizedContractCostAmortizationPeriod_D36A1EAF90BD4288B0CF07B8D020B746" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalizedContractCostLineItems_839CFBC0DA686C57E14207B8D020BC1B" xlink:to="loc_us-gaap_CapitalizedContractCostAmortizationPeriod_D36A1EAF90BD4288B0CF07B8D020B746" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AmortizationOfDeferredSalesCommissions" xlink:label="loc_us-gaap_AmortizationOfDeferredSalesCommissions_E8BF48189AD8E911614407B8D0212722" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalizedContractCostLineItems_839CFBC0DA686C57E14207B8D020BC1B" xlink:to="loc_us-gaap_AmortizationOfDeferredSalesCommissions_E8BF48189AD8E911614407B8D0212722" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CapitalizedContractCostImpairmentLoss" xlink:label="loc_us-gaap_CapitalizedContractCostImpairmentLoss_9597B31C77FC9614AB5D07B8D021E106" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalizedContractCostLineItems_839CFBC0DA686C57E14207B8D020BC1B" xlink:to="loc_us-gaap_CapitalizedContractCostImpairmentLoss_9597B31C77FC9614AB5D07B8D021E106" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesDeferredOfferingCostsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_C914699C99A6DB866F4507B8D00DF8AB" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredOfferingCosts" xlink:label="loc_us-gaap_DeferredOfferingCosts_4B89D1FF89EF12840BBF07B8D00D618F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_C914699C99A6DB866F4507B8D00DF8AB" xlink:to="loc_us-gaap_DeferredOfferingCosts_4B89D1FF89EF12840BBF07B8D00D618F" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesForeignCurrencyTransactionsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_FCF8C84C056DD1A3B58207B8D04058B6" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ForeignCurrencyTransactionGainLossBeforeTax" xlink:label="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_2EF3DF4BB6F50372330D07B8D0419A68" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_FCF8C84C056DD1A3B58207B8D04058B6" xlink:to="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_2EF3DF4BB6F50372330D07B8D0419A68" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesInitialPublicOfferingAndPrivatePlacementDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_0BF8CA893C9D8F1AA98507B8D0455357" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConversionOfStockTable" xlink:label="loc_us-gaap_ConversionOfStockTable_7271A4EF5890173ABF8F07B8D046BC34" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_0BF8CA893C9D8F1AA98507B8D0455357" xlink:to="loc_us-gaap_ConversionOfStockTable_7271A4EF5890173ABF8F07B8D046BC34" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_B172AB69E9896B96051B07B8D0463598" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConversionOfStockTable_7271A4EF5890173ABF8F07B8D046BC34" xlink:to="loc_us-gaap_AwardTypeAxis_B172AB69E9896B96051B07B8D0463598" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_FD9CC7C0A19FDB62EA6A07B8D046AFBD" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_B172AB69E9896B96051B07B8D0463598" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_FD9CC7C0A19FDB62EA6A07B8D046AFBD" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_TwoTierRestrictedStockUnitsRSUsMember" xlink:label="loc_dbx_TwoTierRestrictedStockUnitsRSUsMember_216CBC9EF5D3EC47825707B8D0470603" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_FD9CC7C0A19FDB62EA6A07B8D046AFBD" xlink:to="loc_dbx_TwoTierRestrictedStockUnitsRSUsMember_216CBC9EF5D3EC47825707B8D0470603" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SubsidiarySaleOfStockAxis" xlink:label="loc_us-gaap_SubsidiarySaleOfStockAxis_4F2D6B1A5EFE4A56626007B8D04733A4" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConversionOfStockTable_7271A4EF5890173ABF8F07B8D046BC34" xlink:to="loc_us-gaap_SubsidiarySaleOfStockAxis_4F2D6B1A5EFE4A56626007B8D04733A4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SaleOfStockNameOfTransactionDomain" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_DDF05EA9ACA778D7A83E07B8D0474455" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_4F2D6B1A5EFE4A56626007B8D04733A4" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_DDF05EA9ACA778D7A83E07B8D0474455" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PrivatePlacementMember" xlink:label="loc_us-gaap_PrivatePlacementMember_339CCE3AD85C5FAF622E07B8D04758AD" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_DDF05EA9ACA778D7A83E07B8D0474455" xlink:to="loc_us-gaap_PrivatePlacementMember_339CCE3AD85C5FAF622E07B8D04758AD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OverAllotmentOptionMember" xlink:label="loc_us-gaap_OverAllotmentOptionMember_AA72C234CBBA312A209507B8D0473636" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_DDF05EA9ACA778D7A83E07B8D0474455" xlink:to="loc_us-gaap_OverAllotmentOptionMember_AA72C234CBBA312A209507B8D0473636" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_FF013110E3AF747F7DCB07B8D048F599" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConversionOfStockTable_7271A4EF5890173ABF8F07B8D046BC34" xlink:to="loc_us-gaap_StatementClassOfStockAxis_FF013110E3AF747F7DCB07B8D048F599" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_95F1CC0168677052CAFA07B8D0488F99" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementClassOfStockAxis_FF013110E3AF747F7DCB07B8D048F599" xlink:to="loc_us-gaap_ClassOfStockDomain_95F1CC0168677052CAFA07B8D0488F99" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConvertiblePreferredStockMember" xlink:label="loc_us-gaap_ConvertiblePreferredStockMember_D2518ECA0A00DFCDA20B07B8D048E379" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_95F1CC0168677052CAFA07B8D0488F99" xlink:to="loc_us-gaap_ConvertiblePreferredStockMember_D2518ECA0A00DFCDA20B07B8D048E379" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonClassBMember" xlink:label="loc_us-gaap_CommonClassBMember_53BB6AFFC6F11E3901A807B8D048A997" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_95F1CC0168677052CAFA07B8D0488F99" xlink:to="loc_us-gaap_CommonClassBMember_53BB6AFFC6F11E3901A807B8D048A997" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonClassAMember" xlink:label="loc_us-gaap_CommonClassAMember_02D1AE55B59EC9EFC82007B8D048E7A4" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_95F1CC0168677052CAFA07B8D0488F99" xlink:to="loc_us-gaap_CommonClassAMember_02D1AE55B59EC9EFC82007B8D048E7A4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConversionOfStockByUniqueDescriptionAxis" xlink:label="loc_us-gaap_ConversionOfStockByUniqueDescriptionAxis_0445ED0B386F0B0176CB07B8D0493411" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConversionOfStockTable_7271A4EF5890173ABF8F07B8D046BC34" xlink:to="loc_us-gaap_ConversionOfStockByUniqueDescriptionAxis_0445ED0B386F0B0176CB07B8D0493411" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConversionOfStockNameDomain" xlink:label="loc_us-gaap_ConversionOfStockNameDomain_AD1F596AEAFAD56796E407B8D049762D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConversionOfStockByUniqueDescriptionAxis_0445ED0B386F0B0176CB07B8D0493411" xlink:to="loc_us-gaap_ConversionOfStockNameDomain_AD1F596AEAFAD56796E407B8D049762D" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_ConversionOfConvertiblePreferredStockToClassBCommonStockMember" xlink:label="loc_dbx_ConversionOfConvertiblePreferredStockToClassBCommonStockMember_79810B29C59D49F2CC5607B8D0490ABE" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConversionOfStockNameDomain_AD1F596AEAFAD56796E407B8D049762D" xlink:to="loc_dbx_ConversionOfConvertiblePreferredStockToClassBCommonStockMember_79810B29C59D49F2CC5607B8D0490ABE" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_ConversionOfConvertiblePreferredStockToClassACommonStockMember" xlink:label="loc_dbx_ConversionOfConvertiblePreferredStockToClassACommonStockMember_D23ECF580B55E85DC4A207B8D049D2C2" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConversionOfStockNameDomain_AD1F596AEAFAD56796E407B8D049762D" xlink:to="loc_dbx_ConversionOfConvertiblePreferredStockToClassACommonStockMember_D23ECF580B55E85DC4A207B8D049D2C2" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_ConversionOfClassBCommonStockToClassACommonStockMember" xlink:label="loc_dbx_ConversionOfClassBCommonStockToClassACommonStockMember_F366E7829127718B568707B8D049445E" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConversionOfStockNameDomain_AD1F596AEAFAD56796E407B8D049762D" xlink:to="loc_dbx_ConversionOfClassBCommonStockToClassACommonStockMember_F366E7829127718B568707B8D049445E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConversionOfStockLineItems" xlink:label="loc_us-gaap_ConversionOfStockLineItems_6DD2ACBBD1C4B45FEB1007B8D04ABFFA" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConversionOfStockTable_7271A4EF5890173ABF8F07B8D046BC34" xlink:to="loc_us-gaap_ConversionOfStockLineItems_6DD2ACBBD1C4B45FEB1007B8D04ABFFA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockholdersEquityNoteStockSplitConversionRatio1" xlink:label="loc_us-gaap_StockholdersEquityNoteStockSplitConversionRatio1_AE37D20320E86856DA4F07B8D04A7E14" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConversionOfStockLineItems_6DD2ACBBD1C4B45FEB1007B8D04ABFFA" xlink:to="loc_us-gaap_StockholdersEquityNoteStockSplitConversionRatio1_AE37D20320E86856DA4F07B8D04A7E14" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_7A0EF15DB9DFFFFB419B07B8D04A7BB2" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConversionOfStockLineItems_6DD2ACBBD1C4B45FEB1007B8D04ABFFA" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_7A0EF15DB9DFFFFB419B07B8D04A7BB2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SharesIssuedPricePerShare" xlink:label="loc_us-gaap_SharesIssuedPricePerShare_D5C240C2318A3CEBEB2E07B8D04ABE6E" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConversionOfStockLineItems_6DD2ACBBD1C4B45FEB1007B8D04ABFFA" xlink:to="loc_us-gaap_SharesIssuedPricePerShare_D5C240C2318A3CEBEB2E07B8D04ABE6E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromIssuanceInitialPublicOffering" xlink:label="loc_us-gaap_ProceedsFromIssuanceInitialPublicOffering_9C84BAD2DD7879063A1307B8D04AFEAF" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConversionOfStockLineItems_6DD2ACBBD1C4B45FEB1007B8D04ABFFA" xlink:to="loc_us-gaap_ProceedsFromIssuanceInitialPublicOffering_9C84BAD2DD7879063A1307B8D04AFEAF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsOfStockIssuanceCosts" xlink:label="loc_us-gaap_PaymentsOfStockIssuanceCosts_15FCE74BD462CAE6BA8707B8D04AD81E" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConversionOfStockLineItems_6DD2ACBBD1C4B45FEB1007B8D04ABFFA" xlink:to="loc_us-gaap_PaymentsOfStockIssuanceCosts_15FCE74BD462CAE6BA8707B8D04AD81E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConversionOfStockSharesConverted1" xlink:label="loc_us-gaap_ConversionOfStockSharesConverted1_208ADCB770318612468D07B8D04B949C" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConversionOfStockLineItems_6DD2ACBBD1C4B45FEB1007B8D04ABFFA" xlink:to="loc_us-gaap_ConversionOfStockSharesConverted1_208ADCB770318612468D07B8D04B949C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction" xlink:label="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_D2D8B0CFE1FD967A760807B8D04B9665" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConversionOfStockLineItems_6DD2ACBBD1C4B45FEB1007B8D04ABFFA" xlink:to="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_D2D8B0CFE1FD967A760807B8D04B9665" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SaleOfStockPricePerShare" xlink:label="loc_us-gaap_SaleOfStockPricePerShare_CFDF297C0C3A281E0B9807B8D04BE8DB" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConversionOfStockLineItems_6DD2ACBBD1C4B45FEB1007B8D04ABFFA" xlink:to="loc_us-gaap_SaleOfStockPricePerShare_CFDF297C0C3A281E0B9807B8D04BE8DB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SaleOfStockConsiderationReceivedOnTransaction" xlink:label="loc_us-gaap_SaleOfStockConsiderationReceivedOnTransaction_D2E4994066748607C0E507B8D04B2DB2" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConversionOfStockLineItems_6DD2ACBBD1C4B45FEB1007B8D04ABFFA" xlink:to="loc_us-gaap_SaleOfStockConsiderationReceivedOnTransaction_D2E4994066748607C0E507B8D04B2DB2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAcceleratedCompensationCost" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAcceleratedCompensationCost_17EE523CA104FE99F45F07B8D04BECCB" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConversionOfStockLineItems_6DD2ACBBD1C4B45FEB1007B8D04ABFFA" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAcceleratedCompensationCost_17EE523CA104FE99F45F07B8D04BECCB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_19548FB50DE4D8EDCCFD07B8D04B25D0" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConversionOfStockLineItems_6DD2ACBBD1C4B45FEB1007B8D04ABFFA" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_19548FB50DE4D8EDCCFD07B8D04B25D0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_6FC78EFF3EA507CB03E407B8D04C0416" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConversionOfStockLineItems_6DD2ACBBD1C4B45FEB1007B8D04ABFFA" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_6FC78EFF3EA507CB03E407B8D04C0416" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAcceleratedVestingNumber" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAcceleratedVestingNumber_832DD733E6C7F9F8157007B8D04C8908" xlink:type="locator" />
    <link:presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConversionOfStockLineItems_6DD2ACBBD1C4B45FEB1007B8D04ABFFA" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAcceleratedVestingNumber_832DD733E6C7F9F8157007B8D04C8908" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LaborAndRelatedExpense" xlink:label="loc_us-gaap_LaborAndRelatedExpense_A52EE3F9696EB235932907B8D04C611B" xlink:type="locator" />
    <link:presentationArc order="14" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConversionOfStockLineItems_6DD2ACBBD1C4B45FEB1007B8D04ABFFA" xlink:to="loc_us-gaap_LaborAndRelatedExpense_A52EE3F9696EB235932907B8D04C611B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConversionOfStockSharesIssued1" xlink:label="loc_us-gaap_ConversionOfStockSharesIssued1_187B8F364D332D4DD3A907B8D04C1B11" xlink:type="locator" />
    <link:presentationArc order="15" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConversionOfStockLineItems_6DD2ACBBD1C4B45FEB1007B8D04ABFFA" xlink:to="loc_us-gaap_ConversionOfStockSharesIssued1_187B8F364D332D4DD3A907B8D04C1B11" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesInternalUseSoftwareDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_4C30A383BC50FE6855AC07B8D00FCF8B" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CapitalizedComputerSoftwareNet" xlink:label="loc_us-gaap_CapitalizedComputerSoftwareNet_7D0A597C20C3813C2F3707B8D00F3336" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_4C30A383BC50FE6855AC07B8D00FCF8B" xlink:to="loc_us-gaap_CapitalizedComputerSoftwareNet_7D0A597C20C3813C2F3707B8D00F3336" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesLeaseObligationsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_1090A3C0484EEAA42AD307B8D0113080" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LessorLeaseDescriptionTable" xlink:label="loc_us-gaap_LessorLeaseDescriptionTable_71594A638AFAA9AC70C707B8D011C5F5" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_1090A3C0484EEAA42AD307B8D0113080" xlink:to="loc_us-gaap_LessorLeaseDescriptionTable_71594A638AFAA9AC70C707B8D011C5F5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BalanceSheetLocationAxis" xlink:label="loc_us-gaap_BalanceSheetLocationAxis_5CD18F53838D95DC3B2007B8D0124389" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LessorLeaseDescriptionTable_71594A638AFAA9AC70C707B8D011C5F5" xlink:to="loc_us-gaap_BalanceSheetLocationAxis_5CD18F53838D95DC3B2007B8D0124389" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BalanceSheetLocationDomain" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_EADC60215ED06B7C055C07B8D01223CA" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_5CD18F53838D95DC3B2007B8D0124389" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_EADC60215ED06B7C055C07B8D01223CA" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_AccruedAndOtherCurrentLiabilitiesMember" xlink:label="loc_dbx_AccruedAndOtherCurrentLiabilitiesMember_756C98EF728A0E66D98D07B8D012358B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_EADC60215ED06B7C055C07B8D01223CA" xlink:to="loc_dbx_AccruedAndOtherCurrentLiabilitiesMember_756C98EF728A0E66D98D07B8D012358B" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_DeferredRentNonCurrentMember" xlink:label="loc_dbx_DeferredRentNonCurrentMember_A8ADCF5F452C0AD15A3207B8D0132135" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_EADC60215ED06B7C055C07B8D01223CA" xlink:to="loc_dbx_DeferredRentNonCurrentMember_A8ADCF5F452C0AD15A3207B8D0132135" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LessorLeaseDescriptionLineItems" xlink:label="loc_us-gaap_LessorLeaseDescriptionLineItems_6E15AF77AAFB0C31FF1807B8D0131616" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LessorLeaseDescriptionTable_71594A638AFAA9AC70C707B8D011C5F5" xlink:to="loc_us-gaap_LessorLeaseDescriptionLineItems_6E15AF77AAFB0C31FF1807B8D0131616" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LeaseIncentivePayableCurrentAndNoncurrent" xlink:label="loc_us-gaap_LeaseIncentivePayableCurrentAndNoncurrent_514D698AFD2926CC2DD607B8D013F7A2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LessorLeaseDescriptionLineItems_6E15AF77AAFB0C31FF1807B8D0131616" xlink:to="loc_us-gaap_LeaseIncentivePayableCurrentAndNoncurrent_514D698AFD2926CC2DD607B8D013F7A2" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesNonTradeReceivablesDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_3909B43D015076B842DC07B8D023ED03" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NontradeReceivablesCurrent" xlink:label="loc_us-gaap_NontradeReceivablesCurrent_294CA54A27B38B06279E07B8D023067E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_3909B43D015076B842DC07B8D023ED03" xlink:to="loc_us-gaap_NontradeReceivablesCurrent_294CA54A27B38B06279E07B8D023067E" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_TenantImprovementAllowanceReceivable" xlink:label="loc_dbx_TenantImprovementAllowanceReceivable_45BB7ADBE318772B67DF07B8D02423B5" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_3909B43D015076B842DC07B8D023ED03" xlink:to="loc_dbx_TenantImprovementAllowanceReceivable_45BB7ADBE318772B67DF07B8D02423B5" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesPolicies" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_8B8C99940E0A33F5E6EA07B8D054049F" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BasisOfAccountingPolicyPolicyTextBlock" xlink:label="loc_us-gaap_BasisOfAccountingPolicyPolicyTextBlock_A08CB97CA6CB03B2BE3007B8D054D78F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_8B8C99940E0A33F5E6EA07B8D054049F" xlink:to="loc_us-gaap_BasisOfAccountingPolicyPolicyTextBlock_A08CB97CA6CB03B2BE3007B8D054D78F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConsolidationPolicyTextBlock" xlink:label="loc_us-gaap_ConsolidationPolicyTextBlock_DA085B052FC4AD7FB2A707B8D055C7FD" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_8B8C99940E0A33F5E6EA07B8D054049F" xlink:to="loc_us-gaap_ConsolidationPolicyTextBlock_DA085B052FC4AD7FB2A707B8D055C7FD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_UseOfEstimates" xlink:label="loc_us-gaap_UseOfEstimates_9BE474CF97958ED65A9707B8D05565D2" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_8B8C99940E0A33F5E6EA07B8D054049F" xlink:to="loc_us-gaap_UseOfEstimates_9BE474CF97958ED65A9707B8D05565D2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SegmentReportingPolicyPolicyTextBlock" xlink:label="loc_us-gaap_SegmentReportingPolicyPolicyTextBlock_95552240EFF7D3C20D7207B8D0550B0B" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_8B8C99940E0A33F5E6EA07B8D054049F" xlink:to="loc_us-gaap_SegmentReportingPolicyPolicyTextBlock_95552240EFF7D3C20D7207B8D0550B0B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock" xlink:label="loc_us-gaap_ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock_79A15A1C83552FA75ED707B8D05547BC" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_8B8C99940E0A33F5E6EA07B8D054049F" xlink:to="loc_us-gaap_ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock_79A15A1C83552FA75ED707B8D05547BC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RevenueFromContractWithCustomerPolicyTextBlock" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerPolicyTextBlock_399F8A5FBEBDA0F2442507B8D0552C57" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_8B8C99940E0A33F5E6EA07B8D054049F" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerPolicyTextBlock_399F8A5FBEBDA0F2442507B8D0552C57" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CompensationRelatedCostsPolicyTextBlock" xlink:label="loc_us-gaap_CompensationRelatedCostsPolicyTextBlock_A455BB3D6493BC84395A07B8D056BC88" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_8B8C99940E0A33F5E6EA07B8D054049F" xlink:to="loc_us-gaap_CompensationRelatedCostsPolicyTextBlock_A455BB3D6493BC84395A07B8D056BC88" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AdvertisingCostsPolicyTextBlock" xlink:label="loc_us-gaap_AdvertisingCostsPolicyTextBlock_349B5F4B02F3BECB128A07B8D056827C" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_8B8C99940E0A33F5E6EA07B8D054049F" xlink:to="loc_us-gaap_AdvertisingCostsPolicyTextBlock_349B5F4B02F3BECB128A07B8D056827C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashAndCashEquivalentsPolicyTextBlock" xlink:label="loc_us-gaap_CashAndCashEquivalentsPolicyTextBlock_D9FDC4F71548D6902C6007B8D056F8CD" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_8B8C99940E0A33F5E6EA07B8D054049F" xlink:to="loc_us-gaap_CashAndCashEquivalentsPolicyTextBlock_D9FDC4F71548D6902C6007B8D056F8CD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_MarketableSecuritiesPolicy" xlink:label="loc_us-gaap_MarketableSecuritiesPolicy_1DDCA4CD6437BFCC189207B8D0562FFC" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_8B8C99940E0A33F5E6EA07B8D054049F" xlink:to="loc_us-gaap_MarketableSecuritiesPolicy_1DDCA4CD6437BFCC189207B8D0562FFC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ReceivablesPolicyTextBlock" xlink:label="loc_us-gaap_ReceivablesPolicyTextBlock_3B8D73623B46D76D42D607B8D056CBE3" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_8B8C99940E0A33F5E6EA07B8D054049F" xlink:to="loc_us-gaap_ReceivablesPolicyTextBlock_3B8D73623B46D76D42D607B8D056CBE3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ReceivablesTradeAndOtherAccountsReceivableAllowanceForDoubtfulAccountsPolicy" xlink:label="loc_us-gaap_ReceivablesTradeAndOtherAccountsReceivableAllowanceForDoubtfulAccountsPolicy_4F4584D27AAC8B4F67E207B8D0563837" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_8B8C99940E0A33F5E6EA07B8D054049F" xlink:to="loc_us-gaap_ReceivablesTradeAndOtherAccountsReceivableAllowanceForDoubtfulAccountsPolicy_4F4584D27AAC8B4F67E207B8D0563837" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConcentrationRiskCreditRisk" xlink:label="loc_us-gaap_ConcentrationRiskCreditRisk_5158CD18511DC4D6408407B8D0561C50" xlink:type="locator" />
    <link:presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_8B8C99940E0A33F5E6EA07B8D054049F" xlink:to="loc_us-gaap_ConcentrationRiskCreditRisk_5158CD18511DC4D6408407B8D0561C50" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentPolicyTextBlock" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_726FD7A2493878EC249207B8D057A307" xlink:type="locator" />
    <link:presentationArc order="14" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_8B8C99940E0A33F5E6EA07B8D054049F" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_726FD7A2493878EC249207B8D057A307" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LesseeLeasesPolicyTextBlock" xlink:label="loc_us-gaap_LesseeLeasesPolicyTextBlock_938A22AA5EF070E9006907B8D0575DF1" xlink:type="locator" />
    <link:presentationArc order="15" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_8B8C99940E0A33F5E6EA07B8D054049F" xlink:to="loc_us-gaap_LesseeLeasesPolicyTextBlock_938A22AA5EF070E9006907B8D0575DF1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InternalUseSoftwarePolicy" xlink:label="loc_us-gaap_InternalUseSoftwarePolicy_9D0F112B75E7D6D75EC007B8D0576B5C" xlink:type="locator" />
    <link:presentationArc order="16" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_8B8C99940E0A33F5E6EA07B8D054049F" xlink:to="loc_us-gaap_InternalUseSoftwarePolicy_9D0F112B75E7D6D75EC007B8D0576B5C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationsPolicy" xlink:label="loc_us-gaap_BusinessCombinationsPolicy_CDD086C249239623E3DD07B8D057C4F7" xlink:type="locator" />
    <link:presentationArc order="17" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_8B8C99940E0A33F5E6EA07B8D054049F" xlink:to="loc_us-gaap_BusinessCombinationsPolicy_CDD086C249239623E3DD07B8D057C4F7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ImpairmentOrDisposalOfLongLivedAssetsIncludingIntangibleAssetsPolicyPolicyTextBlock" xlink:label="loc_us-gaap_ImpairmentOrDisposalOfLongLivedAssetsIncludingIntangibleAssetsPolicyPolicyTextBlock_214507DDA71CF35F01B107B8D05769C0" xlink:type="locator" />
    <link:presentationArc order="18" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_8B8C99940E0A33F5E6EA07B8D054049F" xlink:to="loc_us-gaap_ImpairmentOrDisposalOfLongLivedAssetsIncludingIntangibleAssetsPolicyPolicyTextBlock_214507DDA71CF35F01B107B8D05769C0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredChargesPolicyTextBlock" xlink:label="loc_us-gaap_DeferredChargesPolicyTextBlock_F2EE6B5EE62E763466BA07B8D057CCB2" xlink:type="locator" />
    <link:presentationArc order="19" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_8B8C99940E0A33F5E6EA07B8D054049F" xlink:to="loc_us-gaap_DeferredChargesPolicyTextBlock_F2EE6B5EE62E763466BA07B8D057CCB2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxPolicyTextBlock" xlink:label="loc_us-gaap_IncomeTaxPolicyTextBlock_28FB20F15A0666001BF807B8D058B9A3" xlink:type="locator" />
    <link:presentationArc order="20" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_8B8C99940E0A33F5E6EA07B8D054049F" xlink:to="loc_us-gaap_IncomeTaxPolicyTextBlock_28FB20F15A0666001BF807B8D058B9A3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueMeasurementPolicyPolicyTextBlock" xlink:label="loc_us-gaap_FairValueMeasurementPolicyPolicyTextBlock_D4EC970880CB126359EA07B8D058A05F" xlink:type="locator" />
    <link:presentationArc order="21" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_8B8C99940E0A33F5E6EA07B8D054049F" xlink:to="loc_us-gaap_FairValueMeasurementPolicyPolicyTextBlock_D4EC970880CB126359EA07B8D058A05F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:label="loc_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_462A88C88779234771A407B8D058E57C" xlink:type="locator" />
    <link:presentationArc order="22" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_8B8C99940E0A33F5E6EA07B8D054049F" xlink:to="loc_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_462A88C88779234771A407B8D058E57C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsGoodwillPolicy" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsGoodwillPolicy_85F4315D9EE51189B55907B8D05851B1" xlink:type="locator" />
    <link:presentationArc order="23" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_8B8C99940E0A33F5E6EA07B8D054049F" xlink:to="loc_us-gaap_GoodwillAndIntangibleAssetsGoodwillPolicy_85F4315D9EE51189B55907B8D05851B1" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesPropertyAndEquipmentNetDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_82010C530D3349779B5F07B8D016456F" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_C6EEA5D34621C6DA7DB007B8D016228C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_82010C530D3349779B5F07B8D016456F" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_C6EEA5D34621C6DA7DB007B8D016228C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ChangeInAccountingEstimateByTypeAxis" xlink:label="loc_us-gaap_ChangeInAccountingEstimateByTypeAxis_615A4395A17BBA13F95107B8D017DB7D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_C6EEA5D34621C6DA7DB007B8D016228C" xlink:to="loc_us-gaap_ChangeInAccountingEstimateByTypeAxis_615A4395A17BBA13F95107B8D017DB7D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ChangeInAccountingEstimateTypeDomain" xlink:label="loc_us-gaap_ChangeInAccountingEstimateTypeDomain_BD64FA4638CBBE97AF5407B8D01720F4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ChangeInAccountingEstimateByTypeAxis_615A4395A17BBA13F95107B8D017DB7D" xlink:to="loc_us-gaap_ChangeInAccountingEstimateTypeDomain_BD64FA4638CBBE97AF5407B8D01720F4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ChangeInAccountingMethodAccountedForAsChangeInEstimateMember" xlink:label="loc_us-gaap_ChangeInAccountingMethodAccountedForAsChangeInEstimateMember_BC1615ADC27C995181AF07B8D0177A65" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ChangeInAccountingEstimateTypeDomain_BD64FA4638CBBE97AF5407B8D01720F4" xlink:to="loc_us-gaap_ChangeInAccountingMethodAccountedForAsChangeInEstimateMember_BC1615ADC27C995181AF07B8D0177A65" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_RangeAxis" xlink:label="loc_srt_RangeAxis_77B0FBA3892564C30CD907B8D017A861" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_C6EEA5D34621C6DA7DB007B8D016228C" xlink:to="loc_srt_RangeAxis_77B0FBA3892564C30CD907B8D017A861" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_RangeMember" xlink:label="loc_srt_RangeMember_C18A8DE886DCC21DD4F107B8D018A617" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeAxis_77B0FBA3892564C30CD907B8D017A861" xlink:to="loc_srt_RangeMember_C18A8DE886DCC21DD4F107B8D018A617" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_MinimumMember" xlink:label="loc_srt_MinimumMember_A1922120A390A9F89C9C07B8D018564F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_C18A8DE886DCC21DD4F107B8D018A617" xlink:to="loc_srt_MinimumMember_A1922120A390A9F89C9C07B8D018564F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_MaximumMember" xlink:label="loc_srt_MaximumMember_79C6DB03E9651F8FC2C207B8D0181F82" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_C18A8DE886DCC21DD4F107B8D018A617" xlink:to="loc_srt_MaximumMember_79C6DB03E9651F8FC2C207B8D0181F82" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_143332732BBD0D47FCF207B8D018DC38" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_C6EEA5D34621C6DA7DB007B8D016228C" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_143332732BBD0D47FCF207B8D018DC38" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_CBACEB68CFAB2317670F07B8D0195BE8" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_143332732BBD0D47FCF207B8D018DC38" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_CBACEB68CFAB2317670F07B8D0195BE8" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_InfrastructureEquipmentMember" xlink:label="loc_dbx_InfrastructureEquipmentMember_0E5A421C3CCEDB3046F607B8D019729D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_CBACEB68CFAB2317670F07B8D0195BE8" xlink:to="loc_dbx_InfrastructureEquipmentMember_0E5A421C3CCEDB3046F607B8D019729D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BuildingMember" xlink:label="loc_us-gaap_BuildingMember_CBD9AFA70A72F5F47E4A07B8D01997BF" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_CBACEB68CFAB2317670F07B8D0195BE8" xlink:to="loc_us-gaap_BuildingMember_CBD9AFA70A72F5F47E4A07B8D01997BF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ComputerEquipmentMember" xlink:label="loc_us-gaap_ComputerEquipmentMember_24B8950D5370360700FB07B8D0192A51" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_CBACEB68CFAB2317670F07B8D0195BE8" xlink:to="loc_us-gaap_ComputerEquipmentMember_24B8950D5370360700FB07B8D0192A51" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OfficeEquipmentMember" xlink:label="loc_us-gaap_OfficeEquipmentMember_D7361510B9C4B022522E07B8D019D66F" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_CBACEB68CFAB2317670F07B8D0195BE8" xlink:to="loc_us-gaap_OfficeEquipmentMember_D7361510B9C4B022522E07B8D019D66F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_53BCEBBB6A55E185F8B907B8D01963F3" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_C6EEA5D34621C6DA7DB007B8D016228C" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentLineItems_53BCEBBB6A55E185F8B907B8D01963F3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_867FEBC806CAE3E6123807B8D01AD559" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_53BCEBBB6A55E185F8B907B8D01963F3" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_867FEBC806CAE3E6123807B8D01AD559" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Depreciation" xlink:label="loc_us-gaap_Depreciation_23B69868071BB7551B7007B8D01A4772" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_53BCEBBB6A55E185F8B907B8D01963F3" xlink:to="loc_us-gaap_Depreciation_23B69868071BB7551B7007B8D01A4772" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesRevenueRecognitionDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_B255745C3A26D798325407B8D03DE274" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RevenuePerformanceObligationDescriptionOfTiming" xlink:label="loc_us-gaap_RevenuePerformanceObligationDescriptionOfTiming_1FAE7594D08F064362F307B8D03D31E8" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_B255745C3A26D798325407B8D03DE274" xlink:to="loc_us-gaap_RevenuePerformanceObligationDescriptionOfTiming_1FAE7594D08F064362F307B8D03D31E8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ContractWithCustomerLiabilityRevenueRecognized" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityRevenueRecognized_52B739D89B44BBB505BD07B8D03D3C4A" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_B255745C3A26D798325407B8D03DE274" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityRevenueRecognized_52B739D89B44BBB505BD07B8D03D3C4A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RevenueRemainingPerformanceObligation" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligation_E5F8AB40BA2003A2179707B8D03DA089" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_B255745C3A26D798325407B8D03DE274" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligation_E5F8AB40BA2003A2179707B8D03DA089" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RevenueInitialApplicationPeriodCumulativeEffectTransitionTable" xlink:label="loc_us-gaap_RevenueInitialApplicationPeriodCumulativeEffectTransitionTable_3B2605BA875A298ADD8C07B8D03E16F1" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_B255745C3A26D798325407B8D03DE274" xlink:to="loc_us-gaap_RevenueInitialApplicationPeriodCumulativeEffectTransitionTable_3B2605BA875A298ADD8C07B8D03E16F1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_CC8A28B1EF835292B28707B8D03E32AB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenueInitialApplicationPeriodCumulativeEffectTransitionTable_3B2605BA875A298ADD8C07B8D03E16F1" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_CC8A28B1EF835292B28707B8D03E32AB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RevenueInitialApplicationPeriodCumulativeEffectTransitionLineItems" xlink:label="loc_us-gaap_RevenueInitialApplicationPeriodCumulativeEffectTransitionLineItems_3AC755E001A14227ADE207B8D03EAB90" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenueInitialApplicationPeriodCumulativeEffectTransitionTable_3B2605BA875A298ADD8C07B8D03E16F1" xlink:to="loc_us-gaap_RevenueInitialApplicationPeriodCumulativeEffectTransitionLineItems_3AC755E001A14227ADE207B8D03EAB90" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_609B592589BED7CD8F7C07B8D03E93B4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenueInitialApplicationPeriodCumulativeEffectTransitionLineItems_3AC755E001A14227ADE207B8D03EAB90" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_609B592589BED7CD8F7C07B8D03E93B4" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesStockBasedCompensationDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_61F73BC6E52170606A2C07B8D0328146" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_ADCBB333C5616C59249007B8D032E3C0" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_61F73BC6E52170606A2C07B8D0328146" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_ADCBB333C5616C59249007B8D032E3C0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_RangeAxis" xlink:label="loc_srt_RangeAxis_78CE0723440246E1677007B8D03302CA" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_ADCBB333C5616C59249007B8D032E3C0" xlink:to="loc_srt_RangeAxis_78CE0723440246E1677007B8D03302CA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_RangeMember" xlink:label="loc_srt_RangeMember_82D9441A89BF0CE3B5D207B8D0339836" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeAxis_78CE0723440246E1677007B8D03302CA" xlink:to="loc_srt_RangeMember_82D9441A89BF0CE3B5D207B8D0339836" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_MinimumMember" xlink:label="loc_srt_MinimumMember_24DB1197A037A2C5DA5D07B8D03342B7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_82D9441A89BF0CE3B5D207B8D0339836" xlink:to="loc_srt_MinimumMember_24DB1197A037A2C5DA5D07B8D03342B7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_MaximumMember" xlink:label="loc_srt_MaximumMember_3DE77740A0E6CF3E9D3407B8D0345EC8" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_82D9441A89BF0CE3B5D207B8D0339836" xlink:to="loc_srt_MaximumMember_3DE77740A0E6CF3E9D3407B8D0345EC8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TitleOfIndividualAxis" xlink:label="loc_us-gaap_TitleOfIndividualAxis_34E27D3102370F7331C507B8D034E456" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_ADCBB333C5616C59249007B8D032E3C0" xlink:to="loc_us-gaap_TitleOfIndividualAxis_34E27D3102370F7331C507B8D034E456" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TitleOfIndividualWithRelationshipToEntityDomain" xlink:label="loc_us-gaap_TitleOfIndividualWithRelationshipToEntityDomain_F07E35FAF02390220ABB07B8D034AB53" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TitleOfIndividualAxis_34E27D3102370F7331C507B8D034E456" xlink:to="loc_us-gaap_TitleOfIndividualWithRelationshipToEntityDomain_F07E35FAF02390220ABB07B8D034AB53" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ChiefExecutiveOfficerMember" xlink:label="loc_us-gaap_ChiefExecutiveOfficerMember_B767E17E8AC95F6D301E07B8D0342833" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TitleOfIndividualWithRelationshipToEntityDomain_F07E35FAF02390220ABB07B8D034AB53" xlink:to="loc_us-gaap_ChiefExecutiveOfficerMember_B767E17E8AC95F6D301E07B8D0342833" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DirectorMember" xlink:label="loc_us-gaap_DirectorMember_DFE3D9358FE27D3C01F507B8D0348867" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TitleOfIndividualWithRelationshipToEntityDomain_F07E35FAF02390220ABB07B8D034AB53" xlink:to="loc_us-gaap_DirectorMember_DFE3D9358FE27D3C01F507B8D0348867" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PlanNameAxis" xlink:label="loc_us-gaap_PlanNameAxis_060DCAA223C8FA973EB407B8D0358292" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_ADCBB333C5616C59249007B8D032E3C0" xlink:to="loc_us-gaap_PlanNameAxis_060DCAA223C8FA973EB407B8D0358292" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PlanNameDomain" xlink:label="loc_us-gaap_PlanNameDomain_59305BF22D65AE64441607B8D035C730" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanNameAxis_060DCAA223C8FA973EB407B8D0358292" xlink:to="loc_us-gaap_PlanNameDomain_59305BF22D65AE64441607B8D035C730" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_CoFounderGrantsMember" xlink:label="loc_dbx_CoFounderGrantsMember_681BE58C814617C0976307B8D035431D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanNameDomain_59305BF22D65AE64441607B8D035C730" xlink:to="loc_dbx_CoFounderGrantsMember_681BE58C814617C0976307B8D035431D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_VestingAxis" xlink:label="loc_us-gaap_VestingAxis_14C46491F0C998DE78D307B8D035939C" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_ADCBB333C5616C59249007B8D032E3C0" xlink:to="loc_us-gaap_VestingAxis_14C46491F0C998DE78D307B8D035939C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_VestingDomain" xlink:label="loc_us-gaap_VestingDomain_A39A6F104C48E1D72FC407B8D035A592" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_VestingAxis_14C46491F0C998DE78D307B8D035939C" xlink:to="loc_us-gaap_VestingDomain_A39A6F104C48E1D72FC407B8D035A592" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationAwardTrancheOneMember" xlink:label="loc_us-gaap_ShareBasedCompensationAwardTrancheOneMember_4A616EAC2ED41627744A07B8D036B0EF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_VestingDomain_A39A6F104C48E1D72FC407B8D035A592" xlink:to="loc_us-gaap_ShareBasedCompensationAwardTrancheOneMember_4A616EAC2ED41627744A07B8D036B0EF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_7E5B64B129EAC463C58307B8D0363368" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_ADCBB333C5616C59249007B8D032E3C0" xlink:to="loc_us-gaap_AwardTypeAxis_7E5B64B129EAC463C58307B8D0363368" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B2E47352B886ABC7D80307B8D036DD36" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_7E5B64B129EAC463C58307B8D0363368" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B2E47352B886ABC7D80307B8D036DD36" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestrictedStockUnitsRSUMember" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_9D614318AC0A1CA8E29007B8D036A50C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B2E47352B886ABC7D80307B8D036DD36" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_9D614318AC0A1CA8E29007B8D036A50C" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_OneTierRestrictedStockUnitsRSUsMember" xlink:label="loc_dbx_OneTierRestrictedStockUnitsRSUsMember_9BF7BC6C90AD0338449A07B8D0379A05" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B2E47352B886ABC7D80307B8D036DD36" xlink:to="loc_dbx_OneTierRestrictedStockUnitsRSUsMember_9BF7BC6C90AD0338449A07B8D0379A05" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_TwoTierRestrictedStockUnitsRSUsMember" xlink:label="loc_dbx_TwoTierRestrictedStockUnitsRSUsMember_2A969B265B644657D5C907B8D037F1B5" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B2E47352B886ABC7D80307B8D036DD36" xlink:to="loc_dbx_TwoTierRestrictedStockUnitsRSUsMember_2A969B265B644657D5C907B8D037F1B5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestrictedStockMember" xlink:label="loc_us-gaap_RestrictedStockMember_03C80FBC0063EE79B1C207B8D0370623" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B2E47352B886ABC7D80307B8D036DD36" xlink:to="loc_us-gaap_RestrictedStockMember_03C80FBC0063EE79B1C207B8D0370623" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_B444204C67A073E6FDEF07B8D03702B1" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_ADCBB333C5616C59249007B8D032E3C0" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_B444204C67A073E6FDEF07B8D03702B1" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAwardTypes" xlink:label="loc_dbx_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAwardTypes_6E04A4698B60F6B833CC07B8D037057D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_B444204C67A073E6FDEF07B8D03702B1" xlink:to="loc_dbx_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAwardTypes_6E04A4698B60F6B833CC07B8D037057D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_0EBC8698B3C2D1F0F1E207B8D037A659" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_B444204C67A073E6FDEF07B8D03702B1" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_0EBC8698B3C2D1F0F1E207B8D037A659" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_728362A15A075FB12AB107B8D0384079" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_B444204C67A073E6FDEF07B8D03702B1" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_728362A15A075FB12AB107B8D0384079" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_6A8E5C5E3AF9422DE8E707B8D03803CF" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_B444204C67A073E6FDEF07B8D03702B1" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_6A8E5C5E3AF9422DE8E707B8D03803CF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_E83152EA64A05C26935007B8D038D171" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_B444204C67A073E6FDEF07B8D03702B1" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_E83152EA64A05C26935007B8D038D171" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfTranches" xlink:label="loc_dbx_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfTranches_5598B4F1C8A631C13BF507B8D0386350" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_B444204C67A073E6FDEF07B8D03702B1" xlink:to="loc_dbx_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfTranches_5598B4F1C8A631C13BF507B8D0386350" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_00C025394857A0D03A5F07B8D038599D" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_B444204C67A073E6FDEF07B8D03702B1" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_00C025394857A0D03A5F07B8D038599D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1_3D3FB8E135D6BAFB60BD07B8D03818DE" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_B444204C67A073E6FDEF07B8D03702B1" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1_3D3FB8E135D6BAFB60BD07B8D03818DE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AllocatedShareBasedCompensationExpense" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_51A3E10E0B5618CB5D2207B8D03835C2" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_B444204C67A073E6FDEF07B8D03702B1" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_51A3E10E0B5618CB5D2207B8D03835C2" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_B3DCFBAC3B38CFAD335407B8D05083B1" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTextBlock" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTextBlock_4E36603D772425D07B5B07B8D051D188" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_B3DCFBAC3B38CFAD335407B8D05083B1" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTextBlock_4E36603D772425D07B5B07B8D051D188" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesTradeAndOtherReceivablesNetDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_6B11DBF865178D4C138607B8D02CD7BD" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivable" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivable_74BA1B3B16EC8FEAF34707B8D02C6711" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_6B11DBF865178D4C138607B8D02CD7BD" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivable_74BA1B3B16EC8FEAF34707B8D02C6711" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/DocumentAndEntityInformation" xlink:type="extended">
    <link:loc xlink:href="dbx-20181231.xsd#dbx_DocumentAndEntityInformationAbstract" xlink:label="loc_dbx_DocumentAndEntityInformationAbstract_89345458564C16DB9D4907B8D12B7E92" xlink:type="locator" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_DocumentInformationTable" xlink:label="loc_dei_DocumentInformationTable_76DE103BC21B63BCBE1107B8D12B5B99" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dbx_DocumentAndEntityInformationAbstract_89345458564C16DB9D4907B8D12B7E92" xlink:to="loc_dei_DocumentInformationTable_76DE103BC21B63BCBE1107B8D12B5B99" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_FE425366FD3061666F1F07B8D12B439B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationTable_76DE103BC21B63BCBE1107B8D12B5B99" xlink:to="loc_us-gaap_StatementClassOfStockAxis_FE425366FD3061666F1F07B8D12B439B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_32D25CAEF8C90AEF034B07B8D12C61F2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementClassOfStockAxis_FE425366FD3061666F1F07B8D12B439B" xlink:to="loc_us-gaap_ClassOfStockDomain_32D25CAEF8C90AEF034B07B8D12C61F2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonClassAMember" xlink:label="loc_us-gaap_CommonClassAMember_7CBB75EADBE46A2A049D07B8D12C2E5D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_32D25CAEF8C90AEF034B07B8D12C61F2" xlink:to="loc_us-gaap_CommonClassAMember_7CBB75EADBE46A2A049D07B8D12C2E5D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonClassBMember" xlink:label="loc_us-gaap_CommonClassBMember_5655EF13CB4025F099D407B8D12C9CBE" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_32D25CAEF8C90AEF034B07B8D12C61F2" xlink:to="loc_us-gaap_CommonClassBMember_5655EF13CB4025F099D407B8D12C9CBE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonClassCMember" xlink:label="loc_us-gaap_CommonClassCMember_2E2454E23ADA74261D5607B8D12DE920" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_32D25CAEF8C90AEF034B07B8D12C61F2" xlink:to="loc_us-gaap_CommonClassCMember_2E2454E23ADA74261D5607B8D12DE920" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_DocumentInformationLineItems" xlink:label="loc_dei_DocumentInformationLineItems_8854A0D0A4AD82EC57FF07B8D12DCB2F" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationTable_76DE103BC21B63BCBE1107B8D12B5B99" xlink:to="loc_dei_DocumentInformationLineItems_8854A0D0A4AD82EC57FF07B8D12DCB2F" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntityRegistrantName" xlink:label="loc_dei_EntityRegistrantName_79626503336B46232F3E07B8D12D8B55" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_8854A0D0A4AD82EC57FF07B8D12DCB2F" xlink:to="loc_dei_EntityRegistrantName_79626503336B46232F3E07B8D12D8B55" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntityCentralIndexKey" xlink:label="loc_dei_EntityCentralIndexKey_BADCCA4B25C194236ACE07B8D12D47A1" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_8854A0D0A4AD82EC57FF07B8D12DCB2F" xlink:to="loc_dei_EntityCentralIndexKey_BADCCA4B25C194236ACE07B8D12D47A1" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_CurrentFiscalYearEndDate" xlink:label="loc_dei_CurrentFiscalYearEndDate_7FDC0793B2D14970890B07B8D12D4434" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_8854A0D0A4AD82EC57FF07B8D12DCB2F" xlink:to="loc_dei_CurrentFiscalYearEndDate_7FDC0793B2D14970890B07B8D12D4434" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntityFilerCategory" xlink:label="loc_dei_EntityFilerCategory_E0FB1DF17F054E41808007B8D12DEF72" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_8854A0D0A4AD82EC57FF07B8D12DCB2F" xlink:to="loc_dei_EntityFilerCategory_E0FB1DF17F054E41808007B8D12DEF72" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_DocumentType" xlink:label="loc_dei_DocumentType_7D75E9649EC12E5C862207B8D12EACFE" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_8854A0D0A4AD82EC57FF07B8D12DCB2F" xlink:to="loc_dei_DocumentType_7D75E9649EC12E5C862207B8D12EACFE" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_DocumentPeriodEndDate" xlink:label="loc_dei_DocumentPeriodEndDate_45FC0418AF1549327F5207B8D12EDC92" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_8854A0D0A4AD82EC57FF07B8D12DCB2F" xlink:to="loc_dei_DocumentPeriodEndDate_45FC0418AF1549327F5207B8D12EDC92" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_DocumentFiscalYearFocus" xlink:label="loc_dei_DocumentFiscalYearFocus_666675DF72B95304703E07B8D12E44E9" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_8854A0D0A4AD82EC57FF07B8D12DCB2F" xlink:to="loc_dei_DocumentFiscalYearFocus_666675DF72B95304703E07B8D12E44E9" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_DocumentFiscalPeriodFocus" xlink:label="loc_dei_DocumentFiscalPeriodFocus_E70616B59C9CB1E4DC0407B8D12E8987" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_8854A0D0A4AD82EC57FF07B8D12DCB2F" xlink:to="loc_dei_DocumentFiscalPeriodFocus_E70616B59C9CB1E4DC0407B8D12E8987" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_AmendmentFlag" xlink:label="loc_dei_AmendmentFlag_38E589366DCECCC2787507B8D12EAA9E" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_8854A0D0A4AD82EC57FF07B8D12DCB2F" xlink:to="loc_dei_AmendmentFlag_38E589366DCECCC2787507B8D12EAA9E" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntityEmergingGrowthCompany" xlink:label="loc_dei_EntityEmergingGrowthCompany_E3999A857C0E9DBEF83907B8D12E17FA" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_8854A0D0A4AD82EC57FF07B8D12DCB2F" xlink:to="loc_dei_EntityEmergingGrowthCompany_E3999A857C0E9DBEF83907B8D12E17FA" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntitySmallBusiness" xlink:label="loc_dei_EntitySmallBusiness_AEA449CBFFADCBB4267007B8D12F15F4" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_8854A0D0A4AD82EC57FF07B8D12DCB2F" xlink:to="loc_dei_EntitySmallBusiness_AEA449CBFFADCBB4267007B8D12F15F4" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntityCommonStockSharesOutstanding" xlink:label="loc_dei_EntityCommonStockSharesOutstanding_A77638417BC933FEA00A07B8D12FA9B9" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_8854A0D0A4AD82EC57FF07B8D12DCB2F" xlink:to="loc_dei_EntityCommonStockSharesOutstanding_A77638417BC933FEA00A07B8D12FA9B9" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntityWellKnownSeasonedIssuer" xlink:label="loc_dei_EntityWellKnownSeasonedIssuer_7AFAB336CA39DACE920907B8D12FEA0C" xlink:type="locator" />
    <link:presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_8854A0D0A4AD82EC57FF07B8D12DCB2F" xlink:to="loc_dei_EntityWellKnownSeasonedIssuer_7AFAB336CA39DACE920907B8D12FEA0C" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntityVoluntaryFilers" xlink:label="loc_dei_EntityVoluntaryFilers_D3C416896F4D0B8FC0DC07B8D12F8214" xlink:type="locator" />
    <link:presentationArc order="14" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_8854A0D0A4AD82EC57FF07B8D12DCB2F" xlink:to="loc_dei_EntityVoluntaryFilers_D3C416896F4D0B8FC0DC07B8D12F8214" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntityCurrentReportingStatus" xlink:label="loc_dei_EntityCurrentReportingStatus_8D207C6565CF7EFED15407B8D12FE730" xlink:type="locator" />
    <link:presentationArc order="15" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_8854A0D0A4AD82EC57FF07B8D12DCB2F" xlink:to="loc_dei_EntityCurrentReportingStatus_8D207C6565CF7EFED15407B8D12FE730" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntityShellCompany" xlink:label="loc_dei_EntityShellCompany_D22EA1C84EA2F670F53207B8D12F22D1" xlink:type="locator" />
    <link:presentationArc order="16" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_8854A0D0A4AD82EC57FF07B8D12DCB2F" xlink:to="loc_dei_EntityShellCompany_D22EA1C84EA2F670F53207B8D12F22D1" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntityPublicFloat" xlink:label="loc_dei_EntityPublicFloat_B23C6962F378ED1F4E4607B8D12F65BF" xlink:type="locator" />
    <link:presentationArc order="17" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_8854A0D0A4AD82EC57FF07B8D12DCB2F" xlink:to="loc_dei_EntityPublicFloat_B23C6962F378ED1F4E4607B8D12F65BF" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/FairValueMeasurements" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueDisclosuresAbstract" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_963966CC27F7D110CA1307B8CFE0F5B3" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueDisclosuresTextBlock" xlink:label="loc_us-gaap_FairValueDisclosuresTextBlock_D83612F9616D3BBA745907B8CFE0A02A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_963966CC27F7D110CA1307B8CFE0F5B3" xlink:to="loc_us-gaap_FairValueDisclosuresTextBlock_D83612F9616D3BBA745907B8CFE0A02A" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/FairValueMeasurementsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueDisclosuresAbstract" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_C3E2543FF52E0C5E158A07B8CFD56B56" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueByBalanceSheetGroupingTable" xlink:label="loc_us-gaap_FairValueByBalanceSheetGroupingTable_F845340019D3653C6B4807B8CFD540EF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_C3E2543FF52E0C5E158A07B8CFD56B56" xlink:to="loc_us-gaap_FairValueByBalanceSheetGroupingTable_F845340019D3653C6B4807B8CFD540EF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueByMeasurementFrequencyAxis" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_334EA3D78A2B13A217BA07B8CFD63B7F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByBalanceSheetGroupingTable_F845340019D3653C6B4807B8CFD540EF" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_334EA3D78A2B13A217BA07B8CFD63B7F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_CB7169D1AA7F6F00994007B8CFD61E98" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_334EA3D78A2B13A217BA07B8CFD63B7F" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_CB7169D1AA7F6F00994007B8CFD61E98" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueMeasurementsRecurringMember" xlink:label="loc_us-gaap_FairValueMeasurementsRecurringMember_1FA4B3E464D0FC30B30B07B8CFD6907B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_CB7169D1AA7F6F00994007B8CFD61E98" xlink:to="loc_us-gaap_FairValueMeasurementsRecurringMember_1FA4B3E464D0FC30B30B07B8CFD6907B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_1E82448B8DFAB50387D507B8CFD6D86E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByBalanceSheetGroupingTable_F845340019D3653C6B4807B8CFD540EF" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_1E82448B8DFAB50387D507B8CFD6D86E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_CC2EBB250C1EE209920307B8CFD761D6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_1E82448B8DFAB50387D507B8CFD6D86E" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_CC2EBB250C1EE209920307B8CFD761D6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueInputsLevel1Member" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_6DF9E0C0B72A3A9AC76D07B8CFD7A16E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_CC2EBB250C1EE209920307B8CFD761D6" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_6DF9E0C0B72A3A9AC76D07B8CFD7A16E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueInputsLevel2Member" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_FDD6690799B8C07420E107B8CFD7EC80" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_CC2EBB250C1EE209920307B8CFD761D6" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_FDD6690799B8C07420E107B8CFD7EC80" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueInputsLevel3Member" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_BDDF4975A9DF336420EB07B8CFD7EDD4" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_CC2EBB250C1EE209920307B8CFD761D6" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_BDDF4975A9DF336420EB07B8CFD7EDD4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashAndCashEquivalentsAxis" xlink:label="loc_us-gaap_CashAndCashEquivalentsAxis_9188EA943DF1F13B848F07B8CFD7DBB6" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByBalanceSheetGroupingTable_F845340019D3653C6B4807B8CFD540EF" xlink:to="loc_us-gaap_CashAndCashEquivalentsAxis_9188EA943DF1F13B848F07B8CFD7DBB6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_91E1852CF2AAD8F9FD4907B8CFD8BBEF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsAxis_9188EA943DF1F13B848F07B8CFD7DBB6" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_91E1852CF2AAD8F9FD4907B8CFD8BBEF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_MoneyMarketFundsMember" xlink:label="loc_us-gaap_MoneyMarketFundsMember_E81FA02A2541BC0EDC9007B8CFD81F6B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_91E1852CF2AAD8F9FD4907B8CFD8BBEF" xlink:to="loc_us-gaap_MoneyMarketFundsMember_E81FA02A2541BC0EDC9007B8CFD81F6B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommercialPaperMember" xlink:label="loc_us-gaap_CommercialPaperMember_6FB48BEA77A15436AA0B07B8CFD89EB3" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_91E1852CF2AAD8F9FD4907B8CFD8BBEF" xlink:to="loc_us-gaap_CommercialPaperMember_6FB48BEA77A15436AA0B07B8CFD89EB3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashEquivalentsMember" xlink:label="loc_us-gaap_CashEquivalentsMember_6677F7C10B5F93B5EF2D07B8CFD82679" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_91E1852CF2AAD8F9FD4907B8CFD8BBEF" xlink:to="loc_us-gaap_CashEquivalentsMember_6677F7C10B5F93B5EF2D07B8CFD82679" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_USTreasurySecuritiesMember" xlink:label="loc_us-gaap_USTreasurySecuritiesMember_DEF24114EA67A06BC0E507B8CFD8F0BF" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_91E1852CF2AAD8F9FD4907B8CFD8BBEF" xlink:to="loc_us-gaap_USTreasurySecuritiesMember_DEF24114EA67A06BC0E507B8CFD8F0BF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinancialInstrumentAxis" xlink:label="loc_us-gaap_FinancialInstrumentAxis_82A8EDBB7DBA65D4F77107B8CFD913BC" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByBalanceSheetGroupingTable_F845340019D3653C6B4807B8CFD540EF" xlink:to="loc_us-gaap_FinancialInstrumentAxis_82A8EDBB7DBA65D4F77107B8CFD913BC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_B94594C01F81C3408A6807B8CFD98359" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancialInstrumentAxis_82A8EDBB7DBA65D4F77107B8CFD913BC" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_B94594C01F81C3408A6807B8CFD98359" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CorporateDebtSecuritiesMember" xlink:label="loc_us-gaap_CorporateDebtSecuritiesMember_E761D83AC6988342030607B8CFD92A9F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_B94594C01F81C3408A6807B8CFD98359" xlink:to="loc_us-gaap_CorporateDebtSecuritiesMember_E761D83AC6988342030607B8CFD92A9F" xlink:type="arc" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_B94594C01F81C3408A6807B8CFD98359" xlink:to="loc_us-gaap_USTreasurySecuritiesMember_DEF24114EA67A06BC0E507B8CFD8F0BF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CertificatesOfDepositMember" xlink:label="loc_us-gaap_CertificatesOfDepositMember_FCF314BD83A8179A149207B8CFD9DDDF" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_B94594C01F81C3408A6807B8CFD98359" xlink:to="loc_us-gaap_CertificatesOfDepositMember_FCF314BD83A8179A149207B8CFD9DDDF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_USGovernmentCorporationsAndAgenciesSecuritiesMember" xlink:label="loc_us-gaap_USGovernmentCorporationsAndAgenciesSecuritiesMember_47C0848940161437B0E607B8CFDA02BD" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_B94594C01F81C3408A6807B8CFD98359" xlink:to="loc_us-gaap_USGovernmentCorporationsAndAgenciesSecuritiesMember_47C0848940161437B0E607B8CFDA02BD" xlink:type="arc" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_B94594C01F81C3408A6807B8CFD98359" xlink:to="loc_us-gaap_CommercialPaperMember_6FB48BEA77A15436AA0B07B8CFD89EB3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems" xlink:label="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_41CB3962FB0219D454A907B8CFDA1F5F" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByBalanceSheetGroupingTable_F845340019D3653C6B4807B8CFD540EF" xlink:to="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_41CB3962FB0219D454A907B8CFDA1F5F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashAndCashEquivalentsFairValueDisclosure" xlink:label="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_7698CBD52F05804575F707B8CFDA79BC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_41CB3962FB0219D454A907B8CFDA1F5F" xlink:to="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_7698CBD52F05804575F707B8CFDA79BC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecurities" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_8C7789158F6857F7EC3B07B8CFDAA2EB" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_41CB3962FB0219D454A907B8CFDA1F5F" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_8C7789158F6857F7EC3B07B8CFDAA2EB" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_CashEquivalentsAndShorttermInvestments" xlink:label="loc_dbx_CashEquivalentsAndShorttermInvestments_70C59BA55AF47D9EC89C07B8CFDAB45F" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_41CB3962FB0219D454A907B8CFDA1F5F" xlink:to="loc_dbx_CashEquivalentsAndShorttermInvestments_70C59BA55AF47D9EC89C07B8CFDAB45F" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/FairValueMeasurementsTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueDisclosuresAbstract" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_61D9661DA46897EA3ECA07B8CFDED0EF" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_1C3C7C1BB5D81A97C48907B8CFDE3364" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_61D9661DA46897EA3ECA07B8CFDED0EF" xlink:to="loc_us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_1C3C7C1BB5D81A97C48907B8CFDE3364" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/GeographicAreas" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SegmentReportingAbstract" xlink:label="loc_us-gaap_SegmentReportingAbstract_357CE4E99118F9CE84BF07B8CEDCBC0A" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SegmentReportingDisclosureTextBlock" xlink:label="loc_us-gaap_SegmentReportingDisclosureTextBlock_58C5D4FE6315D949F03307B8CEDC0827" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_357CE4E99118F9CE84BF07B8CEDCBC0A" xlink:to="loc_us-gaap_SegmentReportingDisclosureTextBlock_58C5D4FE6315D949F03307B8CEDC0827" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/GeographicAreasDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SegmentReportingAbstract" xlink:label="loc_us-gaap_SegmentReportingAbstract_6542D2AD717C276929D807B8CED63A55" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_1FA3464D09243530EEDD07B8CED65E7D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_6542D2AD717C276929D807B8CED63A55" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_1FA3464D09243530EEDD07B8CED65E7D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_StatementGeographicalAxis" xlink:label="loc_srt_StatementGeographicalAxis_F01D3ADF27442CB8871B07B8CED67E45" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_1FA3464D09243530EEDD07B8CED65E7D" xlink:to="loc_srt_StatementGeographicalAxis_F01D3ADF27442CB8871B07B8CED67E45" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_SegmentGeographicalDomain" xlink:label="loc_srt_SegmentGeographicalDomain_00AA4280BC2E5A9E426207B8CED79269" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_StatementGeographicalAxis_F01D3ADF27442CB8871B07B8CED67E45" xlink:to="loc_srt_SegmentGeographicalDomain_00AA4280BC2E5A9E426207B8CED79269" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/country/2017/country-2017-01-31.xsd#country_US" xlink:label="loc_country_US_4E18757EA38E4B81B2C107B8CED7424A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_SegmentGeographicalDomain_00AA4280BC2E5A9E426207B8CED79269" xlink:to="loc_country_US_4E18757EA38E4B81B2C107B8CED7424A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NonUsMember" xlink:label="loc_us-gaap_NonUsMember_BDC7B171428C3558A5E807B8CED714EF" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_SegmentGeographicalDomain_00AA4280BC2E5A9E426207B8CED79269" xlink:to="loc_us-gaap_NonUsMember_BDC7B171428C3558A5E807B8CED714EF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SegmentReportingInformationLineItems" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_76E80C64AD0F4190FB1207B8CED74DCB" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_1FA3464D09243530EEDD07B8CED65E7D" xlink:to="loc_us-gaap_SegmentReportingInformationLineItems_76E80C64AD0F4190FB1207B8CED74DCB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_52EA017B31B908909A7507B8CED7A9DD" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_76E80C64AD0F4190FB1207B8CED74DCB" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_52EA017B31B908909A7507B8CED7A9DD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_F75A01D4DC9F6EEEC4BC07B8CED8113D" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_76E80C64AD0F4190FB1207B8CED74DCB" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_F75A01D4DC9F6EEEC4BC07B8CED8113D" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/GeographicAreasTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SegmentReportingAbstract" xlink:label="loc_us-gaap_SegmentReportingAbstract_7F5F5E306416AB5FC32107B8CEDA4646" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongLivedAssetsByGeographicAreasTableTextBlock" xlink:label="loc_us-gaap_LongLivedAssetsByGeographicAreasTableTextBlock_4D61E9B5E6A7A61F0FEC07B8CEDA4B1E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_7F5F5E306416AB5FC32107B8CEDA4646" xlink:to="loc_us-gaap_LongLivedAssetsByGeographicAreasTableTextBlock_4D61E9B5E6A7A61F0FEC07B8CEDA4B1E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RevenueFromExternalCustomersByGeographicAreasTableTextBlock" xlink:label="loc_us-gaap_RevenueFromExternalCustomersByGeographicAreasTableTextBlock_09A6D277ED7733538C4607B8CEDA15BD" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_7F5F5E306416AB5FC32107B8CEDA4646" xlink:to="loc_us-gaap_RevenueFromExternalCustomersByGeographicAreasTableTextBlock_09A6D277ED7733538C4607B8CEDA15BD" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/Goodwill" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_A9DB13448C45F524663407B8CFA888E9" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GoodwillDisclosureTextBlock" xlink:label="loc_us-gaap_GoodwillDisclosureTextBlock_8E563B60F12D1CB67CB107B8CFA84977" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_A9DB13448C45F524663407B8CFA888E9" xlink:to="loc_us-gaap_GoodwillDisclosureTextBlock_8E563B60F12D1CB67CB107B8CFA84977" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/GoodwillDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_05D2306A0E7C6D8DED6A07B8CFA3227D" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GoodwillImpairmentLoss" xlink:label="loc_us-gaap_GoodwillImpairmentLoss_FE50E1A94142146D76B507B8CFA4326B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_05D2306A0E7C6D8DED6A07B8CFA3227D" xlink:to="loc_us-gaap_GoodwillImpairmentLoss_FE50E1A94142146D76B507B8CFA4326B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GoodwillRollForward" xlink:label="loc_us-gaap_GoodwillRollForward_17C0E0A3684B9C7C56DE07B8CFA4C61C" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_05D2306A0E7C6D8DED6A07B8CFA3227D" xlink:to="loc_us-gaap_GoodwillRollForward_17C0E0A3684B9C7C56DE07B8CFA4C61C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_2C133C4519B1745B7B5707B8CFA450CD" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillRollForward_17C0E0A3684B9C7C56DE07B8CFA4C61C" xlink:to="loc_us-gaap_Goodwill_2C133C4519B1745B7B5707B8CFA450CD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GoodwillForeignCurrencyTranslationGainLoss" xlink:label="loc_us-gaap_GoodwillForeignCurrencyTranslationGainLoss_40AA7570EF2B640FF4A207B8CFA4754D" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillRollForward_17C0E0A3684B9C7C56DE07B8CFA4C61C" xlink:to="loc_us-gaap_GoodwillForeignCurrencyTranslationGainLoss_40AA7570EF2B640FF4A207B8CFA4754D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_BF8CE307F1BC9FDCAD7D07B8CFA463CF" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillRollForward_17C0E0A3684B9C7C56DE07B8CFA4C61C" xlink:to="loc_us-gaap_Goodwill_BF8CE307F1BC9FDCAD7D07B8CFA463CF" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/GoodwillTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_D98147E9527F6CB69FB807B8CFA5D8DB" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfGoodwillTextBlock" xlink:label="loc_us-gaap_ScheduleOfGoodwillTextBlock_5BE523EC51734B79C0C007B8CFA6703D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_D98147E9527F6CB69FB807B8CFA5D8DB" xlink:to="loc_us-gaap_ScheduleOfGoodwillTextBlock_5BE523EC51734B79C0C007B8CFA6703D" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/IncomeTaxes" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_08DE60316992A215613807B8CF131E09" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxDisclosureTextBlock" xlink:label="loc_us-gaap_IncomeTaxDisclosureTextBlock_2F2E3B504783A292AEBD07B8CF13406F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_08DE60316992A215613807B8CF131E09" xlink:to="loc_us-gaap_IncomeTaxDisclosureTextBlock_2F2E3B504783A292AEBD07B8CF13406F" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/IncomeTaxesComponentsOfDeferredTaxAssetsAndDeferredTaxLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_AD4B76339B5A2427882B07B8CEFA53E9" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ComponentsOfDeferredTaxAssetsAbstract" xlink:label="loc_us-gaap_ComponentsOfDeferredTaxAssetsAbstract_B07B31D28DD867B2907907B8CEFA6965" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_AD4B76339B5A2427882B07B8CEFA53E9" xlink:to="loc_us-gaap_ComponentsOfDeferredTaxAssetsAbstract_B07B31D28DD867B2907907B8CEFA6965" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsOperatingLossCarryforwards" xlink:label="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_A8D1C31B6CF417545C8D07B8CEFA1B4A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ComponentsOfDeferredTaxAssetsAbstract_B07B31D28DD867B2907907B8CEFA6965" xlink:to="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_A8D1C31B6CF417545C8D07B8CEFA1B4A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsResearch" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsResearch_2BB3718A5A1B06E30EAC07B8CEFAA073" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ComponentsOfDeferredTaxAssetsAbstract_B07B31D28DD867B2907907B8CEFA6965" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsResearch_2BB3718A5A1B06E30EAC07B8CEFAA073" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost_4A1A44571EBDB2EC553D07B8CEFA8697" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ComponentsOfDeferredTaxAssetsAbstract_B07B31D28DD867B2907907B8CEFA6965" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost_4A1A44571EBDB2EC553D07B8CEFA8697" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals_C7C6FA541AC55CD9DBBC07B8CEFB94B9" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ComponentsOfDeferredTaxAssetsAbstract_B07B31D28DD867B2907907B8CEFA6965" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals_C7C6FA541AC55CD9DBBC07B8CEFB94B9" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_DeferredTaxAssetsFixedAndIntangibleAssets" xlink:label="loc_dbx_DeferredTaxAssetsFixedAndIntangibleAssets_8089AD3A662119653CCD07B8CEFBC8CF" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ComponentsOfDeferredTaxAssetsAbstract_B07B31D28DD867B2907907B8CEFA6965" xlink:to="loc_dbx_DeferredTaxAssetsFixedAndIntangibleAssets_8089AD3A662119653CCD07B8CEFBC8CF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsOther" xlink:label="loc_us-gaap_DeferredTaxAssetsOther_CC2639100ADEB8C212E307B8CEFBED59" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ComponentsOfDeferredTaxAssetsAbstract_B07B31D28DD867B2907907B8CEFA6965" xlink:to="loc_us-gaap_DeferredTaxAssetsOther_CC2639100ADEB8C212E307B8CEFBED59" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsGross" xlink:label="loc_us-gaap_DeferredTaxAssetsGross_64CFAF68F23DD6759B1B07B8CEFB397F" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ComponentsOfDeferredTaxAssetsAbstract_B07B31D28DD867B2907907B8CEFA6965" xlink:to="loc_us-gaap_DeferredTaxAssetsGross_64CFAF68F23DD6759B1B07B8CEFB397F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsValuationAllowance" xlink:label="loc_us-gaap_DeferredTaxAssetsValuationAllowance_9AB84A9EADD20E8FEBA407B8CEFBED3C" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ComponentsOfDeferredTaxAssetsAbstract_B07B31D28DD867B2907907B8CEFA6965" xlink:to="loc_us-gaap_DeferredTaxAssetsValuationAllowance_9AB84A9EADD20E8FEBA407B8CEFBED3C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsNet" xlink:label="loc_us-gaap_DeferredTaxAssetsNet_B1D98053F3FD350C4B8E07B8CEFB5D35" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ComponentsOfDeferredTaxAssetsAbstract_B07B31D28DD867B2907907B8CEFA6965" xlink:to="loc_us-gaap_DeferredTaxAssetsNet_B1D98053F3FD350C4B8E07B8CEFB5D35" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ComponentsOfDeferredTaxLiabilitiesAbstract" xlink:label="loc_us-gaap_ComponentsOfDeferredTaxLiabilitiesAbstract_E2F702355B68F99165E907B8CEFC4D4D" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_AD4B76339B5A2427882B07B8CEFA53E9" xlink:to="loc_us-gaap_ComponentsOfDeferredTaxLiabilitiesAbstract_E2F702355B68F99165E907B8CEFC4D4D" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_DeferredTaxLiabilitiesFixedAndIntangibleAssets" xlink:label="loc_dbx_DeferredTaxLiabilitiesFixedAndIntangibleAssets_E61E552BBF371C82A9AA07B8CEFCEEE9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ComponentsOfDeferredTaxLiabilitiesAbstract_E2F702355B68F99165E907B8CEFC4D4D" xlink:to="loc_dbx_DeferredTaxLiabilitiesFixedAndIntangibleAssets_E61E552BBF371C82A9AA07B8CEFCEEE9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxLiabilitiesOther" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesOther_E80819326B3F18BFE98A07B8CEFCA2DB" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ComponentsOfDeferredTaxLiabilitiesAbstract_E2F702355B68F99165E907B8CEFC4D4D" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesOther_E80819326B3F18BFE98A07B8CEFCA2DB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredIncomeTaxLiabilities" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilities_F8570DC0A0D3C76CAA8207B8CEFC5222" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ComponentsOfDeferredTaxLiabilitiesAbstract_E2F702355B68F99165E907B8CEFC4D4D" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilities_F8570DC0A0D3C76CAA8207B8CEFC5222" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsLiabilitiesNet" xlink:label="loc_us-gaap_DeferredTaxAssetsLiabilitiesNet_16D90F84E40D28C2B7B207B8CEFCDC3F" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_AD4B76339B5A2427882B07B8CEFA53E9" xlink:to="loc_us-gaap_DeferredTaxAssetsLiabilitiesNet_16D90F84E40D28C2B7B207B8CEFCDC3F" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/IncomeTaxesComponentsOfIncomeTaxExpenseBenefitDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_77BE54CC2BBAB071DBE307B8CF081119" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CurrentFederalStateAndLocalTaxExpenseBenefitAbstract" xlink:label="loc_us-gaap_CurrentFederalStateAndLocalTaxExpenseBenefitAbstract_F4CD66092AED7C427AB707B8CF088222" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_77BE54CC2BBAB071DBE307B8CF081119" xlink:to="loc_us-gaap_CurrentFederalStateAndLocalTaxExpenseBenefitAbstract_F4CD66092AED7C427AB707B8CF088222" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CurrentFederalTaxExpenseBenefit" xlink:label="loc_us-gaap_CurrentFederalTaxExpenseBenefit_A2B4DDFB799EF6CF07F807B8CF08583C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CurrentFederalStateAndLocalTaxExpenseBenefitAbstract_F4CD66092AED7C427AB707B8CF088222" xlink:to="loc_us-gaap_CurrentFederalTaxExpenseBenefit_A2B4DDFB799EF6CF07F807B8CF08583C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CurrentStateAndLocalTaxExpenseBenefit" xlink:label="loc_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_5EB7416DB5C2305963BC07B8CF096D22" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CurrentFederalStateAndLocalTaxExpenseBenefitAbstract_F4CD66092AED7C427AB707B8CF088222" xlink:to="loc_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_5EB7416DB5C2305963BC07B8CF096D22" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CurrentForeignTaxExpenseBenefit" xlink:label="loc_us-gaap_CurrentForeignTaxExpenseBenefit_A5C177D4E4CFAE8C885C07B8CF09EFBF" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CurrentFederalStateAndLocalTaxExpenseBenefitAbstract_F4CD66092AED7C427AB707B8CF088222" xlink:to="loc_us-gaap_CurrentForeignTaxExpenseBenefit_A5C177D4E4CFAE8C885C07B8CF09EFBF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredFederalStateAndLocalTaxExpenseBenefitAbstract" xlink:label="loc_us-gaap_DeferredFederalStateAndLocalTaxExpenseBenefitAbstract_799410384E3C35D6CBFD07B8CF093A86" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_77BE54CC2BBAB071DBE307B8CF081119" xlink:to="loc_us-gaap_DeferredFederalStateAndLocalTaxExpenseBenefitAbstract_799410384E3C35D6CBFD07B8CF093A86" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredFederalIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_E0B822A1A13888C142BE07B8CF093753" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredFederalStateAndLocalTaxExpenseBenefitAbstract_799410384E3C35D6CBFD07B8CF093A86" xlink:to="loc_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_E0B822A1A13888C142BE07B8CF093753" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_F6009509BFE2EB9AA2A907B8CF0ABD28" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredFederalStateAndLocalTaxExpenseBenefitAbstract_799410384E3C35D6CBFD07B8CF093A86" xlink:to="loc_us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_F6009509BFE2EB9AA2A907B8CF0ABD28" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredForeignIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredForeignIncomeTaxExpenseBenefit_5EE74D23251A8A44E6BA07B8CF0A2C11" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredFederalStateAndLocalTaxExpenseBenefitAbstract_799410384E3C35D6CBFD07B8CF093A86" xlink:to="loc_us-gaap_DeferredForeignIncomeTaxExpenseBenefit_5EE74D23251A8A44E6BA07B8CF0A2C11" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_BDE0F0688F91EB36E39D07B8CF0A6B32" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_77BE54CC2BBAB071DBE307B8CF081119" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_BDE0F0688F91EB36E39D07B8CF0A6B32" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/IncomeTaxesIncomeTaxRateReconciliationDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_90749F3D96A7E7B947DD07B8CF02B61C" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate" xlink:label="loc_us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate_C26FDBAD0D089367340607B8CF0236AC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_90749F3D96A7E7B947DD07B8CF02B61C" xlink:to="loc_us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate_C26FDBAD0D089367340607B8CF0236AC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes" xlink:label="loc_us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes_FF64544F1C51A43AE13607B8CF026D7C" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_90749F3D96A7E7B947DD07B8CF02B61C" xlink:to="loc_us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes_FF64544F1C51A43AE13607B8CF026D7C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential" xlink:label="loc_us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential_C655A1BE0751C3CD14A507B8CF02A5E0" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_90749F3D96A7E7B947DD07B8CF02B61C" xlink:to="loc_us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential_C655A1BE0751C3CD14A507B8CF02A5E0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxReconciliationTaxCredits" xlink:label="loc_us-gaap_IncomeTaxReconciliationTaxCredits_A54051A2162764FFC56F07B8CF03D0FB" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_90749F3D96A7E7B947DD07B8CF02B61C" xlink:to="loc_us-gaap_IncomeTaxReconciliationTaxCredits_A54051A2162764FFC56F07B8CF03D0FB" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_EffectiveIncomeTaxRateReconciliationPermanentDifferencesAmount" xlink:label="loc_dbx_EffectiveIncomeTaxRateReconciliationPermanentDifferencesAmount_821C229FD232B22AC38A07B8CF03B264" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_90749F3D96A7E7B947DD07B8CF02B61C" xlink:to="loc_dbx_EffectiveIncomeTaxRateReconciliationPermanentDifferencesAmount_821C229FD232B22AC38A07B8CF03B264" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate" xlink:label="loc_us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate_EC16360F23B20E7CAAFF07B8CF039CE0" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_90749F3D96A7E7B947DD07B8CF02B61C" xlink:to="loc_us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate_EC16360F23B20E7CAAFF07B8CF039CE0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance" xlink:label="loc_us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance_B693F07C314FFD8BC2A007B8CF0340CD" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_90749F3D96A7E7B947DD07B8CF02B61C" xlink:to="loc_us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance_B693F07C314FFD8BC2A007B8CF0340CD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost" xlink:label="loc_us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost_9F5C3039BCA52A9129C607B8CF037A34" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_90749F3D96A7E7B947DD07B8CF02B61C" xlink:to="loc_us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost_9F5C3039BCA52A9129C607B8CF037A34" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxReconciliationNondeductibleExpenseOther" xlink:label="loc_us-gaap_IncomeTaxReconciliationNondeductibleExpenseOther_E24088B2944882D594BB07B8CF033FEC" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_90749F3D96A7E7B947DD07B8CF02B61C" xlink:to="loc_us-gaap_IncomeTaxReconciliationNondeductibleExpenseOther_E24088B2944882D594BB07B8CF033FEC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_B0B8A711EFE4C7FCE70507B8CF03C29B" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_90749F3D96A7E7B947DD07B8CF02B61C" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_B0B8A711EFE4C7FCE70507B8CF03C29B" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/IncomeTaxesNarrativeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_771FB4B662410FA934A807B8CEEC020A" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLossCarryforwardsTable" xlink:label="loc_us-gaap_OperatingLossCarryforwardsTable_1FE23D136AEF7B9F7DF207B8CEED52DF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_771FB4B662410FA934A807B8CEEC020A" xlink:to="loc_us-gaap_OperatingLossCarryforwardsTable_1FE23D136AEF7B9F7DF207B8CEED52DF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxAuthorityAxis" xlink:label="loc_us-gaap_IncomeTaxAuthorityAxis_B8B8CAB84A410DB8B99D07B8CEED7224" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsTable_1FE23D136AEF7B9F7DF207B8CEED52DF" xlink:to="loc_us-gaap_IncomeTaxAuthorityAxis_B8B8CAB84A410DB8B99D07B8CEED7224" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxAuthorityDomain" xlink:label="loc_us-gaap_IncomeTaxAuthorityDomain_31D0208DD02C6AE07B5F07B8CEED66E2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxAuthorityAxis_B8B8CAB84A410DB8B99D07B8CEED7224" xlink:to="loc_us-gaap_IncomeTaxAuthorityDomain_31D0208DD02C6AE07B5F07B8CEED66E2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DomesticCountryMember" xlink:label="loc_us-gaap_DomesticCountryMember_3B270D23B5632747CCE207B8CEED024B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxAuthorityDomain_31D0208DD02C6AE07B5F07B8CEED66E2" xlink:to="loc_us-gaap_DomesticCountryMember_3B270D23B5632747CCE207B8CEED024B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StateAndLocalJurisdictionMember" xlink:label="loc_us-gaap_StateAndLocalJurisdictionMember_61D30565CBADDD01335B07B8CEEEC43F" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxAuthorityDomain_31D0208DD02C6AE07B5F07B8CEED66E2" xlink:to="loc_us-gaap_StateAndLocalJurisdictionMember_61D30565CBADDD01335B07B8CEEEC43F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ForeignCountryMember" xlink:label="loc_us-gaap_ForeignCountryMember_E4724C8C985A92CFB89D07B8CEEEF552" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxAuthorityDomain_31D0208DD02C6AE07B5F07B8CEED66E2" xlink:to="loc_us-gaap_ForeignCountryMember_E4724C8C985A92CFB89D07B8CEEEF552" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TaxCreditCarryforwardAxis" xlink:label="loc_us-gaap_TaxCreditCarryforwardAxis_CA21C2DE7181610D494C07B8CEEEE663" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsTable_1FE23D136AEF7B9F7DF207B8CEED52DF" xlink:to="loc_us-gaap_TaxCreditCarryforwardAxis_CA21C2DE7181610D494C07B8CEEEE663" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TaxCreditCarryforwardNameDomain" xlink:label="loc_us-gaap_TaxCreditCarryforwardNameDomain_CD3D97E49A014E744CD907B8CEEEC867" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TaxCreditCarryforwardAxis_CA21C2DE7181610D494C07B8CEEEE663" xlink:to="loc_us-gaap_TaxCreditCarryforwardNameDomain_CD3D97E49A014E744CD907B8CEEEC867" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ResearchMember" xlink:label="loc_us-gaap_ResearchMember_A09A8D9829A43866D29807B8CEEF59C3" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TaxCreditCarryforwardNameDomain_CD3D97E49A014E744CD907B8CEEEC867" xlink:to="loc_us-gaap_ResearchMember_A09A8D9829A43866D29807B8CEEF59C3" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_StateEnterpriseTaxCreditCarryforwardMember" xlink:label="loc_dbx_StateEnterpriseTaxCreditCarryforwardMember_5C07101A67BEE23B6C5C07B8CEEF4EFF" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TaxCreditCarryforwardNameDomain_CD3D97E49A014E744CD907B8CEEEC867" xlink:to="loc_dbx_StateEnterpriseTaxCreditCarryforwardMember_5C07101A67BEE23B6C5C07B8CEEF4EFF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLossCarryforwardsLineItems" xlink:label="loc_us-gaap_OperatingLossCarryforwardsLineItems_F5774837175CFF2FBBA907B8CEEF4ED4" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsTable_1FE23D136AEF7B9F7DF207B8CEED52DF" xlink:to="loc_us-gaap_OperatingLossCarryforwardsLineItems_F5774837175CFF2FBBA907B8CEEF4ED4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_F9368E24131AF0ACAE0907B8CEEF31E7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_F5774837175CFF2FBBA907B8CEEF4ED4" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_F9368E24131AF0ACAE0907B8CEEF31E7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLossCarryforwards" xlink:label="loc_us-gaap_OperatingLossCarryforwards_BE18804AC8DC86D4D70A07B8CEEF74D4" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_F5774837175CFF2FBBA907B8CEEF4ED4" xlink:to="loc_us-gaap_OperatingLossCarryforwards_BE18804AC8DC86D4D70A07B8CEEF74D4" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_OperatingLossCarryforwardsSubjectToExpiration" xlink:label="loc_dbx_OperatingLossCarryforwardsSubjectToExpiration_67FF3F27768C9F3AE9AB07B8CEEF38D1" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_F5774837175CFF2FBBA907B8CEEF4ED4" xlink:to="loc_dbx_OperatingLossCarryforwardsSubjectToExpiration_67FF3F27768C9F3AE9AB07B8CEEF38D1" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_OperatingLossCarryforwardsNotSubjectToExpiration" xlink:label="loc_dbx_OperatingLossCarryforwardsNotSubjectToExpiration_5557DA89DEE3492CC33207B8CEF005EB" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_F5774837175CFF2FBBA907B8CEEF4ED4" xlink:to="loc_dbx_OperatingLossCarryforwardsNotSubjectToExpiration_5557DA89DEE3492CC33207B8CEF005EB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TaxCreditCarryforwardAmount" xlink:label="loc_us-gaap_TaxCreditCarryforwardAmount_3E2FA7A99A33415F3C8407B8CEF074A1" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_F5774837175CFF2FBBA907B8CEEF4ED4" xlink:to="loc_us-gaap_TaxCreditCarryforwardAmount_3E2FA7A99A33415F3C8407B8CEF074A1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TaxCreditCarryforwardValuationAllowance" xlink:label="loc_us-gaap_TaxCreditCarryforwardValuationAllowance_6345E74F38807FB135F807B8CEF0E2DC" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_F5774837175CFF2FBBA907B8CEEF4ED4" xlink:to="loc_us-gaap_TaxCreditCarryforwardValuationAllowance_6345E74F38807FB135F807B8CEF0E2DC" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_OperatingLossCarryforwardsAcquired" xlink:label="loc_dbx_OperatingLossCarryforwardsAcquired_622E93CF88563893C58807B8CEF00BC1" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_F5774837175CFF2FBBA907B8CEEF4ED4" xlink:to="loc_dbx_OperatingLossCarryforwardsAcquired_622E93CF88563893C58807B8CEF00BC1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_UnrecognizedTaxBenefits" xlink:label="loc_us-gaap_UnrecognizedTaxBenefits_B63CB2430E84D93AE7C807B8CEF080D1" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_F5774837175CFF2FBBA907B8CEEF4ED4" xlink:to="loc_us-gaap_UnrecognizedTaxBenefits_B63CB2430E84D93AE7C807B8CEF080D1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate_10EF974AF0D55EFAC6D507B8CEF17098" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_F5774837175CFF2FBBA907B8CEEF4ED4" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate_10EF974AF0D55EFAC6D507B8CEF17098" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRateAdjustmentToDeferredTaxAssetsAndValuationAllowance" xlink:label="loc_dbx_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRateAdjustmentToDeferredTaxAssetsAndValuationAllowance_A55A47103A314B1E1A4C07B8CEF1AB8E" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_F5774837175CFF2FBBA907B8CEEF4ED4" xlink:to="loc_dbx_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRateAdjustmentToDeferredTaxAssetsAndValuationAllowance_A55A47103A314B1E1A4C07B8CEF1AB8E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxExaminationPenaltiesAndInterestAccrued" xlink:label="loc_us-gaap_IncomeTaxExaminationPenaltiesAndInterestAccrued_4997CB8871EE36FF4BB507B8CEF10139" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_F5774837175CFF2FBBA907B8CEEF4ED4" xlink:to="loc_us-gaap_IncomeTaxExaminationPenaltiesAndInterestAccrued_4997CB8871EE36FF4BB507B8CEF10139" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxExaminationPenaltiesAndInterestExpense" xlink:label="loc_us-gaap_IncomeTaxExaminationPenaltiesAndInterestExpense_2B5E6A9B939AB57E0D8207B8CEF13EE2" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_F5774837175CFF2FBBA907B8CEEF4ED4" xlink:to="loc_us-gaap_IncomeTaxExaminationPenaltiesAndInterestExpense_2B5E6A9B939AB57E0D8207B8CEF13EE2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_UndistributedEarningsOfForeignSubsidiaries" xlink:label="loc_us-gaap_UndistributedEarningsOfForeignSubsidiaries_E80F90036819C567F7C307B8CEF1DF28" xlink:type="locator" />
    <link:presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_F5774837175CFF2FBBA907B8CEEF4ED4" xlink:to="loc_us-gaap_UndistributedEarningsOfForeignSubsidiaries_E80F90036819C567F7C307B8CEF1DF28" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_TaxCutsAndJobsActOf2017IncompleteAccountingChangeInTaxRateDeferredTaxAssetProvisionalIncomeTaxExpense" xlink:label="loc_dbx_TaxCutsAndJobsActOf2017IncompleteAccountingChangeInTaxRateDeferredTaxAssetProvisionalIncomeTaxExpense_0D5B67601C74E2A93C0D07B8CEF1C00B" xlink:type="locator" />
    <link:presentationArc order="14" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_F5774837175CFF2FBBA907B8CEEF4ED4" xlink:to="loc_dbx_TaxCutsAndJobsActOf2017IncompleteAccountingChangeInTaxRateDeferredTaxAssetProvisionalIncomeTaxExpense_0D5B67601C74E2A93C0D07B8CEF1C00B" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_TaxCutsAndJobsActOf2017AlternativeMinimumTaxIncomeTaxBenefit" xlink:label="loc_dbx_TaxCutsAndJobsActOf2017AlternativeMinimumTaxIncomeTaxBenefit_2753A118FE8CEBEDDA7707B8CEF16F47" xlink:type="locator" />
    <link:presentationArc order="15" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_F5774837175CFF2FBBA907B8CEEF4ED4" xlink:to="loc_dbx_TaxCutsAndJobsActOf2017AlternativeMinimumTaxIncomeTaxBenefit_2753A118FE8CEBEDDA7707B8CEF16F47" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_TaxCutsAndJobsActOf2017TransitionTaxForAccumulatedForeignEarningsProvisionalIncomeTaxExpense" xlink:label="loc_dbx_TaxCutsAndJobsActOf2017TransitionTaxForAccumulatedForeignEarningsProvisionalIncomeTaxExpense_51BCC31416223C1FEE3407B8CEF2085F" xlink:type="locator" />
    <link:presentationArc order="16" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_F5774837175CFF2FBBA907B8CEEF4ED4" xlink:to="loc_dbx_TaxCutsAndJobsActOf2017TransitionTaxForAccumulatedForeignEarningsProvisionalIncomeTaxExpense_51BCC31416223C1FEE3407B8CEF2085F" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/IncomeTaxesReconciliationOfUnrecognizedTaxBenefitsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_90E8D0DC6CC4F1B6A4B107B8CEE78FA9" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward" xlink:label="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_1A8AF09E5BB011DA454F07B8CEE7C79F" xlink:type="locator" />
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_90E8D0DC6CC4F1B6A4B107B8CEE78FA9" xlink:to="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_1A8AF09E5BB011DA454F07B8CEE7C79F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_UnrecognizedTaxBenefits" xlink:label="loc_us-gaap_UnrecognizedTaxBenefits_9B1EDBD03BF5DD227C6A07B8CEE77870" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_1A8AF09E5BB011DA454F07B8CEE7C79F" xlink:to="loc_us-gaap_UnrecognizedTaxBenefits_9B1EDBD03BF5DD227C6A07B8CEE77870" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions_C27620F0ACD1FFC2657107B8CEE8E1B6" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_1A8AF09E5BB011DA454F07B8CEE7C79F" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions_C27620F0ACD1FFC2657107B8CEE8E1B6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions_071BCCA450600E521F4007B8CEE84FDE" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_1A8AF09E5BB011DA454F07B8CEE7C79F" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions_071BCCA450600E521F4007B8CEE84FDE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_UnrecognizedTaxBenefits" xlink:label="loc_us-gaap_UnrecognizedTaxBenefits_25C2BD1821C61D1F3DC807B8CEE867B0" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_1A8AF09E5BB011DA454F07B8CEE7C79F" xlink:to="loc_us-gaap_UnrecognizedTaxBenefits_25C2BD1821C61D1F3DC807B8CEE867B0" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/IncomeTaxesScheduleOfLossFromContinuingOperationsBeforeIncomeTaxesDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_F63AABE2EFC4BF93D26507B8CF0D48BD" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic_F19651CC777D59E305E107B8CF0D4A45" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_F63AABE2EFC4BF93D26507B8CF0D48BD" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic_F19651CC777D59E305E107B8CF0D4A45" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign_5AEA208533BFA615858907B8CF0E8197" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_F63AABE2EFC4BF93D26507B8CF0D48BD" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign_5AEA208533BFA615858907B8CF0E8197" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_30595D7F1E3163EC5A0C07B8CF0E6301" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_F63AABE2EFC4BF93D26507B8CF0D48BD" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_30595D7F1E3163EC5A0C07B8CF0E6301" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/IncomeTaxesTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_B4D5867BEFB0C2C14A5F07B8CF103CEB" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock_2B8470D205C67892F75907B8CF10B9E3" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_B4D5867BEFB0C2C14A5F07B8CF103CEB" xlink:to="loc_us-gaap_ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock_2B8470D205C67892F75907B8CF10B9E3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock_63C1524AF8D8DAFD94EB07B8CF10D63D" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_B4D5867BEFB0C2C14A5F07B8CF103CEB" xlink:to="loc_us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock_63C1524AF8D8DAFD94EB07B8CF10D63D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_297C8F29DE226099D64D07B8CF11904B" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_B4D5867BEFB0C2C14A5F07B8CF103CEB" xlink:to="loc_us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_297C8F29DE226099D64D07B8CF11904B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock_1ADFAB8C848A4268492207B8CF116CD7" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_B4D5867BEFB0C2C14A5F07B8CF103CEB" xlink:to="loc_us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock_1ADFAB8C848A4268492207B8CF116CD7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfUnrecognizedTaxBenefitsRollForwardTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfUnrecognizedTaxBenefitsRollForwardTableTextBlock_B2DD26E84FDBF25CCB1407B8CF117074" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_B4D5867BEFB0C2C14A5F07B8CF103CEB" xlink:to="loc_us-gaap_ScheduleOfUnrecognizedTaxBenefitsRollForwardTableTextBlock_B2DD26E84FDBF25CCB1407B8CF117074" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/IntangibleAssetsNet" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_92CD8C9D8E8F8C562B0F07B8CFBB1750" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IntangibleAssetsDisclosureTextBlock" xlink:label="loc_us-gaap_IntangibleAssetsDisclosureTextBlock_48F58CFB6261BEA60BE807B8CFBB8027" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_92CD8C9D8E8F8C562B0F07B8CFBB1750" xlink:to="loc_us-gaap_IntangibleAssetsDisclosureTextBlock_48F58CFB6261BEA60BE807B8CFBB8027" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/IntangibleAssetsNetScheduleOfFutureAmortizationExpenseDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_04D6D60052D0DFF2BDFC07B8CFAC1A64" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AmortizationOfIntangibleAssets" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_7A7F9DEFB0E8912ECE9E07B8CFAC8A6E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_04D6D60052D0DFF2BDFC07B8CFAC1A64" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_7A7F9DEFB0E8912ECE9E07B8CFAC8A6E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseCurrentAndFiveSucceedingFiscalYearsAbstract" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseCurrentAndFiveSucceedingFiscalYearsAbstract_18A80B33C5F1040C6C6807B8CFAC0152" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_04D6D60052D0DFF2BDFC07B8CFAC1A64" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseCurrentAndFiveSucceedingFiscalYearsAbstract_18A80B33C5F1040C6C6807B8CFAC0152" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_A5544CB7D02E71FAF79307B8CFAC8D22" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseCurrentAndFiveSucceedingFiscalYearsAbstract_18A80B33C5F1040C6C6807B8CFAC0152" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_A5544CB7D02E71FAF79307B8CFAC8D22" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_030F0E8F7CD1018550E907B8CFAD1A71" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseCurrentAndFiveSucceedingFiscalYearsAbstract_18A80B33C5F1040C6C6807B8CFAC0152" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_030F0E8F7CD1018550E907B8CFAD1A71" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_F840F10B0594879C2DF307B8CFADFF28" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseCurrentAndFiveSucceedingFiscalYearsAbstract_18A80B33C5F1040C6C6807B8CFAC0152" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_F840F10B0594879C2DF307B8CFADFF28" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_A5F597D2BE6127931B2C07B8CFADBFFB" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseCurrentAndFiveSucceedingFiscalYearsAbstract_18A80B33C5F1040C6C6807B8CFAC0152" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_A5F597D2BE6127931B2C07B8CFADBFFB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_89C9BDDF2C0D2915E59907B8CFADCCD0" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseCurrentAndFiveSucceedingFiscalYearsAbstract_18A80B33C5F1040C6C6807B8CFAC0152" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_89C9BDDF2C0D2915E59907B8CFADCCD0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive_2F480290412C4328355807B8CFADCA43" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseCurrentAndFiveSucceedingFiscalYearsAbstract_18A80B33C5F1040C6C6807B8CFAC0152" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive_2F480290412C4328355807B8CFADCA43" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_C88544A98BA2C54B58EA07B8CFAD2E16" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseCurrentAndFiveSucceedingFiscalYearsAbstract_18A80B33C5F1040C6C6807B8CFAC0152" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_C88544A98BA2C54B58EA07B8CFAD2E16" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/IntangibleAssetsNetScheduleOfIntangibleAssetsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_A9DEBDB664C35A87B7E207B8CFB21F0B" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_83D1AA96F901684A3DB407B8CFB29DA9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_A9DEBDB664C35A87B7E207B8CFB21F0B" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_83D1AA96F901684A3DB407B8CFB29DA9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_1BA1DDDB3FC4860278FE07B8CFB38D74" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_83D1AA96F901684A3DB407B8CFB29DA9" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_1BA1DDDB3FC4860278FE07B8CFB38D74" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_F5533A0A0F9EB64BD21C07B8CFB30516" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_1BA1DDDB3FC4860278FE07B8CFB38D74" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_F5533A0A0F9EB64BD21C07B8CFB30516" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DevelopedTechnologyRightsMember" xlink:label="loc_us-gaap_DevelopedTechnologyRightsMember_D26FD32C296BE2D4BDD307B8CFB3DCAC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_F5533A0A0F9EB64BD21C07B8CFB30516" xlink:to="loc_us-gaap_DevelopedTechnologyRightsMember_D26FD32C296BE2D4BDD307B8CFB3DCAC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PatentsMember" xlink:label="loc_us-gaap_PatentsMember_C5B2E1723741E8FD2CF707B8CFB38BEF" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_F5533A0A0F9EB64BD21C07B8CFB30516" xlink:to="loc_us-gaap_PatentsMember_C5B2E1723741E8FD2CF707B8CFB38BEF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ComputerSoftwareIntangibleAssetMember" xlink:label="loc_us-gaap_ComputerSoftwareIntangibleAssetMember_A67C04F0C20B8A0E6D0207B8CFB4B006" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_F5533A0A0F9EB64BD21C07B8CFB30516" xlink:to="loc_us-gaap_ComputerSoftwareIntangibleAssetMember_A67C04F0C20B8A0E6D0207B8CFB4B006" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_AssembledWorkforceInAssetAcquisitionMember" xlink:label="loc_dbx_AssembledWorkforceInAssetAcquisitionMember_DC908285568C741DD2C007B8CFB4736B" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_F5533A0A0F9EB64BD21C07B8CFB30516" xlink:to="loc_dbx_AssembledWorkforceInAssetAcquisitionMember_DC908285568C741DD2C007B8CFB4736B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LicensingAgreementsMember" xlink:label="loc_us-gaap_LicensingAgreementsMember_737762EBD9832122958E07B8CFB4A7BB" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_F5533A0A0F9EB64BD21C07B8CFB30516" xlink:to="loc_us-gaap_LicensingAgreementsMember_737762EBD9832122958E07B8CFB4A7BB" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_NoncompeteAgreementsTrademarksAndOtherIntangibleAssetsMember" xlink:label="loc_dbx_NoncompeteAgreementsTrademarksAndOtherIntangibleAssetsMember_59D3EA6E58547260441F07B8CFB46124" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_F5533A0A0F9EB64BD21C07B8CFB30516" xlink:to="loc_dbx_NoncompeteAgreementsTrademarksAndOtherIntangibleAssetsMember_59D3EA6E58547260441F07B8CFB46124" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_RangeAxis" xlink:label="loc_srt_RangeAxis_E9F437633663E72AC70C07B8CFB498B9" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_83D1AA96F901684A3DB407B8CFB29DA9" xlink:to="loc_srt_RangeAxis_E9F437633663E72AC70C07B8CFB498B9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_RangeMember" xlink:label="loc_srt_RangeMember_E16CC4CFF5BCA4CD835F07B8CFB445FA" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeAxis_E9F437633663E72AC70C07B8CFB498B9" xlink:to="loc_srt_RangeMember_E16CC4CFF5BCA4CD835F07B8CFB445FA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_WeightedAverageMember" xlink:label="loc_srt_WeightedAverageMember_D8BE6EA309005751A09307B8CFB54A60" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_E16CC4CFF5BCA4CD835F07B8CFB445FA" xlink:to="loc_srt_WeightedAverageMember_D8BE6EA309005751A09307B8CFB54A60" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_FBB5F2D6B1309CF5537607B8CFB5CA5A" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_83D1AA96F901684A3DB407B8CFB29DA9" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_FBB5F2D6B1309CF5537607B8CFB5CA5A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IntangibleAssetsGrossExcludingGoodwill" xlink:label="loc_us-gaap_IntangibleAssetsGrossExcludingGoodwill_6BC9A3D6E36E7B896B6607B8CFB520FB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_FBB5F2D6B1309CF5537607B8CFB5CA5A" xlink:to="loc_us-gaap_IntangibleAssetsGrossExcludingGoodwill_6BC9A3D6E36E7B896B6607B8CFB520FB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_3AB28C14C79B9BA6F66B07B8CFB50089" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_FBB5F2D6B1309CF5537607B8CFB5CA5A" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_3AB28C14C79B9BA6F66B07B8CFB50089" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_768C7329E491644007DF07B8CFB6B390" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_FBB5F2D6B1309CF5537607B8CFB5CA5A" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_768C7329E491644007DF07B8CFB6B390" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetUsefulLife" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_4501289B2C7B548A864107B8CFB6D247" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_FBB5F2D6B1309CF5537607B8CFB5CA5A" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_4501289B2C7B548A864107B8CFB6D247" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/IntangibleAssetsNetTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_D73D1186E2FEBCA5D87007B8CFB94699" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock_9F6AD6F994801A0DB10907B8CFB966FB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_D73D1186E2FEBCA5D87007B8CFB94699" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock_9F6AD6F994801A0DB10907B8CFB966FB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock" xlink:label="loc_us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock_CCE56DB990FBE18DC39307B8CFB9656C" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_D73D1186E2FEBCA5D87007B8CFB94699" xlink:to="loc_us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock_CCE56DB990FBE18DC39307B8CFB9656C" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/NetLossPerShare" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="loc_us-gaap_EarningsPerShareAbstract_B03368388F7C6B7EC9EE07B8CF249CCD" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EarningsPerShareTextBlock" xlink:label="loc_us-gaap_EarningsPerShareTextBlock_E2ACBE0539E9F010482E07B8CF240403" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_B03368388F7C6B7EC9EE07B8CF249CCD" xlink:to="loc_us-gaap_EarningsPerShareTextBlock_E2ACBE0539E9F010482E07B8CF240403" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/NetLossPerShareScheduleOfEarningsPerShareBasicAndDilutedDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="loc_us-gaap_EarningsPerShareAbstract_D378FA8596926D56685807B8CF1E829F" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfStockByClassTable" xlink:label="loc_us-gaap_ScheduleOfStockByClassTable_E9C610D9CD092BAE7B7507B8CF1E9020" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_D378FA8596926D56685807B8CF1E829F" xlink:to="loc_us-gaap_ScheduleOfStockByClassTable_E9C610D9CD092BAE7B7507B8CF1E9020" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_15F94372340BFB3EDC5707B8CF1EACA0" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_E9C610D9CD092BAE7B7507B8CF1E9020" xlink:to="loc_us-gaap_StatementClassOfStockAxis_15F94372340BFB3EDC5707B8CF1EACA0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_8C9CCD4858ECFD59881107B8CF1E1CE6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementClassOfStockAxis_15F94372340BFB3EDC5707B8CF1EACA0" xlink:to="loc_us-gaap_ClassOfStockDomain_8C9CCD4858ECFD59881107B8CF1E1CE6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonClassAMember" xlink:label="loc_us-gaap_CommonClassAMember_85617EFE5FBA2C53B3AD07B8CF1F8B4A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_8C9CCD4858ECFD59881107B8CF1E1CE6" xlink:to="loc_us-gaap_CommonClassAMember_85617EFE5FBA2C53B3AD07B8CF1F8B4A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonClassBMember" xlink:label="loc_us-gaap_CommonClassBMember_908B450D6E8B85F62C1207B8CF1FCBF7" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_8C9CCD4858ECFD59881107B8CF1E1CE6" xlink:to="loc_us-gaap_CommonClassBMember_908B450D6E8B85F62C1207B8CF1FCBF7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ClassOfStockLineItems" xlink:label="loc_us-gaap_ClassOfStockLineItems_C41C3DAC552B1C7E4C2107B8CF1F5679" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_E9C610D9CD092BAE7B7507B8CF1E9020" xlink:to="loc_us-gaap_ClassOfStockLineItems_C41C3DAC552B1C7E4C2107B8CF1F5679" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_0007FA91964A066F641507B8CF1F07D6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_C41C3DAC552B1C7E4C2107B8CF1F5679" xlink:to="loc_us-gaap_NetIncomeLoss_0007FA91964A066F641507B8CF1F07D6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted" xlink:label="loc_us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted_A941FE9F1806291A6A0E07B8CF207EF3" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_C41C3DAC552B1C7E4C2107B8CF1F5679" xlink:to="loc_us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted_A941FE9F1806291A6A0E07B8CF207EF3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EarningsPerShareBasicAndDiluted" xlink:label="loc_us-gaap_EarningsPerShareBasicAndDiluted_ADF42B1E99D7DDA563F007B8CF20D4B6" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_C41C3DAC552B1C7E4C2107B8CF1F5679" xlink:to="loc_us-gaap_EarningsPerShareBasicAndDiluted_ADF42B1E99D7DDA563F007B8CF20D4B6" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/NetLossPerShareScheduleOfPotentiallyDilutiveSecuritiesExcludedFromComputationOfEarningsPerShareDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="loc_us-gaap_EarningsPerShareAbstract_A8A6CF14F5D89B61000C07B8CF179172" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable" xlink:label="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_2003B69F06CE60987D1007B8CF17B2B0" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_A8A6CF14F5D89B61000C07B8CF179172" xlink:to="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_2003B69F06CE60987D1007B8CF17B2B0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_A98973DAB3434E356A6707B8CF173CDD" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_2003B69F06CE60987D1007B8CF17B2B0" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_A98973DAB3434E356A6707B8CF173CDD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AntidilutiveSecuritiesNameDomain" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_BA54629F4E890CED3B7C07B8CF17172C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_A98973DAB3434E356A6707B8CF173CDD" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_BA54629F4E890CED3B7C07B8CF17172C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConvertiblePreferredStockMember" xlink:label="loc_us-gaap_ConvertiblePreferredStockMember_54483C03D4ABB6D0E50107B8CF186DF9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_BA54629F4E890CED3B7C07B8CF17172C" xlink:to="loc_us-gaap_ConvertiblePreferredStockMember_54483C03D4ABB6D0E50107B8CF186DF9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestrictedStockUnitsRSUMember" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_8A7725BE8C59215488F507B8CF18F1F4" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_BA54629F4E890CED3B7C07B8CF17172C" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_8A7725BE8C59215488F507B8CF18F1F4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EmployeeStockOptionMember" xlink:label="loc_us-gaap_EmployeeStockOptionMember_6C5B20E1AF760C2083D207B8CF180B1C" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_BA54629F4E890CED3B7C07B8CF17172C" xlink:to="loc_us-gaap_EmployeeStockOptionMember_6C5B20E1AF760C2083D207B8CF180B1C" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_CoFounderGrantsMember" xlink:label="loc_dbx_CoFounderGrantsMember_001EA6474E7AB957292407B8CF184AD8" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_BA54629F4E890CED3B7C07B8CF17172C" xlink:to="loc_dbx_CoFounderGrantsMember_001EA6474E7AB957292407B8CF184AD8" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_SharesSubjectToRepurchaseMember" xlink:label="loc_dbx_SharesSubjectToRepurchaseMember_1DA4568ABECF65A1896807B8CF19EE4F" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_BA54629F4E890CED3B7C07B8CF17172C" xlink:to="loc_dbx_SharesSubjectToRepurchaseMember_1DA4568ABECF65A1896807B8CF19EE4F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PlanNameAxis" xlink:label="loc_us-gaap_PlanNameAxis_798EDF6F06373A6EE42B07B8CF1953C4" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_2003B69F06CE60987D1007B8CF17B2B0" xlink:to="loc_us-gaap_PlanNameAxis_798EDF6F06373A6EE42B07B8CF1953C4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PlanNameDomain" xlink:label="loc_us-gaap_PlanNameDomain_68CF5303E5C9A33CB2FD07B8CF1978CB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanNameAxis_798EDF6F06373A6EE42B07B8CF1953C4" xlink:to="loc_us-gaap_PlanNameDomain_68CF5303E5C9A33CB2FD07B8CF1978CB" xlink:type="arc" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanNameDomain_68CF5303E5C9A33CB2FD07B8CF1978CB" xlink:to="loc_dbx_CoFounderGrantsMember_001EA6474E7AB957292407B8CF184AD8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_73A622F38FBE7ABD648B07B8CF196498" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_2003B69F06CE60987D1007B8CF17B2B0" xlink:to="loc_us-gaap_AwardTypeAxis_73A622F38FBE7ABD648B07B8CF196498" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_EE10F445520B5158C11207B8CF19E820" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_73A622F38FBE7ABD648B07B8CF196498" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_EE10F445520B5158C11207B8CF19E820" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestrictedStockMember" xlink:label="loc_us-gaap_RestrictedStockMember_E5C17C0D97E622B8BCC007B8CF1ABA12" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_EE10F445520B5158C11207B8CF19E820" xlink:to="loc_us-gaap_RestrictedStockMember_E5C17C0D97E622B8BCC007B8CF1ABA12" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_88C90E3F9ACD5E5D052F07B8CF1A0BF3" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_2003B69F06CE60987D1007B8CF17B2B0" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_88C90E3F9ACD5E5D052F07B8CF1A0BF3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_60E2E7BB8A14821D869407B8CF1A060E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_88C90E3F9ACD5E5D052F07B8CF1A0BF3" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_60E2E7BB8A14821D869407B8CF1A060E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_530A683F2AC9A3FFA96307B8CF1A6A87" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_88C90E3F9ACD5E5D052F07B8CF1A0BF3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_530A683F2AC9A3FFA96307B8CF1A6A87" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/NetLossPerShareTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="loc_us-gaap_EarningsPerShareAbstract_98B7223795A0658BA02707B8CF222DE9" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_79580829E7657354BF4207B8CF228489" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_98B7223795A0658BA02707B8CF222DE9" xlink:to="loc_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_79580829E7657354BF4207B8CF228489" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock" xlink:label="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock_F266FA134DA12BA4DF8607B8CF23C86F" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_98B7223795A0658BA02707B8CF222DE9" xlink:to="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock_F266FA134DA12BA4DF8607B8CF23C86F" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/PropertyAndEquipmentNet" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAbstract" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAbstract_DBB6BFE9874DBEED931907B8CFD08A83" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock_BC26348F18D56AAA046107B8CFD15948" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentAbstract_DBB6BFE9874DBEED931907B8CFD08A83" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock_BC26348F18D56AAA046107B8CFD15948" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/PropertyAndEquipmentNetNarrativeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAbstract" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAbstract_381DC051AB6272152C3A07B8CFC18DAD" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_8A85F76929AB604A629407B8CFC18ECA" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentAbstract_381DC051AB6272152C3A07B8CFC18DAD" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_8A85F76929AB604A629407B8CFC18ECA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BalanceSheetLocationAxis" xlink:label="loc_us-gaap_BalanceSheetLocationAxis_9CE99EFC95EEC18E20E107B8CFC15C26" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_8A85F76929AB604A629407B8CFC18ECA" xlink:to="loc_us-gaap_BalanceSheetLocationAxis_9CE99EFC95EEC18E20E107B8CFC15C26" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BalanceSheetLocationDomain" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_AC5B3226374BC570A38707B8CFC22913" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_9CE99EFC95EEC18E20E107B8CFC15C26" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_AC5B3226374BC570A38707B8CFC22913" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_AccruedAndOtherCurrentLiabilitiesMember" xlink:label="loc_dbx_AccruedAndOtherCurrentLiabilitiesMember_2F8088053826BFA4778F07B8CFC2023B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_AC5B3226374BC570A38707B8CFC22913" xlink:to="loc_dbx_AccruedAndOtherCurrentLiabilitiesMember_2F8088053826BFA4778F07B8CFC2023B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherNoncurrentLiabilitiesMember" xlink:label="loc_us-gaap_OtherNoncurrentLiabilitiesMember_33F1E6B605FE3D7F24AA07B8CFC27522" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_AC5B3226374BC570A38707B8CFC22913" xlink:to="loc_us-gaap_OtherNoncurrentLiabilitiesMember_33F1E6B605FE3D7F24AA07B8CFC27522" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_8E43319BB688C5EEC31507B8CFC22C6B" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_8A85F76929AB604A629407B8CFC18ECA" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_8E43319BB688C5EEC31507B8CFC22C6B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_B28A077683557EB2E63E07B8CFC38D29" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_8E43319BB688C5EEC31507B8CFC22C6B" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_B28A077683557EB2E63E07B8CFC38D29" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BuildingMember" xlink:label="loc_us-gaap_BuildingMember_FFE9A3128580F0F611C807B8CFC34189" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_B28A077683557EB2E63E07B8CFC38D29" xlink:to="loc_us-gaap_BuildingMember_FFE9A3128580F0F611C807B8CFC34189" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AssetsHeldUnderCapitalLeasesMember" xlink:label="loc_us-gaap_AssetsHeldUnderCapitalLeasesMember_1118F579FD8B0569712007B8CFC37464" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_B28A077683557EB2E63E07B8CFC38D29" xlink:to="loc_us-gaap_AssetsHeldUnderCapitalLeasesMember_1118F579FD8B0569712007B8CFC37464" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_7CB7FDCCB1176CB0DE4607B8CFC3D7B3" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_8A85F76929AB604A629407B8CFC18ECA" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentLineItems_7CB7FDCCB1176CB0DE4607B8CFC3D7B3" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_PropertyPlantAndEquipmentGrossAmountDerecognized" xlink:label="loc_dbx_PropertyPlantAndEquipmentGrossAmountDerecognized_825313D951B7B5EC1C1F07B8CFC3DA29" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_7CB7FDCCB1176CB0DE4607B8CFC3D7B3" xlink:to="loc_dbx_PropertyPlantAndEquipmentGrossAmountDerecognized_825313D951B7B5EC1C1F07B8CFC3DA29" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipmentDerecognized" xlink:label="loc_dbx_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipmentDerecognized_1C044B03F1D2AE8A42BA07B8CFC40C43" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_7CB7FDCCB1176CB0DE4607B8CFC3D7B3" xlink:to="loc_dbx_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipmentDerecognized_1C044B03F1D2AE8A42BA07B8CFC40C43" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_ImputedFinancingLeaseObligationDerecognized" xlink:label="loc_dbx_ImputedFinancingLeaseObligationDerecognized_70D667B6B9AD073370AD07B8CFC4569D" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_7CB7FDCCB1176CB0DE4607B8CFC3D7B3" xlink:to="loc_dbx_ImputedFinancingLeaseObligationDerecognized_70D667B6B9AD073370AD07B8CFC4569D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_662588D533467550729307B8CFC405C0" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_7CB7FDCCB1176CB0DE4607B8CFC3D7B3" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_662588D533467550729307B8CFC405C0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_49A50213DC20D92C2A6907B8CFC44379" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_7CB7FDCCB1176CB0DE4607B8CFC3D7B3" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_49A50213DC20D92C2A6907B8CFC44379" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Depreciation" xlink:label="loc_us-gaap_Depreciation_3B6BD1383E635C7EF44707B8CFC4F1A9" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_7CB7FDCCB1176CB0DE4607B8CFC3D7B3" xlink:to="loc_us-gaap_Depreciation_3B6BD1383E635C7EF44707B8CFC4F1A9" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/PropertyAndEquipmentNetScheduleOfPropertyAndEquipmentNetDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAbstract" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAbstract_93FFE8201F26ED2D48B307B8CFC970CE" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_2D05426C6784E12932A907B8CFC93D63" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentAbstract_93FFE8201F26ED2D48B307B8CFC970CE" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_2D05426C6784E12932A907B8CFC93D63" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_D8504DC2E039CD3D506207B8CFCA9BB0" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_2D05426C6784E12932A907B8CFC93D63" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_D8504DC2E039CD3D506207B8CFCA9BB0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_16FCC0EEB792A2A1F3EC07B8CFCA408E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_D8504DC2E039CD3D506207B8CFCA9BB0" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_16FCC0EEB792A2A1F3EC07B8CFCA408E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BuildingMember" xlink:label="loc_us-gaap_BuildingMember_27FBEF0A3C3721969F3D07B8CFCA2654" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_16FCC0EEB792A2A1F3EC07B8CFCA408E" xlink:to="loc_us-gaap_BuildingMember_27FBEF0A3C3721969F3D07B8CFCA2654" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ComputerEquipmentMember" xlink:label="loc_us-gaap_ComputerEquipmentMember_09647D198EA3699ABB4D07B8CFCA8844" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_16FCC0EEB792A2A1F3EC07B8CFCA408E" xlink:to="loc_us-gaap_ComputerEquipmentMember_09647D198EA3699ABB4D07B8CFCA8844" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FurnitureAndFixturesMember" xlink:label="loc_us-gaap_FurnitureAndFixturesMember_A202C0EAD577E04B45EE07B8CFCB4FBB" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_16FCC0EEB792A2A1F3EC07B8CFCA408E" xlink:to="loc_us-gaap_FurnitureAndFixturesMember_A202C0EAD577E04B45EE07B8CFCB4FBB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LeaseholdImprovementsMember" xlink:label="loc_us-gaap_LeaseholdImprovementsMember_C5BCB6EF3961509C235D07B8CFCB39EC" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_16FCC0EEB792A2A1F3EC07B8CFCA408E" xlink:to="loc_us-gaap_LeaseholdImprovementsMember_C5BCB6EF3961509C235D07B8CFCB39EC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConstructionInProgressMember" xlink:label="loc_us-gaap_ConstructionInProgressMember_41B6BB064D0865D6F52607B8CFCBE1CC" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_16FCC0EEB792A2A1F3EC07B8CFCA408E" xlink:to="loc_us-gaap_ConstructionInProgressMember_41B6BB064D0865D6F52607B8CFCBE1CC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_99CEAFCE671B8E5378DB07B8CFCBAB8E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_2D05426C6784E12932A907B8CFC93D63" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentLineItems_99CEAFCE671B8E5378DB07B8CFCBAB8E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_8372C5803D507FC53A3E07B8CFCBAD3A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_99CEAFCE671B8E5378DB07B8CFCBAB8E" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_8372C5803D507FC53A3E07B8CFCBAD3A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_9859C6D87BE0A9A5C30707B8CFCC0B7E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_99CEAFCE671B8E5378DB07B8CFCBAB8E" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_9859C6D87BE0A9A5C30707B8CFCC0B7E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_50CD256EBDD26CA3F95507B8CFCC1E5D" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_99CEAFCE671B8E5378DB07B8CFCBAB8E" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_50CD256EBDD26CA3F95507B8CFCC1E5D" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/PropertyAndEquipmentNetTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAbstract" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAbstract_E7F2FCC57D326C19838507B8CFCE1FB9" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTextBlock" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTextBlock_04D01B7AE046183C0C7B07B8CFCFBC06" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentAbstract_E7F2FCC57D326C19838507B8CFCE1FB9" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTextBlock_04D01B7AE046183C0C7B07B8CFCFBC06" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/RelatedPartyTransactions" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RelatedPartyTransactionsAbstract" xlink:label="loc_us-gaap_RelatedPartyTransactionsAbstract_8A618DE59E90C717BA5E07B8CEE42565" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:label="loc_us-gaap_RelatedPartyTransactionsDisclosureTextBlock_359ACA5D99CE879771AE07B8CEE56C35" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionsAbstract_8A618DE59E90C717BA5E07B8CEE42565" xlink:to="loc_us-gaap_RelatedPartyTransactionsDisclosureTextBlock_359ACA5D99CE879771AE07B8CEE56C35" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/RelatedPartyTransactionsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RelatedPartyTransactionsAbstract" xlink:label="loc_us-gaap_RelatedPartyTransactionsAbstract_116A134EC8CFBD475B2607B8CEDF5E53" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:label="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_966D0CEF916DDEEBD64A07B8CEDF322A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionsAbstract_116A134EC8CFBD475B2607B8CEDF5E53" xlink:to="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_966D0CEF916DDEEBD64A07B8CEDF322A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_F086257B1E5496DBFE1F07B8CEE01F30" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_966D0CEF916DDEEBD64A07B8CEDF322A" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_F086257B1E5496DBFE1F07B8CEE01F30" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RelatedPartyDomain" xlink:label="loc_us-gaap_RelatedPartyDomain_62C48F40640A754A083207B8CEE0A663" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_F086257B1E5496DBFE1F07B8CEE01F30" xlink:to="loc_us-gaap_RelatedPartyDomain_62C48F40640A754A083207B8CEE0A663" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_MajorityShareholderMember" xlink:label="loc_us-gaap_MajorityShareholderMember_13F46C7A3A4D46B61C0B07B8CEE0E220" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyDomain_62C48F40640A754A083207B8CEE0A663" xlink:to="loc_us-gaap_MajorityShareholderMember_13F46C7A3A4D46B61C0B07B8CEE0E220" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_AffiliatedEntityMember" xlink:label="loc_srt_AffiliatedEntityMember_75F098EC0AD5C5D6CEB607B8CEE052DB" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyDomain_62C48F40640A754A083207B8CEE0A663" xlink:to="loc_srt_AffiliatedEntityMember_75F098EC0AD5C5D6CEB607B8CEE052DB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RelatedPartyTransactionAxis" xlink:label="loc_us-gaap_RelatedPartyTransactionAxis_99EEA5216548597D12EA07B8CEE04F03" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_966D0CEF916DDEEBD64A07B8CEDF322A" xlink:to="loc_us-gaap_RelatedPartyTransactionAxis_99EEA5216548597D12EA07B8CEE04F03" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RelatedPartyTransactionDomain" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_7ED21B97F8010FFF7FE407B8CEE12791" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_99EEA5216548597D12EA07B8CEE04F03" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_7ED21B97F8010FFF7FE407B8CEE12791" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_DropboxCharitableFoundationMember" xlink:label="loc_dbx_DropboxCharitableFoundationMember_637B68A612A7600877BE07B8CEE16802" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_7ED21B97F8010FFF7FE407B8CEE12791" xlink:to="loc_dbx_DropboxCharitableFoundationMember_637B68A612A7600877BE07B8CEE16802" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_InfrastructureEquipmentUnderCapitalLeasesAndCommercialProductsAndServicesMember" xlink:label="loc_dbx_InfrastructureEquipmentUnderCapitalLeasesAndCommercialProductsAndServicesMember_8C37D55481AB0F1167A807B8CEE12455" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_7ED21B97F8010FFF7FE407B8CEE12791" xlink:to="loc_dbx_InfrastructureEquipmentUnderCapitalLeasesAndCommercialProductsAndServicesMember_8C37D55481AB0F1167A807B8CEE12455" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RelatedPartyTransactionLineItems" xlink:label="loc_us-gaap_RelatedPartyTransactionLineItems_66D0040455420CFD073007B8CEE1A015" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_966D0CEF916DDEEBD64A07B8CEDF322A" xlink:to="loc_us-gaap_RelatedPartyTransactionLineItems_66D0040455420CFD073007B8CEE1A015" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_RelatedPartyTransactionNumberOfControllingShareholders" xlink:label="loc_dbx_RelatedPartyTransactionNumberOfControllingShareholders_FEF30BAA02E6D52C5D8607B8CEE267AB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_66D0040455420CFD073007B8CEE1A015" xlink:to="loc_dbx_RelatedPartyTransactionNumberOfControllingShareholders_FEF30BAA02E6D52C5D8607B8CEE267AB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RelatedPartyTransactionAmountsOfTransaction" xlink:label="loc_us-gaap_RelatedPartyTransactionAmountsOfTransaction_0F66ABC0E5F5536BC18C07B8CEE2A98D" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_66D0040455420CFD073007B8CEE1A015" xlink:to="loc_us-gaap_RelatedPartyTransactionAmountsOfTransaction_0F66ABC0E5F5536BC18C07B8CEE2A98D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty" xlink:label="loc_us-gaap_RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty_F43A0BE5A8CF0AF4663F07B8CEE28012" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_66D0040455420CFD073007B8CEE1A015" xlink:to="loc_us-gaap_RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty_F43A0BE5A8CF0AF4663F07B8CEE28012" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/RevolvingCreditFacility" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtDisclosureAbstract" xlink:label="loc_us-gaap_DebtDisclosureAbstract_2801B2CE97B625C01B1E07B8CF97E2BC" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtDisclosureTextBlock" xlink:label="loc_us-gaap_DebtDisclosureTextBlock_B8129AE503374F21C5CB07B8CF97593B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_2801B2CE97B625C01B1E07B8CF97E2BC" xlink:to="loc_us-gaap_DebtDisclosureTextBlock_B8129AE503374F21C5CB07B8CF97593B" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/RevolvingCreditFacilityDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtDisclosureAbstract" xlink:label="loc_us-gaap_DebtDisclosureAbstract_50297D8F390029E7849B07B8CF8E5BA0" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LineOfCreditFacilityTable" xlink:label="loc_us-gaap_LineOfCreditFacilityTable_A19578960E389A28C5A307B8CF8E7706" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_50297D8F390029E7849B07B8CF8E5BA0" xlink:to="loc_us-gaap_LineOfCreditFacilityTable_A19578960E389A28C5A307B8CF8E7706" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="loc_us-gaap_DebtInstrumentAxis_65C19E8A7A6FFA6CA72107B8CF8E3EB2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_A19578960E389A28C5A307B8CF8E7706" xlink:to="loc_us-gaap_DebtInstrumentAxis_65C19E8A7A6FFA6CA72107B8CF8E3EB2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_1730F88E158326C164EC07B8CF8E813E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentAxis_65C19E8A7A6FFA6CA72107B8CF8E3EB2" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_1730F88E158326C164EC07B8CF8E813E" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_CreditAndGuaranteeAgreementMember" xlink:label="loc_dbx_CreditAndGuaranteeAgreementMember_4652E5BEF0540D849E7A07B8CF8F7AAF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_1730F88E158326C164EC07B8CF8E813E" xlink:to="loc_dbx_CreditAndGuaranteeAgreementMember_4652E5BEF0540D849E7A07B8CF8F7AAF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongtermDebtTypeAxis" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_590047E0DD86B03FFA4D07B8CF8F2EC7" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_A19578960E389A28C5A307B8CF8E7706" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_590047E0DD86B03FFA4D07B8CF8F2EC7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_9CBC9CE30F3038790B0007B8CF8FF41B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_590047E0DD86B03FFA4D07B8CF8F2EC7" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_9CBC9CE30F3038790B0007B8CF8FF41B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LineOfCreditMember" xlink:label="loc_us-gaap_LineOfCreditMember_C221AF65CF183C39F93C07B8CF8F77B9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_9CBC9CE30F3038790B0007B8CF8FF41B" xlink:to="loc_us-gaap_LineOfCreditMember_C221AF65CF183C39F93C07B8CF8F77B9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CreditFacilityAxis" xlink:label="loc_us-gaap_CreditFacilityAxis_BB1C2E6B6712C9DB6ED807B8CF90F633" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_A19578960E389A28C5A307B8CF8E7706" xlink:to="loc_us-gaap_CreditFacilityAxis_BB1C2E6B6712C9DB6ED807B8CF90F633" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CreditFacilityDomain" xlink:label="loc_us-gaap_CreditFacilityDomain_454CD409BCDDCDF315A507B8CF90A42C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CreditFacilityAxis_BB1C2E6B6712C9DB6ED807B8CF90F633" xlink:to="loc_us-gaap_CreditFacilityDomain_454CD409BCDDCDF315A507B8CF90A42C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RevolvingCreditFacilityMember" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_0BD92B042DC794D689DE07B8CF90CFF7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CreditFacilityDomain_454CD409BCDDCDF315A507B8CF90A42C" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_0BD92B042DC794D689DE07B8CF90CFF7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LetterOfCreditMember" xlink:label="loc_us-gaap_LetterOfCreditMember_4F626AE927E988A363A907B8CF905847" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CreditFacilityDomain_454CD409BCDDCDF315A507B8CF90A42C" xlink:to="loc_us-gaap_LetterOfCreditMember_4F626AE927E988A363A907B8CF905847" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_VariableRateAxis" xlink:label="loc_us-gaap_VariableRateAxis_1F2CE18FFB2E0674385F07B8CF90B468" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_A19578960E389A28C5A307B8CF8E7706" xlink:to="loc_us-gaap_VariableRateAxis_1F2CE18FFB2E0674385F07B8CF90B468" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_VariableRateDomain" xlink:label="loc_us-gaap_VariableRateDomain_D43562C2A6D6FF86722A07B8CF91C5C7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_VariableRateAxis_1F2CE18FFB2E0674385F07B8CF90B468" xlink:to="loc_us-gaap_VariableRateDomain_D43562C2A6D6FF86722A07B8CF91C5C7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LondonInterbankOfferedRateLIBORMember" xlink:label="loc_us-gaap_LondonInterbankOfferedRateLIBORMember_1C88B6BBF0D863A89B0507B8CF91BDB9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_VariableRateDomain_D43562C2A6D6FF86722A07B8CF91C5C7" xlink:to="loc_us-gaap_LondonInterbankOfferedRateLIBORMember_1C88B6BBF0D863A89B0507B8CF91BDB9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BaseRateMember" xlink:label="loc_us-gaap_BaseRateMember_C84305D410C2207D0BDF07B8CF91713B" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_VariableRateDomain_D43562C2A6D6FF86722A07B8CF91C5C7" xlink:to="loc_us-gaap_BaseRateMember_C84305D410C2207D0BDF07B8CF91713B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LineOfCreditFacilityLineItems" xlink:label="loc_us-gaap_LineOfCreditFacilityLineItems_6686A29F9B003E2B477107B8CF91694B" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_A19578960E389A28C5A307B8CF8E7706" xlink:to="loc_us-gaap_LineOfCreditFacilityLineItems_6686A29F9B003E2B477107B8CF91694B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_C92DB1FDE015A2A552F007B8CF9105EA" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_6686A29F9B003E2B477107B8CF91694B" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_C92DB1FDE015A2A552F007B8CF9105EA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtIssuanceCostsLineOfCreditArrangementsGross" xlink:label="loc_us-gaap_DebtIssuanceCostsLineOfCreditArrangementsGross_7880B96CAFFE06C3721207B8CF928A09" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_6686A29F9B003E2B477107B8CF91694B" xlink:to="loc_us-gaap_DebtIssuanceCostsLineOfCreditArrangementsGross_7880B96CAFFE06C3721207B8CF928A09" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentTerm" xlink:label="loc_us-gaap_DebtInstrumentTerm_60AF589739162D1B582107B8CF922949" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_6686A29F9B003E2B477107B8CF91694B" xlink:to="loc_us-gaap_DebtInstrumentTerm_60AF589739162D1B582107B8CF922949" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_LineOfCreditFacilityAccordionFeatureIncreaseLimit" xlink:label="loc_dbx_LineOfCreditFacilityAccordionFeatureIncreaseLimit_723A33E789273C5C3EBB07B8CF92A5CA" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_6686A29F9B003E2B477107B8CF91694B" xlink:to="loc_dbx_LineOfCreditFacilityAccordionFeatureIncreaseLimit_723A33E789273C5C3EBB07B8CF92A5CA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage" xlink:label="loc_us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_A9E1AAFF2185FC83501307B8CF925D19" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_6686A29F9B003E2B477107B8CF91694B" xlink:to="loc_us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_A9E1AAFF2185FC83501307B8CF925D19" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LineOfCreditFacilityCommitmentFeePercentage" xlink:label="loc_us-gaap_LineOfCreditFacilityCommitmentFeePercentage_3B8947B66CD4BD73CFA807B8CF92390E" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_6686A29F9B003E2B477107B8CF91694B" xlink:to="loc_us-gaap_LineOfCreditFacilityCommitmentFeePercentage_3B8947B66CD4BD73CFA807B8CF92390E" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_LineOfCreditFacilityFrontingFeePercentage" xlink:label="loc_dbx_LineOfCreditFacilityFrontingFeePercentage_B59DC28211BC1117342F07B8CF93A644" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_6686A29F9B003E2B477107B8CF91694B" xlink:to="loc_dbx_LineOfCreditFacilityFrontingFeePercentage_B59DC28211BC1117342F07B8CF93A644" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_B893051FFFA8E66376C907B8CF93A252" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_6686A29F9B003E2B477107B8CF91694B" xlink:to="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_B893051FFFA8E66376C907B8CF93A252" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_LineOfCreditFacilityCovenantTermsLiquidityRatioRequiredMinimum" xlink:label="loc_dbx_LineOfCreditFacilityCovenantTermsLiquidityRatioRequiredMinimum_8045EBCFBE64F040947707B8CF938E27" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_6686A29F9B003E2B477107B8CF91694B" xlink:to="loc_dbx_LineOfCreditFacilityCovenantTermsLiquidityRatioRequiredMinimum_8045EBCFBE64F040947707B8CF938E27" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LettersOfCreditOutstandingAmount" xlink:label="loc_us-gaap_LettersOfCreditOutstandingAmount_80963C381BDBA1B977BB07B8CF93C420" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_6686A29F9B003E2B477107B8CF91694B" xlink:to="loc_us-gaap_LettersOfCreditOutstandingAmount_80963C381BDBA1B977BB07B8CF93C420" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity" xlink:label="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_951AA4F4EAA98D3300C707B8CF93FF49" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_6686A29F9B003E2B477107B8CF91694B" xlink:to="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_951AA4F4EAA98D3300C707B8CF93FF49" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/StockholdersEquity" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockholdersEquityNoteAbstract" xlink:label="loc_us-gaap_StockholdersEquityNoteAbstract_09A63283C28B05CDE53A07B8CF6C385F" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareholdersEquityAndShareBasedPaymentsTextBlock" xlink:label="loc_us-gaap_ShareholdersEquityAndShareBasedPaymentsTextBlock_76C4EE03E1549289C47407B8CF6C42AB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityNoteAbstract_09A63283C28B05CDE53A07B8CF6C385F" xlink:to="loc_us-gaap_ShareholdersEquityAndShareBasedPaymentsTextBlock_76C4EE03E1549289C47407B8CF6C42AB" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/StockholdersEquityAwardModificationsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockholdersEquityNoteAbstract" xlink:label="loc_us-gaap_StockholdersEquityNoteAbstract_6490D0B24212F158982207B8CF273971" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_A7D4DB7E028349A77F2E07B8CF2896D3" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityNoteAbstract_6490D0B24212F158982207B8CF273971" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_A7D4DB7E028349A77F2E07B8CF2896D3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_28073AD3490459B32D6407B8CF28C673" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_A7D4DB7E028349A77F2E07B8CF2896D3" xlink:to="loc_us-gaap_AwardTypeAxis_28073AD3490459B32D6407B8CF28C673" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_4087AEA6E0D829D48B0507B8CF2887E2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_28073AD3490459B32D6407B8CF28C673" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_4087AEA6E0D829D48B0507B8CF2887E2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestrictedStockUnitsRSUMember" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_360039BF12E07BA63EF007B8CF28797E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_4087AEA6E0D829D48B0507B8CF2887E2" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_360039BF12E07BA63EF007B8CF28797E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EmployeeStockOptionMember" xlink:label="loc_us-gaap_EmployeeStockOptionMember_A953C1E8F2F9D4E8255007B8CF29B996" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_4087AEA6E0D829D48B0507B8CF2887E2" xlink:to="loc_us-gaap_EmployeeStockOptionMember_A953C1E8F2F9D4E8255007B8CF29B996" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PlanNameAxis" xlink:label="loc_us-gaap_PlanNameAxis_3AABE666199153754BCF07B8CF294E81" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_A7D4DB7E028349A77F2E07B8CF2896D3" xlink:to="loc_us-gaap_PlanNameAxis_3AABE666199153754BCF07B8CF294E81" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PlanNameDomain" xlink:label="loc_us-gaap_PlanNameDomain_2F6A08659F509BA542E507B8CF29DE4B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanNameAxis_3AABE666199153754BCF07B8CF294E81" xlink:to="loc_us-gaap_PlanNameDomain_2F6A08659F509BA542E507B8CF29DE4B" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_A2016PlanModificationMember" xlink:label="loc_dbx_A2016PlanModificationMember_4328C4E3EF5036B7AD6E07B8CF2994E2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanNameDomain_2F6A08659F509BA542E507B8CF29DE4B" xlink:to="loc_dbx_A2016PlanModificationMember_4328C4E3EF5036B7AD6E07B8CF2994E2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_018E1895C1B2F3138C0907B8CF2AA7AB" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_A7D4DB7E028349A77F2E07B8CF2896D3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_018E1895C1B2F3138C0907B8CF2AA7AB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost_7516E7FD7DC68A83239707B8CF2A104C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_018E1895C1B2F3138C0907B8CF2AA7AB" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost_7516E7FD7DC68A83239707B8CF2A104C" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_SharebasedCompensationArrangementBySharebasedPaymentAwardPlanModificationExchanged" xlink:label="loc_dbx_SharebasedCompensationArrangementBySharebasedPaymentAwardPlanModificationExchanged_0A985DA1C157D8ED860107B8CF2AF7FF" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_018E1895C1B2F3138C0907B8CF2AA7AB" xlink:to="loc_dbx_SharebasedCompensationArrangementBySharebasedPaymentAwardPlanModificationExchanged_0A985DA1C157D8ED860107B8CF2AF7FF" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_SharebasedCompensationArrangementBySharebasedPaymentAwardPlanModificationUnitsIssued" xlink:label="loc_dbx_SharebasedCompensationArrangementBySharebasedPaymentAwardPlanModificationUnitsIssued_5A4488591D6B264D6D1807B8CF2AC765" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_018E1895C1B2F3138C0907B8CF2AA7AB" xlink:to="loc_dbx_SharebasedCompensationArrangementBySharebasedPaymentAwardPlanModificationUnitsIssued_5A4488591D6B264D6D1807B8CF2AC765" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AllocatedShareBasedCompensationExpense" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_F4EF13B511320F934A5407B8CF2B0335" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_018E1895C1B2F3138C0907B8CF2AA7AB" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_F4EF13B511320F934A5407B8CF2B0335" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_SharebasedCompensationArrangementbySharebasedPaymentAwardPlanModificationUnamortizedCompensationCost" xlink:label="loc_dbx_SharebasedCompensationArrangementbySharebasedPaymentAwardPlanModificationUnamortizedCompensationCost_DA59B70004145AE65F0007B8CF2B6BBD" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_018E1895C1B2F3138C0907B8CF2AA7AB" xlink:to="loc_dbx_SharebasedCompensationArrangementbySharebasedPaymentAwardPlanModificationUnamortizedCompensationCost_DA59B70004145AE65F0007B8CF2B6BBD" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/StockholdersEquityCoFounderGrantsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockholdersEquityNoteAbstract" xlink:label="loc_us-gaap_StockholdersEquityNoteAbstract_3857E0F02FA2ED2A0B5507B8CF30BF85" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_944B19BDE5CB72FF2EDF07B8CF30C8CF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityNoteAbstract_3857E0F02FA2ED2A0B5507B8CF30BF85" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_944B19BDE5CB72FF2EDF07B8CF30C8CF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PlanNameAxis" xlink:label="loc_us-gaap_PlanNameAxis_F299DAA13AD38003322207B8CF301644" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_944B19BDE5CB72FF2EDF07B8CF30C8CF" xlink:to="loc_us-gaap_PlanNameAxis_F299DAA13AD38003322207B8CF301644" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PlanNameDomain" xlink:label="loc_us-gaap_PlanNameDomain_3AEE7672F0F2F95EAE6507B8CF30E33C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanNameAxis_F299DAA13AD38003322207B8CF301644" xlink:to="loc_us-gaap_PlanNameDomain_3AEE7672F0F2F95EAE6507B8CF30E33C" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_CoFounderGrantsMember" xlink:label="loc_dbx_CoFounderGrantsMember_5C3E3B6789B20115B05E07B8CF31E8FB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanNameDomain_3AEE7672F0F2F95EAE6507B8CF30E33C" xlink:to="loc_dbx_CoFounderGrantsMember_5C3E3B6789B20115B05E07B8CF31E8FB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TitleOfIndividualAxis" xlink:label="loc_us-gaap_TitleOfIndividualAxis_A367BEC2A01005983CF107B8CF31A740" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_944B19BDE5CB72FF2EDF07B8CF30C8CF" xlink:to="loc_us-gaap_TitleOfIndividualAxis_A367BEC2A01005983CF107B8CF31A740" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TitleOfIndividualWithRelationshipToEntityDomain" xlink:label="loc_us-gaap_TitleOfIndividualWithRelationshipToEntityDomain_A6AAEA0591202BFECC3D07B8CF317DEC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TitleOfIndividualAxis_A367BEC2A01005983CF107B8CF31A740" xlink:to="loc_us-gaap_TitleOfIndividualWithRelationshipToEntityDomain_A6AAEA0591202BFECC3D07B8CF317DEC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ChiefExecutiveOfficerMember" xlink:label="loc_us-gaap_ChiefExecutiveOfficerMember_16ACD0B070F3A89FF42B07B8CF31853C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TitleOfIndividualWithRelationshipToEntityDomain_A6AAEA0591202BFECC3D07B8CF317DEC" xlink:to="loc_us-gaap_ChiefExecutiveOfficerMember_16ACD0B070F3A89FF42B07B8CF31853C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DirectorMember" xlink:label="loc_us-gaap_DirectorMember_E28DE4EB78646F2A0DD907B8CF32403F" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TitleOfIndividualWithRelationshipToEntityDomain_A6AAEA0591202BFECC3D07B8CF317DEC" xlink:to="loc_us-gaap_DirectorMember_E28DE4EB78646F2A0DD907B8CF32403F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_DC9330BB9A14AC23B05507B8CF32A48D" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_944B19BDE5CB72FF2EDF07B8CF30C8CF" xlink:to="loc_us-gaap_AwardTypeAxis_DC9330BB9A14AC23B05507B8CF32A48D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_50C7B3DDB7948F74F60C07B8CF323676" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_DC9330BB9A14AC23B05507B8CF32A48D" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_50C7B3DDB7948F74F60C07B8CF323676" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestrictedStockMember" xlink:label="loc_us-gaap_RestrictedStockMember_1A0E9A9A4522942C3F8707B8CF322956" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_50C7B3DDB7948F74F60C07B8CF323676" xlink:to="loc_us-gaap_RestrictedStockMember_1A0E9A9A4522942C3F8707B8CF322956" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_VestingAxis" xlink:label="loc_us-gaap_VestingAxis_27F0530FD8E2ADB6951307B8CF328B3B" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_944B19BDE5CB72FF2EDF07B8CF30C8CF" xlink:to="loc_us-gaap_VestingAxis_27F0530FD8E2ADB6951307B8CF328B3B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_VestingDomain" xlink:label="loc_us-gaap_VestingDomain_009279AA3EF296737D7C07B8CF333EF4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_VestingAxis_27F0530FD8E2ADB6951307B8CF328B3B" xlink:to="loc_us-gaap_VestingDomain_009279AA3EF296737D7C07B8CF333EF4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationAwardTrancheOneMember" xlink:label="loc_us-gaap_ShareBasedCompensationAwardTrancheOneMember_5D7759E0AE719C0A513307B8CF334CB6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_VestingDomain_009279AA3EF296737D7C07B8CF333EF4" xlink:to="loc_us-gaap_ShareBasedCompensationAwardTrancheOneMember_5D7759E0AE719C0A513307B8CF334CB6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_RangeAxis" xlink:label="loc_srt_RangeAxis_B0292A8558ED820ACB1E07B8CF331C44" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_944B19BDE5CB72FF2EDF07B8CF30C8CF" xlink:to="loc_srt_RangeAxis_B0292A8558ED820ACB1E07B8CF331C44" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_RangeMember" xlink:label="loc_srt_RangeMember_6FEFD327F8E19DE288A207B8CF33224A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeAxis_B0292A8558ED820ACB1E07B8CF331C44" xlink:to="loc_srt_RangeMember_6FEFD327F8E19DE288A207B8CF33224A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_MinimumMember" xlink:label="loc_srt_MinimumMember_64585C4DD41F9B2EF86E07B8CF34CD4B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_6FEFD327F8E19DE288A207B8CF33224A" xlink:to="loc_srt_MinimumMember_64585C4DD41F9B2EF86E07B8CF34CD4B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_MaximumMember" xlink:label="loc_srt_MaximumMember_24D4661D6278E7F163E507B8CF347317" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_6FEFD327F8E19DE288A207B8CF33224A" xlink:to="loc_srt_MaximumMember_24D4661D6278E7F163E507B8CF347317" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_6BB7938B7E86A4DB26E407B8CF344A10" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_944B19BDE5CB72FF2EDF07B8CF30C8CF" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_6BB7938B7E86A4DB26E407B8CF344A10" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_A30A5B7B204C3D3AD4CE07B8CF343318" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_6BB7938B7E86A4DB26E407B8CF344A10" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_A30A5B7B204C3D3AD4CE07B8CF343318" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_CFB2CD7545E846FD761707B8CF3415CF" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_6BB7938B7E86A4DB26E407B8CF344A10" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_CFB2CD7545E846FD761707B8CF3415CF" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfTranches" xlink:label="loc_dbx_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfTranches_E4D870036808AE69304007B8CF359A1C" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_6BB7938B7E86A4DB26E407B8CF344A10" xlink:to="loc_dbx_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfTranches_E4D870036808AE69304007B8CF359A1C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_D5D948413F89B70E098A07B8CF356363" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_6BB7938B7E86A4DB26E407B8CF344A10" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_D5D948413F89B70E098A07B8CF356363" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage_BF4399917399ADBE1D5507B8CF355425" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_6BB7938B7E86A4DB26E407B8CF344A10" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage_BF4399917399ADBE1D5507B8CF355425" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue_43A44398A1E294147AAE07B8CF352749" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_6BB7938B7E86A4DB26E407B8CF344A10" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue_43A44398A1E294147AAE07B8CF352749" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_DDAEF92EAC6E36C42E9207B8CF35CA8A" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_6BB7938B7E86A4DB26E407B8CF344A10" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_DDAEF92EAC6E36C42E9207B8CF35CA8A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_0838B28A8069AC053B4607B8CF359B53" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_6BB7938B7E86A4DB26E407B8CF344A10" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_0838B28A8069AC053B4607B8CF359B53" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AllocatedShareBasedCompensationExpense" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_928521FD29D93D7F77A907B8CF3668B7" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_6BB7938B7E86A4DB26E407B8CF344A10" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_928521FD29D93D7F77A907B8CF3668B7" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/StockholdersEquityCommonStockDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockholdersEquityNoteAbstract" xlink:label="loc_us-gaap_StockholdersEquityNoteAbstract_61A9545A7F515B454EE807B8CF6198ED" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfStockByClassTable" xlink:label="loc_us-gaap_ScheduleOfStockByClassTable_33D87063B8E4970D77C507B8CF6176F3" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityNoteAbstract_61A9545A7F515B454EE807B8CF6198ED" xlink:to="loc_us-gaap_ScheduleOfStockByClassTable_33D87063B8E4970D77C507B8CF6176F3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_695CDBF1505BEB583EFD07B8CF619D81" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_33D87063B8E4970D77C507B8CF6176F3" xlink:to="loc_us-gaap_StatementClassOfStockAxis_695CDBF1505BEB583EFD07B8CF619D81" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_B7C86D5A0907DCEAF68807B8CF612CFB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementClassOfStockAxis_695CDBF1505BEB583EFD07B8CF619D81" xlink:to="loc_us-gaap_ClassOfStockDomain_B7C86D5A0907DCEAF68807B8CF612CFB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonClassAMember" xlink:label="loc_us-gaap_CommonClassAMember_0FAED1846CF55ACCD85F07B8CF621CC6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_B7C86D5A0907DCEAF68807B8CF612CFB" xlink:to="loc_us-gaap_CommonClassAMember_0FAED1846CF55ACCD85F07B8CF621CC6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonClassBMember" xlink:label="loc_us-gaap_CommonClassBMember_9A889473100D3FD917B907B8CF6277A0" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_B7C86D5A0907DCEAF68807B8CF612CFB" xlink:to="loc_us-gaap_CommonClassBMember_9A889473100D3FD917B907B8CF6277A0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonClassCMember" xlink:label="loc_us-gaap_CommonClassCMember_DF4746B149437E9559F607B8CF62A533" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_B7C86D5A0907DCEAF68807B8CF612CFB" xlink:to="loc_us-gaap_CommonClassCMember_DF4746B149437E9559F607B8CF62A533" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PlanNameAxis" xlink:label="loc_us-gaap_PlanNameAxis_6C427591FB77C753C55307B8CF626A04" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_33D87063B8E4970D77C507B8CF6176F3" xlink:to="loc_us-gaap_PlanNameAxis_6C427591FB77C753C55307B8CF626A04" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PlanNameDomain" xlink:label="loc_us-gaap_PlanNameDomain_3220390B11F3C1C2002607B8CF629DFB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanNameAxis_6C427591FB77C753C55307B8CF626A04" xlink:to="loc_us-gaap_PlanNameDomain_3220390B11F3C1C2002607B8CF629DFB" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_CoFounderGrantsMember" xlink:label="loc_dbx_CoFounderGrantsMember_C26197150E8EC54251C707B8CF63C0AE" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanNameDomain_3220390B11F3C1C2002607B8CF629DFB" xlink:to="loc_dbx_CoFounderGrantsMember_C26197150E8EC54251C707B8CF63C0AE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_D7D18AA2454B851AF7E907B8CF630F68" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_33D87063B8E4970D77C507B8CF6176F3" xlink:to="loc_us-gaap_AwardTypeAxis_D7D18AA2454B851AF7E907B8CF630F68" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B603B1FED99C9D9B4F0307B8CF632382" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_D7D18AA2454B851AF7E907B8CF630F68" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B603B1FED99C9D9B4F0307B8CF632382" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestrictedStockMember" xlink:label="loc_us-gaap_RestrictedStockMember_8F7D79B0006FC441048607B8CF632D6F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B603B1FED99C9D9B4F0307B8CF632382" xlink:to="loc_us-gaap_RestrictedStockMember_8F7D79B0006FC441048607B8CF632D6F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ClassOfStockLineItems" xlink:label="loc_us-gaap_ClassOfStockLineItems_F7A77D9CEF62BD76E9FF07B8CF64DD61" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_33D87063B8E4970D77C507B8CF6176F3" xlink:to="loc_us-gaap_ClassOfStockLineItems_F7A77D9CEF62BD76E9FF07B8CF64DD61" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_CommonStockVotesPerShare" xlink:label="loc_dbx_CommonStockVotesPerShare_2BE0A908F7C4F5ACB32607B8CF64A8F6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_F7A77D9CEF62BD76E9FF07B8CF64DD61" xlink:to="loc_dbx_CommonStockVotesPerShare_2BE0A908F7C4F5ACB32607B8CF64A8F6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConversionOfStockSharesConverted1" xlink:label="loc_us-gaap_ConversionOfStockSharesConverted1_8C823C3AEB7378557B9F07B8CF6400BD" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_F7A77D9CEF62BD76E9FF07B8CF64DD61" xlink:to="loc_us-gaap_ConversionOfStockSharesConverted1_8C823C3AEB7378557B9F07B8CF6400BD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonStockSharesAuthorized" xlink:label="loc_us-gaap_CommonStockSharesAuthorized_1B0B338FE4F1CD8BE9DB07B8CF649EAF" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_F7A77D9CEF62BD76E9FF07B8CF64DD61" xlink:to="loc_us-gaap_CommonStockSharesAuthorized_1B0B338FE4F1CD8BE9DB07B8CF649EAF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_E71D538651F22717F0B807B8CF64F972" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_F7A77D9CEF62BD76E9FF07B8CF64DD61" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_E71D538651F22717F0B807B8CF64F972" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonStockSharesIssued" xlink:label="loc_us-gaap_CommonStockSharesIssued_0F2EBEFA5AB7AA458CC007B8CF65248F" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_F7A77D9CEF62BD76E9FF07B8CF64DD61" xlink:to="loc_us-gaap_CommonStockSharesIssued_0F2EBEFA5AB7AA458CC007B8CF65248F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_6C716479D628FAF7A4F707B8CF6547B4" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_F7A77D9CEF62BD76E9FF07B8CF64DD61" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_6C716479D628FAF7A4F707B8CF6547B4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_0F9F2102975B9FB9243707B8CF659559" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_F7A77D9CEF62BD76E9FF07B8CF64DD61" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_0F9F2102975B9FB9243707B8CF659559" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/StockholdersEquityConvertiblePreferredStockAndPreferredStockDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockholdersEquityNoteAbstract" xlink:label="loc_us-gaap_StockholdersEquityNoteAbstract_A57A245BF7EC750B575C07B8CF579ECB" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfStockByClassTable" xlink:label="loc_us-gaap_ScheduleOfStockByClassTable_F1CAE291AB711E4CE64107B8CF576870" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityNoteAbstract_A57A245BF7EC750B575C07B8CF579ECB" xlink:to="loc_us-gaap_ScheduleOfStockByClassTable_F1CAE291AB711E4CE64107B8CF576870" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConversionOfStockByUniqueDescriptionAxis" xlink:label="loc_us-gaap_ConversionOfStockByUniqueDescriptionAxis_F0B99DF3C30AD4BF0FDC07B8CF57B57F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_F1CAE291AB711E4CE64107B8CF576870" xlink:to="loc_us-gaap_ConversionOfStockByUniqueDescriptionAxis_F0B99DF3C30AD4BF0FDC07B8CF57B57F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConversionOfStockNameDomain" xlink:label="loc_us-gaap_ConversionOfStockNameDomain_1BBFC75EA9EBB38C77AA07B8CF577A21" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConversionOfStockByUniqueDescriptionAxis_F0B99DF3C30AD4BF0FDC07B8CF57B57F" xlink:to="loc_us-gaap_ConversionOfStockNameDomain_1BBFC75EA9EBB38C77AA07B8CF577A21" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_ConversionOfConvertiblePreferredStockToClassBCommonStockMember" xlink:label="loc_dbx_ConversionOfConvertiblePreferredStockToClassBCommonStockMember_17D66568973F05A37E2107B8CF5882C0" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConversionOfStockNameDomain_1BBFC75EA9EBB38C77AA07B8CF577A21" xlink:to="loc_dbx_ConversionOfConvertiblePreferredStockToClassBCommonStockMember_17D66568973F05A37E2107B8CF5882C0" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_ConversionOfConvertiblePreferredStockToClassACommonStockMember" xlink:label="loc_dbx_ConversionOfConvertiblePreferredStockToClassACommonStockMember_2967A4E764D15FD1605D07B8CF58DC99" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConversionOfStockNameDomain_1BBFC75EA9EBB38C77AA07B8CF577A21" xlink:to="loc_dbx_ConversionOfConvertiblePreferredStockToClassACommonStockMember_2967A4E764D15FD1605D07B8CF58DC99" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_41F5A4579E9D2051F47907B8CF58E669" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_F1CAE291AB711E4CE64107B8CF576870" xlink:to="loc_us-gaap_StatementClassOfStockAxis_41F5A4579E9D2051F47907B8CF58E669" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_57479C4DB3E1434A4DBE07B8CF5811ED" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementClassOfStockAxis_41F5A4579E9D2051F47907B8CF58E669" xlink:to="loc_us-gaap_ClassOfStockDomain_57479C4DB3E1434A4DBE07B8CF5811ED" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonClassAMember" xlink:label="loc_us-gaap_CommonClassAMember_C27A0F46403804D32CCE07B8CF5962E4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_57479C4DB3E1434A4DBE07B8CF5811ED" xlink:to="loc_us-gaap_CommonClassAMember_C27A0F46403804D32CCE07B8CF5962E4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonClassBMember" xlink:label="loc_us-gaap_CommonClassBMember_4F14169AAA8D2C30198307B8CF59EDE9" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_57479C4DB3E1434A4DBE07B8CF5811ED" xlink:to="loc_us-gaap_CommonClassBMember_4F14169AAA8D2C30198307B8CF59EDE9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConvertiblePreferredStockMember" xlink:label="loc_us-gaap_ConvertiblePreferredStockMember_84BA0778CD2ED247468F07B8CF59E80C" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_57479C4DB3E1434A4DBE07B8CF5811ED" xlink:to="loc_us-gaap_ConvertiblePreferredStockMember_84BA0778CD2ED247468F07B8CF59E80C" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_SeriesAConvertiblePreferredStockMember" xlink:label="loc_dbx_SeriesAConvertiblePreferredStockMember_25E36B8BC066F588933C07B8CF596180" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_57479C4DB3E1434A4DBE07B8CF5811ED" xlink:to="loc_dbx_SeriesAConvertiblePreferredStockMember_25E36B8BC066F588933C07B8CF596180" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_SeriesA1ConvertiblePreferredStockMember" xlink:label="loc_dbx_SeriesA1ConvertiblePreferredStockMember_E3D89B379E7F313178C807B8CF5922C3" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_57479C4DB3E1434A4DBE07B8CF5811ED" xlink:to="loc_dbx_SeriesA1ConvertiblePreferredStockMember_E3D89B379E7F313178C807B8CF5922C3" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_SeriesBConvertiblePreferredStockMember" xlink:label="loc_dbx_SeriesBConvertiblePreferredStockMember_7682EB64C68AD381FD5207B8CF5AF38E" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_57479C4DB3E1434A4DBE07B8CF5811ED" xlink:to="loc_dbx_SeriesBConvertiblePreferredStockMember_7682EB64C68AD381FD5207B8CF5AF38E" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_SeriesCConvertiblePreferredStockMember" xlink:label="loc_dbx_SeriesCConvertiblePreferredStockMember_D5C073B86F223AA8ABC207B8CF5A82DF" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_57479C4DB3E1434A4DBE07B8CF5811ED" xlink:to="loc_dbx_SeriesCConvertiblePreferredStockMember_D5C073B86F223AA8ABC207B8CF5A82DF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ClassOfStockLineItems" xlink:label="loc_us-gaap_ClassOfStockLineItems_9C219835523272B5BF5707B8CF5A7645" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_F1CAE291AB711E4CE64107B8CF576870" xlink:to="loc_us-gaap_ClassOfStockLineItems_9C219835523272B5BF5707B8CF5A7645" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConversionOfStockSharesConverted1" xlink:label="loc_us-gaap_ConversionOfStockSharesConverted1_8FE7DCA34680ECAE5FCC07B8CF5A32A8" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_9C219835523272B5BF5707B8CF5A7645" xlink:to="loc_us-gaap_ConversionOfStockSharesConverted1_8FE7DCA34680ECAE5FCC07B8CF5A32A8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConversionOfStockSharesIssued1" xlink:label="loc_us-gaap_ConversionOfStockSharesIssued1_864B29C3DA24941DB37E07B8CF5AC8B2" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_9C219835523272B5BF5707B8CF5A7645" xlink:to="loc_us-gaap_ConversionOfStockSharesIssued1_864B29C3DA24941DB37E07B8CF5AC8B2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PreferredStockSharesAuthorized" xlink:label="loc_us-gaap_PreferredStockSharesAuthorized_D991C2EF775A8A31DEAD07B8CF5A92E4" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_9C219835523272B5BF5707B8CF5A7645" xlink:to="loc_us-gaap_PreferredStockSharesAuthorized_D991C2EF775A8A31DEAD07B8CF5A92E4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PreferredStockSharesOutstanding" xlink:label="loc_us-gaap_PreferredStockSharesOutstanding_BB5101EB7FA7798F709607B8CF5A2FF6" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_9C219835523272B5BF5707B8CF5A7645" xlink:to="loc_us-gaap_PreferredStockSharesOutstanding_BB5101EB7FA7798F709607B8CF5A2FF6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SharesIssuedPricePerShare" xlink:label="loc_us-gaap_SharesIssuedPricePerShare_51DB3884156D5DDDEBCB07B8CF5B91B3" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_9C219835523272B5BF5707B8CF5A7645" xlink:to="loc_us-gaap_SharesIssuedPricePerShare_51DB3884156D5DDDEBCB07B8CF5B91B3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PreferredStockLiquidationPreferenceValue" xlink:label="loc_us-gaap_PreferredStockLiquidationPreferenceValue_A5323ED8527FE76FAAC707B8CF5B938D" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_9C219835523272B5BF5707B8CF5A7645" xlink:to="loc_us-gaap_PreferredStockLiquidationPreferenceValue_A5323ED8527FE76FAAC707B8CF5B938D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PreferredStockDividendRatePerDollarAmount" xlink:label="loc_us-gaap_PreferredStockDividendRatePerDollarAmount_41D7F8952EEE60EF4FE607B8CF5BCEED" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_9C219835523272B5BF5707B8CF5A7645" xlink:to="loc_us-gaap_PreferredStockDividendRatePerDollarAmount_41D7F8952EEE60EF4FE607B8CF5BCEED" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/StockholdersEquityEquityIncentivePlansDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockholdersEquityNoteAbstract" xlink:label="loc_us-gaap_StockholdersEquityNoteAbstract_0000EDC059769FB3018807B8CF4EF628" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_AE462ADB11A0D958473007B8CF4E47B9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityNoteAbstract_0000EDC059769FB3018807B8CF4EF628" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_AE462ADB11A0D958473007B8CF4E47B9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PlanNameAxis" xlink:label="loc_us-gaap_PlanNameAxis_3B7A3B4E8A4E7580785C07B8CF4F3642" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_AE462ADB11A0D958473007B8CF4E47B9" xlink:to="loc_us-gaap_PlanNameAxis_3B7A3B4E8A4E7580785C07B8CF4F3642" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PlanNameDomain" xlink:label="loc_us-gaap_PlanNameDomain_3FCAB04DA24A76430ADB07B8CF4F0295" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanNameAxis_3B7A3B4E8A4E7580785C07B8CF4F3642" xlink:to="loc_us-gaap_PlanNameDomain_3FCAB04DA24A76430ADB07B8CF4F0295" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_A2018PlanMember" xlink:label="loc_dbx_A2018PlanMember_1DB26FB93FF3B6784E2707B8CF4FB59F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanNameDomain_3FCAB04DA24A76430ADB07B8CF4F0295" xlink:to="loc_dbx_A2018PlanMember_1DB26FB93FF3B6784E2707B8CF4FB59F" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_A2008EquityIncentivePlan2017EquityIncentivePlanand2018PlanMember" xlink:label="loc_dbx_A2008EquityIncentivePlan2017EquityIncentivePlanand2018PlanMember_B0DCFED675B5F8BB8F0407B8CF4F0295" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanNameDomain_3FCAB04DA24A76430ADB07B8CF4F0295" xlink:to="loc_dbx_A2008EquityIncentivePlan2017EquityIncentivePlanand2018PlanMember_B0DCFED675B5F8BB8F0407B8CF4F0295" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_51BDE4185C3500DD40A007B8CF5009DB" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_AE462ADB11A0D958473007B8CF4E47B9" xlink:to="loc_us-gaap_AwardTypeAxis_51BDE4185C3500DD40A007B8CF5009DB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_301BC83BB5845C8BB57907B8CF508AAB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_51BDE4185C3500DD40A007B8CF5009DB" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_301BC83BB5845C8BB57907B8CF508AAB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EmployeeStockOptionMember" xlink:label="loc_us-gaap_EmployeeStockOptionMember_9AA105415EE911A04BD407B8CF50AB28" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_301BC83BB5845C8BB57907B8CF508AAB" xlink:to="loc_us-gaap_EmployeeStockOptionMember_9AA105415EE911A04BD407B8CF50AB28" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_E42589C5B00AFFDF63B207B8CF50E5E0" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_AE462ADB11A0D958473007B8CF4E47B9" xlink:to="loc_us-gaap_StatementClassOfStockAxis_E42589C5B00AFFDF63B207B8CF50E5E0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_54722A2453524F1ABBCB07B8CF50D556" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementClassOfStockAxis_E42589C5B00AFFDF63B207B8CF50E5E0" xlink:to="loc_us-gaap_ClassOfStockDomain_54722A2453524F1ABBCB07B8CF50D556" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonClassAMember" xlink:label="loc_us-gaap_CommonClassAMember_33015E8F6B9A2AB4229807B8CF5163AD" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_54722A2453524F1ABBCB07B8CF50D556" xlink:to="loc_us-gaap_CommonClassAMember_33015E8F6B9A2AB4229807B8CF5163AD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_90F85AC4EB4ED5AB6C2707B8CF51D3F7" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_AE462ADB11A0D958473007B8CF4E47B9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_90F85AC4EB4ED5AB6C2707B8CF51D3F7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_AA4064109AEA2506174307B8CF5194D2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_90F85AC4EB4ED5AB6C2707B8CF51D3F7" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_AA4064109AEA2506174307B8CF5194D2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_2A0CB3E00325B7A8678707B8CF5142AB" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_90F85AC4EB4ED5AB6C2707B8CF51D3F7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_2A0CB3E00325B7A8678707B8CF5142AB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_95707288846B922B29A407B8CF523077" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_90F85AC4EB4ED5AB6C2707B8CF51D3F7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_95707288846B922B29A407B8CF523077" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonStockCapitalSharesReservedForFutureIssuance" xlink:label="loc_us-gaap_CommonStockCapitalSharesReservedForFutureIssuance_9D5B990EF6D7E3CDC88F07B8CF525F5F" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_90F85AC4EB4ED5AB6C2707B8CF51D3F7" xlink:to="loc_us-gaap_CommonStockCapitalSharesReservedForFutureIssuance_9D5B990EF6D7E3CDC88F07B8CF525F5F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_88AE79CFD9ADEFC18DFC07B8CF52BFBE" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_90F85AC4EB4ED5AB6C2707B8CF51D3F7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_88AE79CFD9ADEFC18DFC07B8CF52BFBE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_2A9F10A69CD9A3751E9307B8CF522853" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_90F85AC4EB4ED5AB6C2707B8CF51D3F7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_2A9F10A69CD9A3751E9307B8CF522853" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_3F5643C6E525C207B0BE07B8CF524467" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_90F85AC4EB4ED5AB6C2707B8CF51D3F7" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_3F5643C6E525C207B0BE07B8CF524467" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_FE06FE1F1A5F9ED120CF07B8CF52D951" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_90F85AC4EB4ED5AB6C2707B8CF51D3F7" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_FE06FE1F1A5F9ED120CF07B8CF52D951" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/StockholdersEquityScheduleOfPreTaxIntrinsicValueDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockholdersEquityNoteAbstract" xlink:label="loc_us-gaap_StockholdersEquityNoteAbstract_731CBF65F6235E56A89F07B8CF39B750" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_AAECC3E9E190607642AF07B8CF396C51" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityNoteAbstract_731CBF65F6235E56A89F07B8CF39B750" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_AAECC3E9E190607642AF07B8CF396C51" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/StockholdersEquityScheduleOfStockOptionAndRestrictedStockActivityDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockholdersEquityNoteAbstract" xlink:label="loc_us-gaap_StockholdersEquityNoteAbstract_48A1D1420E1E62E1C98407B8CF3EC6A8" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_31F1A5335E984FF1CC7F07B8CF3E9EA9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityNoteAbstract_48A1D1420E1E62E1C98407B8CF3EC6A8" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_31F1A5335E984FF1CC7F07B8CF3E9EA9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_81362BEF315FFEF98B0E07B8CF3E55E9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_31F1A5335E984FF1CC7F07B8CF3E9EA9" xlink:to="loc_us-gaap_AwardTypeAxis_81362BEF315FFEF98B0E07B8CF3E55E9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_0C9998893E12B79263E107B8CF3E7A27" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_81362BEF315FFEF98B0E07B8CF3E55E9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_0C9998893E12B79263E107B8CF3E7A27" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestrictedStockMember" xlink:label="loc_us-gaap_RestrictedStockMember_C548F1C4B6211BCC070007B8CF3FEAF9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_0C9998893E12B79263E107B8CF3E7A27" xlink:to="loc_us-gaap_RestrictedStockMember_C548F1C4B6211BCC070007B8CF3FEAF9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestrictedStockUnitsRSUMember" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_A463A1236A547DE3D04A07B8CF3F547C" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_0C9998893E12B79263E107B8CF3E7A27" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_A463A1236A547DE3D04A07B8CF3F547C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_755B9A8DC540417396FB07B8CF3F9C4C" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_31F1A5335E984FF1CC7F07B8CF3E9EA9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_755B9A8DC540417396FB07B8CF3F9C4C" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_SharebasedCompensationArrangementBySharebasedPaymentAwardSharesAvailableForIssuanceRollForward" xlink:label="loc_dbx_SharebasedCompensationArrangementBySharebasedPaymentAwardSharesAvailableForIssuanceRollForward_8AB1AA39AA0BC06930A207B8CF3F065F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_755B9A8DC540417396FB07B8CF3F9C4C" xlink:to="loc_dbx_SharebasedCompensationArrangementBySharebasedPaymentAwardSharesAvailableForIssuanceRollForward_8AB1AA39AA0BC06930A207B8CF3F065F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_A034704B0D0D1183C49907B8CF409FF5" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dbx_SharebasedCompensationArrangementBySharebasedPaymentAwardSharesAvailableForIssuanceRollForward_8AB1AA39AA0BC06930A207B8CF3F065F" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_A034704B0D0D1183C49907B8CF409FF5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonStockCapitalSharesReservedForFutureIssuance" xlink:label="loc_us-gaap_CommonStockCapitalSharesReservedForFutureIssuance_8701714FDF4CAD5EEF6A07B8CF40B273" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dbx_SharebasedCompensationArrangementBySharebasedPaymentAwardSharesAvailableForIssuanceRollForward_8AB1AA39AA0BC06930A207B8CF3F065F" xlink:to="loc_us-gaap_CommonStockCapitalSharesReservedForFutureIssuance_8701714FDF4CAD5EEF6A07B8CF40B273" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized_0410D9A6AD0D6348DAE107B8CF409D97" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dbx_SharebasedCompensationArrangementBySharebasedPaymentAwardSharesAvailableForIssuanceRollForward_8AB1AA39AA0BC06930A207B8CF3F065F" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized_0410D9A6AD0D6348DAE107B8CF409D97" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_SharebasedCompensationArrangementBySharebasedPaymentAwardSharesCanceled" xlink:label="loc_dbx_SharebasedCompensationArrangementBySharebasedPaymentAwardSharesCanceled_A22731990EBA7DD0587807B8CF403F29" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dbx_SharebasedCompensationArrangementBySharebasedPaymentAwardSharesAvailableForIssuanceRollForward_8AB1AA39AA0BC06930A207B8CF3F065F" xlink:to="loc_dbx_SharebasedCompensationArrangementBySharebasedPaymentAwardSharesCanceled_A22731990EBA7DD0587807B8CF403F29" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation" xlink:label="loc_us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation_C10BA00F450893A6669707B8CF405703" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dbx_SharebasedCompensationArrangementBySharebasedPaymentAwardSharesAvailableForIssuanceRollForward_8AB1AA39AA0BC06930A207B8CF3F065F" xlink:to="loc_us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation_C10BA00F450893A6669707B8CF405703" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_ShareBasedCompensationArrangementBySharebasedPaymentAwardDecreaseInNumberofSharesAuthorizedFromStockGranted" xlink:label="loc_dbx_ShareBasedCompensationArrangementBySharebasedPaymentAwardDecreaseInNumberofSharesAuthorizedFromStockGranted_4AE19A2088BE52CA312407B8CF41640D" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dbx_SharebasedCompensationArrangementBySharebasedPaymentAwardSharesAvailableForIssuanceRollForward_8AB1AA39AA0BC06930A207B8CF3F065F" xlink:to="loc_dbx_ShareBasedCompensationArrangementBySharebasedPaymentAwardDecreaseInNumberofSharesAuthorizedFromStockGranted_4AE19A2088BE52CA312407B8CF41640D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_AE55969B5F77799ACE5B07B8CF41D649" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dbx_SharebasedCompensationArrangementBySharebasedPaymentAwardSharesAvailableForIssuanceRollForward_8AB1AA39AA0BC06930A207B8CF3F065F" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_AE55969B5F77799ACE5B07B8CF41D649" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_E0495D9F2C7B85DB27DB07B8CF4159A3" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_755B9A8DC540417396FB07B8CF3F9C4C" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_E0495D9F2C7B85DB27DB07B8CF4159A3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_6C1FEAF9A55FCF34C42807B8CF41F919" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_E0495D9F2C7B85DB27DB07B8CF4159A3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_6C1FEAF9A55FCF34C42807B8CF41F919" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod_79F7DC472EB81AE6AE6C07B8CF41EC31" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_E0495D9F2C7B85DB27DB07B8CF4159A3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod_79F7DC472EB81AE6AE6C07B8CF41EC31" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_73FD627883D7E365B4CB07B8CF4134B5" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_E0495D9F2C7B85DB27DB07B8CF4159A3" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_73FD627883D7E365B4CB07B8CF4134B5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_840DC9245A91D7D9521707B8CF42DBB8" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_E0495D9F2C7B85DB27DB07B8CF4159A3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_840DC9245A91D7D9521707B8CF42DBB8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares_1573A7644442886D3B0D07B8CF42DE22" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_755B9A8DC540417396FB07B8CF3F9C4C" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares_1573A7644442886D3B0D07B8CF42DE22" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares_EB847F63AECC6AF6932507B8CF427C3B" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_755B9A8DC540417396FB07B8CF3F9C4C" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares_EB847F63AECC6AF6932507B8CF427C3B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_C4D73D103ADDCA805A8307B8CF424AB4" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_755B9A8DC540417396FB07B8CF3F9C4C" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_C4D73D103ADDCA805A8307B8CF424AB4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_5692E3B3CCA6665E42FE07B8CF427D8C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_C4D73D103ADDCA805A8307B8CF424AB4" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_5692E3B3CCA6665E42FE07B8CF427D8C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice_D60BAD9536EA22569D5407B8CF430295" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_C4D73D103ADDCA805A8307B8CF424AB4" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice_D60BAD9536EA22569D5407B8CF430295" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_D71BB0692EE31D19B65A07B8CF433C26" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_C4D73D103ADDCA805A8307B8CF424AB4" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_D71BB0692EE31D19B65A07B8CF433C26" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_30C71B81BBDCB5DB664907B8CF431FFA" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_C4D73D103ADDCA805A8307B8CF424AB4" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_30C71B81BBDCB5DB664907B8CF431FFA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue_4D2BDA4A15960CD66D0807B8CF430087" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_755B9A8DC540417396FB07B8CF3F9C4C" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue_4D2BDA4A15960CD66D0807B8CF430087" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue_16E59F5FE7E1B18DCD4407B8CF431E61" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_755B9A8DC540417396FB07B8CF3F9C4C" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue_16E59F5FE7E1B18DCD4407B8CF431E61" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract_83FB7A79227BC07797F107B8CF43984E" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_755B9A8DC540417396FB07B8CF3F9C4C" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract_83FB7A79227BC07797F107B8CF43984E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_F2D8AE0529082F7B19DA07B8CF43BDA7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract_83FB7A79227BC07797F107B8CF43984E" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_F2D8AE0529082F7B19DA07B8CF43BDA7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_56D7C686E455AA411D7207B8CF44E1AE" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_755B9A8DC540417396FB07B8CF3F9C4C" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_56D7C686E455AA411D7207B8CF44E1AE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_C52CBE71D287ABB64DC207B8CF44F38D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_56D7C686E455AA411D7207B8CF44E1AE" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_C52CBE71D287ABB64DC207B8CF44F38D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_D7997F2C895ED29E5F2507B8CF444157" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_56D7C686E455AA411D7207B8CF44E1AE" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_D7997F2C895ED29E5F2507B8CF444157" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_ECA5985CCFD9011AD26607B8CF4467AB" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_56D7C686E455AA411D7207B8CF44E1AE" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_ECA5985CCFD9011AD26607B8CF4467AB" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsReleasedinPeriod" xlink:label="loc_dbx_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsReleasedinPeriod_03114FE45D6D2B8289F507B8CF445981" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_56D7C686E455AA411D7207B8CF44E1AE" xlink:to="loc_dbx_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsReleasedinPeriod_03114FE45D6D2B8289F507B8CF445981" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_8BBE282CD09778B7F31307B8CF45E435" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_56D7C686E455AA411D7207B8CF44E1AE" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_8BBE282CD09778B7F31307B8CF45E435" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_4A4780179FF663DB8C5C07B8CF4570FD" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_755B9A8DC540417396FB07B8CF3F9C4C" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_4A4780179FF663DB8C5C07B8CF4570FD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_261E854EF05AF298F68607B8CF454C6B" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_755B9A8DC540417396FB07B8CF3F9C4C" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_261E854EF05AF298F68607B8CF454C6B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_42C8F5EFB2B6A9C0647C07B8CF450C9A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_261E854EF05AF298F68607B8CF454C6B" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_42C8F5EFB2B6A9C0647C07B8CF450C9A" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsReleasedinPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_dbx_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsReleasedinPeriodWeightedAverageGrantDateFairValue_AFD36E55246FA95E676E07B8CF4586BC" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_261E854EF05AF298F68607B8CF454C6B" xlink:to="loc_dbx_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsReleasedinPeriodWeightedAverageGrantDateFairValue_AFD36E55246FA95E676E07B8CF4586BC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_C1ED145C6F734D209E9E07B8CF460CD8" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_261E854EF05AF298F68607B8CF454C6B" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_C1ED145C6F734D209E9E07B8CF460CD8" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_SharesPaidForTaxWithholdingForShareBasedCompensationWeightedAverageGrantDateFairValue" xlink:label="loc_dbx_SharesPaidForTaxWithholdingForShareBasedCompensationWeightedAverageGrantDateFairValue_D208D7C6AAA59428D7CE07B8CF46CD46" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_261E854EF05AF298F68607B8CF454C6B" xlink:to="loc_dbx_SharesPaidForTaxWithholdingForShareBasedCompensationWeightedAverageGrantDateFairValue_D208D7C6AAA59428D7CE07B8CF46CD46" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_7C445AC45C85B552C1A807B8CF46EA7B" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_261E854EF05AF298F68607B8CF454C6B" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_7C445AC45C85B552C1A807B8CF46EA7B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_802DE1F8455AAF0435C007B8CF46BD6A" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_261E854EF05AF298F68607B8CF454C6B" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_802DE1F8455AAF0435C007B8CF46BD6A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_196B8E74EC8DD112490007B8CF46D98E" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_755B9A8DC540417396FB07B8CF3F9C4C" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_196B8E74EC8DD112490007B8CF46D98E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue_3827843CCB722665E4F007B8CF46FEC0" xlink:type="locator" />
    <link:presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_755B9A8DC540417396FB07B8CF3F9C4C" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue_3827843CCB722665E4F007B8CF46FEC0" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/StockholdersEquityTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockholdersEquityNoteAbstract" xlink:label="loc_us-gaap_StockholdersEquityNoteAbstract_B368F4429CC678FEE95807B8CF6A6F28" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfStockByClassTextBlock" xlink:label="loc_us-gaap_ScheduleOfStockByClassTextBlock_CF56958EAF7A875204CE07B8CF6AFAAB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityNoteAbstract_B368F4429CC678FEE95807B8CF6A6F28" xlink:to="loc_us-gaap_ScheduleOfStockByClassTextBlock_CF56958EAF7A875204CE07B8CF6AFAAB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationActivityTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationActivityTableTextBlock_9EE8120E3F44BB0F55D907B8CF6AE829" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityNoteAbstract_B368F4429CC678FEE95807B8CF6A6F28" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationActivityTableTextBlock_9EE8120E3F44BB0F55D907B8CF6AE829" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DisclosureOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTextBlock" xlink:label="loc_us-gaap_DisclosureOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTextBlock_EC1357DA1506882B293007B8CF6A9FF0" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityNoteAbstract_B368F4429CC678FEE95807B8CF6A6F28" xlink:to="loc_us-gaap_DisclosureOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTextBlock_EC1357DA1506882B293007B8CF6A9FF0" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/SubsequentEvents" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SubsequentEventsAbstract" xlink:label="loc_us-gaap_SubsequentEventsAbstract_9F83814398DF8E9129AF07B8CED35764" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SubsequentEventsTextBlock" xlink:label="loc_us-gaap_SubsequentEventsTextBlock_E973F00091BDCCAB4EA907B8CED3A59C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventsAbstract_9F83814398DF8E9129AF07B8CED35764" xlink:to="loc_us-gaap_SubsequentEventsTextBlock_E973F00091BDCCAB4EA907B8CED3A59C" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.dropbox.com/role/SubsequentEventsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SubsequentEventsAbstract" xlink:label="loc_us-gaap_SubsequentEventsAbstract_282101B8E5FB898725F507B8CECE6545" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SubsequentEventTable" xlink:label="loc_us-gaap_SubsequentEventTable_FDBE8279E66EA0B7B49507B8CECF9D41" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventsAbstract_282101B8E5FB898725F507B8CECE6545" xlink:to="loc_us-gaap_SubsequentEventTable_FDBE8279E66EA0B7B49507B8CECF9D41" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_40710FB091E6F081700E07BC8CD6EFC1" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTable_FDBE8279E66EA0B7B49507B8CECF9D41" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_40710FB091E6F081700E07BC8CD6EFC1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_F5DF18AD1731C72A399307BDD3C2752A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_40710FB091E6F081700E07BC8CD6EFC1" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_F5DF18AD1731C72A399307BDD3C2752A" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_HelloSignInc.Member" xlink:label="loc_dbx_HelloSignInc.Member_F9B9212F4E3730B6386D07BCCCA484CD" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_F5DF18AD1731C72A399307BDD3C2752A" xlink:to="loc_dbx_HelloSignInc.Member_F9B9212F4E3730B6386D07BCCCA484CD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_C9D69820157B62DDD2A107B8CED0F4D4" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTable_FDBE8279E66EA0B7B49507B8CECF9D41" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_C9D69820157B62DDD2A107B8CED0F4D4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_97321E01B410A69237BC07B8CED0CA68" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_C9D69820157B62DDD2A107B8CED0F4D4" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_97321E01B410A69237BC07B8CED0CA68" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SubsequentEventMember" xlink:label="loc_us-gaap_SubsequentEventMember_3D03BBC5C5573C533E3D07B8CED0F1B9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_97321E01B410A69237BC07B8CED0CA68" xlink:to="loc_us-gaap_SubsequentEventMember_3D03BBC5C5573C533E3D07B8CED0F1B9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SubsequentEventLineItems" xlink:label="loc_us-gaap_SubsequentEventLineItems_DE1580B424EA7C5DB33D07B8CED01DE5" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTable_FDBE8279E66EA0B7B49507B8CECF9D41" xlink:to="loc_us-gaap_SubsequentEventLineItems_DE1580B424EA7C5DB33D07B8CED01DE5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationConsiderationTransferred1" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferred1_DD2EF48F1DAA9F96714F07B8CED1EBDB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventLineItems_DE1580B424EA7C5DB33D07B8CED01DE5" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferred1_DD2EF48F1DAA9F96714F07B8CED1EBDB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationContingentConsiderationLiability" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationLiability_0079A26C60B45BFBBF7207BEDEEF23F7" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventLineItems_DE1580B424EA7C5DB33D07B8CED01DE5" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationLiability_0079A26C60B45BFBBF7207BEDEEF23F7" xlink:type="arc" />
    <link:loc xlink:href="dbx-20181231.xsd#dbx_BusinessCombinationRequiredServicePeriod" xlink:label="loc_dbx_BusinessCombinationRequiredServicePeriod_11CEBADC9E0650A14E5F07B8CED1FC3B" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventLineItems_DE1580B424EA7C5DB33D07B8CED01DE5" xlink:to="loc_dbx_BusinessCombinationRequiredServicePeriod_11CEBADC9E0650A14E5F07B8CED1FC3B" xlink:type="arc" />
  </link:presentationLink>
</link:linkbase>
