<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with Wdesk from Workiva-->
<!--Copyright 2020 Workiva-->
<!--r:d0b44dc4-5166-4e8b-9a2e-e9f35e911945,g:f61695af-b434-4206-869c-be51f7bb9814-->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:wdc="http://www.wdc.com/20201002" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:num="http://www.xbrl.org/dtr/type/numeric" attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://www.wdc.com/20201002">
  <xs:import namespace="http://fasb.org/srt/2020-01-31" schemaLocation="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd"/>
  <xs:import namespace="http://fasb.org/us-gaap/2020-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd"/>
  <xs:import namespace="http://www.w3.org/1999/xlink" schemaLocation="http://www.xbrl.org/2003/xlink-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/dtr/type/non-numeric" schemaLocation="http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd"/>
  <xs:import namespace="http://www.xbrl.org/dtr/type/numeric" schemaLocation="http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd"/>
  <xs:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/dei/2020-01-31" schemaLocation="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd"/>
  <xs:annotation>
    <xs:appinfo>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="wdc-20201002_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="wdc-20201002_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="wdc-20201002_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="wdc-20201002_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:type="simple"/>
      <link:roleType id="CoverPage" roleURI="http://www.wdc.com/role/CoverPage">
        <link:definition>0001001 - Document - Cover Page</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedConsolidatedBalanceSheets" roleURI="http://www.wdc.com/role/CondensedConsolidatedBalanceSheets">
        <link:definition>1001002 - Statement - Condensed Consolidated Balance Sheets</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedConsolidatedBalanceSheetsParenthetical" roleURI="http://www.wdc.com/role/CondensedConsolidatedBalanceSheetsParenthetical">
        <link:definition>1002003 - Statement - Condensed Consolidated Balance Sheets (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedConsolidatedStatementsofOperations" roleURI="http://www.wdc.com/role/CondensedConsolidatedStatementsofOperations">
        <link:definition>1003004 - Statement - Condensed Consolidated Statements of Operations</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedConsolidatedStatementsofComprehensiveLoss" roleURI="http://www.wdc.com/role/CondensedConsolidatedStatementsofComprehensiveLoss">
        <link:definition>1004005 - Statement - Condensed Consolidated Statements of Comprehensive Loss</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedConsolidatedStatementsofCashFlows" roleURI="http://www.wdc.com/role/CondensedConsolidatedStatementsofCashFlows">
        <link:definition>1005006 - Statement - Condensed Consolidated Statements of Cash Flows</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedConsolidatedStatementsofShareholdersEquity" roleURI="http://www.wdc.com/role/CondensedConsolidatedStatementsofShareholdersEquity">
        <link:definition>1006007 - Statement - Condensed Consolidated Statements of Shareholders' Equity</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OrganizationandBasisofPresentation" roleURI="http://www.wdc.com/role/OrganizationandBasisofPresentation">
        <link:definition>2101101 - Disclosure - Organization and Basis of Presentation</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OrganizationandBasisofPresentationPolicies" roleURI="http://www.wdc.com/role/OrganizationandBasisofPresentationPolicies">
        <link:definition>2202201 - Disclosure - Organization and Basis of Presentation (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OrganizationandBasisofPresentationDetails" roleURI="http://www.wdc.com/role/OrganizationandBasisofPresentationDetails">
        <link:definition>2403401 - Disclosure - Organization and Basis of Presentation (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RecentAccountingPronouncements" roleURI="http://www.wdc.com/role/RecentAccountingPronouncements">
        <link:definition>2104102 - Disclosure - Recent Accounting Pronouncements</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Revenues" roleURI="http://www.wdc.com/role/Revenues">
        <link:definition>2105103 - Disclosure - Revenues</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenuesTables" roleURI="http://www.wdc.com/role/RevenuesTables">
        <link:definition>2306301 - Disclosure - Revenues (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenuesRevenueRemainingPerformanceObligationDetails" roleURI="http://www.wdc.com/role/RevenuesRevenueRemainingPerformanceObligationDetails">
        <link:definition>2407402 - Disclosure - Revenues - Revenue Remaining Performance Obligation (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenuesRevenueRemainingPerformanceObligationDetails_1" roleURI="http://www.wdc.com/role/RevenuesRevenueRemainingPerformanceObligationDetails_1">
        <link:definition>2407402 - Disclosure - Revenues - Revenue Remaining Performance Obligation (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenuesDisaggregationofRevenueDetails" roleURI="http://www.wdc.com/role/RevenuesDisaggregationofRevenueDetails">
        <link:definition>2408403 - Disclosure - Revenues - Disaggregation of Revenue (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenuesAdditionalInformationDetails" roleURI="http://www.wdc.com/role/RevenuesAdditionalInformationDetails">
        <link:definition>2409404 - Disclosure - Revenues - Additional Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SupplementalFinancialStatementData" roleURI="http://www.wdc.com/role/SupplementalFinancialStatementData">
        <link:definition>2110104 - Disclosure - Supplemental Financial Statement Data</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SupplementalFinancialStatementDataTables" roleURI="http://www.wdc.com/role/SupplementalFinancialStatementDataTables">
        <link:definition>2311302 - Disclosure - Supplemental Financial Statement Data (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SupplementalFinancialStatementDataAdditionalInformationDetails" roleURI="http://www.wdc.com/role/SupplementalFinancialStatementDataAdditionalInformationDetails">
        <link:definition>2412405 - Disclosure - Supplemental Financial Statement Data - Additional Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SupplementalFinancialStatementDataInventoryDetails" roleURI="http://www.wdc.com/role/SupplementalFinancialStatementDataInventoryDetails">
        <link:definition>2413406 - Disclosure - Supplemental Financial Statement Data - Inventory (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SupplementalFinancialStatementDataPropertyPlantandEquipmentDetails" roleURI="http://www.wdc.com/role/SupplementalFinancialStatementDataPropertyPlantandEquipmentDetails">
        <link:definition>2414407 - Disclosure - Supplemental Financial Statement Data - Property, Plant and Equipment (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SupplementalFinancialStatementDataGoodwillRollForwardDetails" roleURI="http://www.wdc.com/role/SupplementalFinancialStatementDataGoodwillRollForwardDetails">
        <link:definition>2415408 - Disclosure - Supplemental Financial Statement Data - Goodwill Roll Forward (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SupplementalFinancialStatementDataIntangibleAssetsDetails" roleURI="http://www.wdc.com/role/SupplementalFinancialStatementDataIntangibleAssetsDetails">
        <link:definition>2416409 - Disclosure - Supplemental Financial Statement Data - Intangible Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SupplementalFinancialStatementDataWarrantyAccrualRollForwardDetails" roleURI="http://www.wdc.com/role/SupplementalFinancialStatementDataWarrantyAccrualRollForwardDetails">
        <link:definition>2417410 - Disclosure - Supplemental Financial Statement Data - Warranty Accrual Roll Forward (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SupplementalFinancialStatementDataTotalWarrantyAccrualDetails" roleURI="http://www.wdc.com/role/SupplementalFinancialStatementDataTotalWarrantyAccrualDetails">
        <link:definition>2418411 - Disclosure - Supplemental Financial Statement Data - Total Warranty Accrual (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SupplementalFinancialStatementDataOtherLiabilitiesDetails" roleURI="http://www.wdc.com/role/SupplementalFinancialStatementDataOtherLiabilitiesDetails">
        <link:definition>2419412 - Disclosure - Supplemental Financial Statement Data - Other Liabilities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SupplementalFinancialStatementDataAccumulatedOtherComprehensiveIncomeRollForwardDetails" roleURI="http://www.wdc.com/role/SupplementalFinancialStatementDataAccumulatedOtherComprehensiveIncomeRollForwardDetails">
        <link:definition>2420413 - Disclosure - Supplemental Financial Statement Data - Accumulated Other Comprehensive Income Roll Forward (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsandInvestments" roleURI="http://www.wdc.com/role/FairValueMeasurementsandInvestments">
        <link:definition>2121105 - Disclosure - Fair Value Measurements and Investments</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsandInvestmentsTables" roleURI="http://www.wdc.com/role/FairValueMeasurementsandInvestmentsTables">
        <link:definition>2322303 - Disclosure - Fair Value Measurements and Investments (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsandInvestmentsFinancialAssetsandLiabilitiesMeasuredatFairValueonRecurringBasisDetail" roleURI="http://www.wdc.com/role/FairValueMeasurementsandInvestmentsFinancialAssetsandLiabilitiesMeasuredatFairValueonRecurringBasisDetail">
        <link:definition>2423414 - Disclosure - Fair Value Measurements and Investments - Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsandInvestmentsDebtInstrumentFairValueDetails" roleURI="http://www.wdc.com/role/FairValueMeasurementsandInvestmentsDebtInstrumentFairValueDetails">
        <link:definition>2424415 - Disclosure - Fair Value Measurements and Investments - Debt Instrument Fair Value (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativesInstrumentsandHedgingActivities" roleURI="http://www.wdc.com/role/DerivativesInstrumentsandHedgingActivities">
        <link:definition>2125106 - Disclosure - Derivatives Instruments and Hedging Activities</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativesInstrumentsandHedgingActivitiesDetails" roleURI="http://www.wdc.com/role/DerivativesInstrumentsandHedgingActivitiesDetails">
        <link:definition>2426416 - Disclosure - Derivatives Instruments and Hedging Activities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Debt" roleURI="http://www.wdc.com/role/Debt">
        <link:definition>2127107 - Disclosure - Debt</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtTables" roleURI="http://www.wdc.com/role/DebtTables">
        <link:definition>2328304 - Disclosure - Debt (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtScheduleofDebtDetails" roleURI="http://www.wdc.com/role/DebtScheduleofDebtDetails">
        <link:definition>2429417 - Disclosure - Debt - Schedule of Debt (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtAdditionalInformationDetails" roleURI="http://www.wdc.com/role/DebtAdditionalInformationDetails">
        <link:definition>2430418 - Disclosure - Debt - Additional Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PensionsandOtherPostRetirementBenefitPlans" roleURI="http://www.wdc.com/role/PensionsandOtherPostRetirementBenefitPlans">
        <link:definition>2131108 - Disclosure - Pensions and Other Post-Retirement Benefit Plans</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PensionsandOtherPostRetirementBenefitPlansTables" roleURI="http://www.wdc.com/role/PensionsandOtherPostRetirementBenefitPlansTables">
        <link:definition>2332305 - Disclosure - Pensions and Other Post-Retirement Benefit Plans (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PensionsandOtherPostRetirementBenefitPlansAdditionalInformationDetails" roleURI="http://www.wdc.com/role/PensionsandOtherPostRetirementBenefitPlansAdditionalInformationDetails">
        <link:definition>2433419 - Disclosure - Pensions and Other Post-Retirement Benefit Plans - Additional Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PensionsandOtherPostRetirementBenefitPlansObligationsandFundedStatusDetails" roleURI="http://www.wdc.com/role/PensionsandOtherPostRetirementBenefitPlansObligationsandFundedStatusDetails">
        <link:definition>2434420 - Disclosure - Pensions and Other Post-Retirement Benefit Plans - Obligations and Funded Status (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PensionsandOtherPostRetirementBenefitPlansUnfundedAmountsRecognizedonConsolidatedBalanceSheetsDetails" roleURI="http://www.wdc.com/role/PensionsandOtherPostRetirementBenefitPlansUnfundedAmountsRecognizedonConsolidatedBalanceSheetsDetails">
        <link:definition>2435421 - Disclosure - Pensions and Other Post-Retirement Benefit Plans - Unfunded Amounts Recognized on Consolidated Balance Sheets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RelatedPartiesandRelatedCommitmentsandContingencies" roleURI="http://www.wdc.com/role/RelatedPartiesandRelatedCommitmentsandContingencies">
        <link:definition>2136109 - Disclosure - Related Parties and Related Commitments and Contingencies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RelatedPartiesandRelatedCommitmentsandContingenciesTables" roleURI="http://www.wdc.com/role/RelatedPartiesandRelatedCommitmentsandContingenciesTables">
        <link:definition>2337306 - Disclosure - Related Parties and Related Commitments and Contingencies (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RelatedPartiesandRelatedCommitmentsandContingenciesAdditionalInformationDetails" roleURI="http://www.wdc.com/role/RelatedPartiesandRelatedCommitmentsandContingenciesAdditionalInformationDetails">
        <link:definition>2438422 - Disclosure - Related Parties and Related Commitments and Contingencies - Additional Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RelatedPartiesandRelatedCommitmentsandContingenciesEquityInvestmentsDetails" roleURI="http://www.wdc.com/role/RelatedPartiesandRelatedCommitmentsandContingenciesEquityInvestmentsDetails">
        <link:definition>2439423 - Disclosure - Related Parties and Related Commitments and Contingencies - Equity Investments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RelatedPartiesandRelatedCommitmentsandContingenciesMaximumLossExposureDetails" roleURI="http://www.wdc.com/role/RelatedPartiesandRelatedCommitmentsandContingenciesMaximumLossExposureDetails">
        <link:definition>2440424 - Disclosure - Related Parties and Related Commitments and Contingencies - Maximum Loss Exposure (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RelatedPartiesandRelatedCommitmentsandContingenciesJVLeaseGuaranteesDetails" roleURI="http://www.wdc.com/role/RelatedPartiesandRelatedCommitmentsandContingenciesJVLeaseGuaranteesDetails">
        <link:definition>2441425 - Disclosure - Related Parties and Related Commitments and Contingencies - JV Lease Guarantees (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RelatedPartiesandRelatedCommitmentsandContingenciesJointVentureLeaseAmountsDetails" roleURI="http://www.wdc.com/role/RelatedPartiesandRelatedCommitmentsandContingenciesJointVentureLeaseAmountsDetails">
        <link:definition>2442426 - Disclosure - Related Parties and Related Commitments and Contingencies - Joint Venture Lease Amounts (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LeasesandOtherCommitments" roleURI="http://www.wdc.com/role/LeasesandOtherCommitments">
        <link:definition>2143110 - Disclosure - Leases and Other Commitments</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LeasesandOtherCommitmentsTables" roleURI="http://www.wdc.com/role/LeasesandOtherCommitmentsTables">
        <link:definition>2344307 - Disclosure - Leases and Other Commitments (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LeasesandOtherCommitmentsSupplementalBalanceSheetDetails" roleURI="http://www.wdc.com/role/LeasesandOtherCommitmentsSupplementalBalanceSheetDetails">
        <link:definition>2445427 - Disclosure - Leases and Other Commitments - Supplemental Balance Sheet (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LeasesandOtherCommitmentsSupplementalBalanceSheetDetails_1" roleURI="http://www.wdc.com/role/LeasesandOtherCommitmentsSupplementalBalanceSheetDetails_1">
        <link:definition>2445427 - Disclosure - Leases and Other Commitments - Supplemental Balance Sheet (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LeasesandOtherCommitmentsSupplementalCashFlowDetails" roleURI="http://www.wdc.com/role/LeasesandOtherCommitmentsSupplementalCashFlowDetails">
        <link:definition>2446428 - Disclosure - Leases and Other Commitments - Supplemental Cash Flow (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LeasesandOtherCommitmentsLongTermCommitmentsDetails" roleURI="http://www.wdc.com/role/LeasesandOtherCommitmentsLongTermCommitmentsDetails">
        <link:definition>2447429 - Disclosure - Leases and Other Commitments - Long-Term Commitments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ShareholdersEquity" roleURI="http://www.wdc.com/role/ShareholdersEquity">
        <link:definition>2148111 - Disclosure - Shareholders' Equity</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ShareholdersEquityTables" roleURI="http://www.wdc.com/role/ShareholdersEquityTables">
        <link:definition>2349308 - Disclosure - Shareholders' Equity (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ShareholdersEquityStockBasedCompensationExpenseDetails" roleURI="http://www.wdc.com/role/ShareholdersEquityStockBasedCompensationExpenseDetails">
        <link:definition>2450430 - Disclosure - Shareholders' Equity - Stock-Based Compensation Expense (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ShareholdersEquityUnrecognizedSharebasedCompensationDetails" roleURI="http://www.wdc.com/role/ShareholdersEquityUnrecognizedSharebasedCompensationDetails">
        <link:definition>2451431 - Disclosure - Shareholders' Equity - Unrecognized Share-based Compensation (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ShareholdersEquityStockOptionActivityDetails" roleURI="http://www.wdc.com/role/ShareholdersEquityStockOptionActivityDetails">
        <link:definition>2452432 - Disclosure - Shareholders' Equity - Stock Option Activity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ShareholdersEquityRestrictedStockUnitsAndPerformanceShareUnitsDetails" roleURI="http://www.wdc.com/role/ShareholdersEquityRestrictedStockUnitsAndPerformanceShareUnitsDetails">
        <link:definition>2453433 - Disclosure - Shareholders' Equity - Restricted Stock Units And Performance Share Units (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ShareholdersEquityShareRepurchaseProgramDetails" roleURI="http://www.wdc.com/role/ShareholdersEquityShareRepurchaseProgramDetails">
        <link:definition>2454434 - Disclosure - Shareholders' Equity - Share Repurchase Program (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxExpense" roleURI="http://www.wdc.com/role/IncomeTaxExpense">
        <link:definition>2155112 - Disclosure - Income Tax Expense</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxExpenseTables" roleURI="http://www.wdc.com/role/IncomeTaxExpenseTables">
        <link:definition>2356309 - Disclosure - Income Tax Expense (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxExpenseTaxExpenseandEffectiveTaxRateDetails" roleURI="http://www.wdc.com/role/IncomeTaxExpenseTaxExpenseandEffectiveTaxRateDetails">
        <link:definition>2457435 - Disclosure - Income Tax Expense - Tax Expense and Effective Tax Rate (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxExpenseAdditionalInformationDetails" roleURI="http://www.wdc.com/role/IncomeTaxExpenseAdditionalInformationDetails">
        <link:definition>2458436 - Disclosure - Income Tax Expense - Additional Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NetLossPerCommonShare" roleURI="http://www.wdc.com/role/NetLossPerCommonShare">
        <link:definition>2159113 - Disclosure - Net Loss Per Common Share</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NetLossPerCommonShareTables" roleURI="http://www.wdc.com/role/NetLossPerCommonShareTables">
        <link:definition>2360310 - Disclosure - Net Loss Per Common Share (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NetLossPerCommonShareDetails" roleURI="http://www.wdc.com/role/NetLossPerCommonShareDetails">
        <link:definition>2461437 - Disclosure - Net Loss Per Common Share (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EmployeeTerminationAssetImpairmentandOtherCharges" roleURI="http://www.wdc.com/role/EmployeeTerminationAssetImpairmentandOtherCharges">
        <link:definition>2162114 - Disclosure - Employee Termination, Asset Impairment and Other Charges</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EmployeeTerminationAssetImpairmentandOtherChargesTables" roleURI="http://www.wdc.com/role/EmployeeTerminationAssetImpairmentandOtherChargesTables">
        <link:definition>2363311 - Disclosure - Employee Termination, Asset Impairment and Other Charges (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EmployeeTerminationAssetImpairmentandOtherChargesExpenseRecognitionDetails" roleURI="http://www.wdc.com/role/EmployeeTerminationAssetImpairmentandOtherChargesExpenseRecognitionDetails">
        <link:definition>2464438 - Disclosure - Employee Termination, Asset Impairment and Other Charges - Expense Recognition (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EmployeeTerminationAssetImpairmentandOtherChargesClosureofForeignManufacturingFacilitiesDetails" roleURI="http://www.wdc.com/role/EmployeeTerminationAssetImpairmentandOtherChargesClosureofForeignManufacturingFacilitiesDetails">
        <link:definition>2465439 - Disclosure - Employee Termination, Asset Impairment and Other Charges - Closure of Foreign Manufacturing Facilities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EmployeeTerminationAssetImpairmentandOtherChargesBusinessRealignmentActivitiesDetails" roleURI="http://www.wdc.com/role/EmployeeTerminationAssetImpairmentandOtherChargesBusinessRealignmentActivitiesDetails">
        <link:definition>2466440 - Disclosure - Employee Termination, Asset Impairment and Other Charges - Business Realignment Activities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LegalProceedings" roleURI="http://www.wdc.com/role/LegalProceedings">
        <link:definition>2167115 - Disclosure - Legal Proceedings</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xs:appinfo>
  </xs:annotation>
  <xs:element id="wdc_UnrecognizedTaxBenefitsPayable" abstract="false" name="UnrecognizedTaxBenefitsPayable" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdc_TaxYears2013Through2015Member" abstract="true" name="TaxYears2013Through2015Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="wdc_ComputerEquipmentandSoftwareMember" abstract="true" name="ComputerEquipmentandSoftwareMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="wdc_PurchaseObligationToBePaidAfterYearFour" abstract="false" name="PurchaseObligationToBePaidAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdc_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodAndAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsNetofTax" abstract="false" name="OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodAndAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsNetofTax" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdc_LossOnBusinessInterruption" abstract="false" name="LossOnBusinessInterruption" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdc_SupplementalFinancialInformationLineItems" abstract="true" name="SupplementalFinancialInformationLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="wdc_EffectiveIncomeTaxReconciliationDiscreteTaxEffectsNetTaxDeficiencies" abstract="false" name="EffectiveIncomeTaxReconciliationDiscreteTaxEffectsNetTaxDeficiencies" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdc_NotesReceivableAndInvestmentsInRelatedParties" abstract="false" name="NotesReceivableAndInvestmentsInRelatedParties" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdc_IncomeTaxDisclosureLineItems" abstract="true" name="IncomeTaxDisclosureLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="wdc_SupplementalFinancialInformationTable" abstract="true" name="SupplementalFinancialInformationTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="wdc_AccumulatedOtherComprehensiveIncomeLossRollForward" abstract="true" name="AccumulatedOtherComprehensiveIncomeLossRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="wdc_FormFactorAxis" abstract="true" name="FormFactorAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="wdc_ClientDevicesMember" abstract="true" name="ClientDevicesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="wdc_EmployeeServiceSharebasedCompensationUnrecognizedServiceCostsLineItems" abstract="true" name="EmployeeServiceSharebasedCompensationUnrecognizedServiceCostsLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="wdc_FlashVenturesMember" abstract="true" name="FlashVenturesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="wdc_GuaranteeObligationsMaximumExposureThereafter" abstract="false" name="GuaranteeObligationsMaximumExposureThereafter" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdc_FlashbasedMember" abstract="true" name="FlashbasedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="wdc_U.S.TermLoanB4Member" abstract="true" name="U.S.TermLoanB4Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="wdc_IncomeTaxExaminationPenaltiesAsserted" abstract="false" name="IncomeTaxExaminationPenaltiesAsserted" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdc_EmployeeServiceSharebasedCompensationUnrecognizedServiceCostsTable" abstract="true" name="EmployeeServiceSharebasedCompensationUnrecognizedServiceCostsTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="wdc_InvestmentFundingCommitments" abstract="false" name="InvestmentFundingCommitments" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="num:percentItemType"/>
  <xs:element id="wdc_StockIssuedDuringPeriodValueEmployeeStockPurchasePlanNetOfTaxWithholdings" abstract="false" name="StockIssuedDuringPeriodValueEmployeeStockPurchasePlanNetOfTaxWithholdings" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdc_EmployeeServiceSharebasedCompensationUnrecognizedCostsTableTextBlock" abstract="false" name="EmployeeServiceSharebasedCompensationUnrecognizedCostsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType"/>
  <xs:element id="wdc_PurchaseOptionExercisePriceMember" abstract="true" name="PurchaseOptionExercisePriceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="wdc_UnisVentureMember" abstract="true" name="UnisVentureMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="wdc_RemainingGuaranteeObligationsTableTextBlock" abstract="false" name="RemainingGuaranteeObligationsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType"/>
  <xs:element id="wdc_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlansNetOfTaxWithholdings" abstract="false" name="StockIssuedDuringPeriodSharesEmployeeStockPurchasePlansNetOfTaxWithholdings" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="wdc_LesseeOperatingLeasesSupplementalCashFlowDisclosuresTableTextBlock" abstract="false" name="LesseeOperatingLeasesSupplementalCashFlowDisclosuresTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType"/>
  <xs:element id="wdc_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour" abstract="false" name="LesseeOperatingLeaseLiabilityToBePaidAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdc_PrepaymentsOfFutureDepreciationMember" abstract="true" name="PrepaymentsOfFutureDepreciationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="wdc_GuaranteeObligationsMaximumExposureRemainderOfFiscalYear" abstract="false" name="GuaranteeObligationsMaximumExposureRemainderOfFiscalYear" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdc_IncomeTaxExaminationAdditionalTax" abstract="false" name="IncomeTaxExaminationAdditionalTax" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdc_DividendsDeclared" abstract="false" name="DividendsDeclared" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdc_EquityMethodInvestorNameDomain" abstract="true" name="EquityMethodInvestorNameDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="wdc_AccumulatedOtherComprehensiveIncomeRollforwardAbstract" abstract="true" name="AccumulatedOtherComprehensiveIncomeRollforwardAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="wdc_GuaranteeObligationsMaximumExposureYearTwo" abstract="false" name="GuaranteeObligationsMaximumExposureYearTwo" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdc_FlashAllianceLtdMember" abstract="true" name="FlashAllianceLtdMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="wdc_TaxesPaidOnVestedStockAwardsUnderEmployeeStockPlans" abstract="false" name="TaxesPaidOnVestedStockAwardsUnderEmployeeStockPlans" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdc_LesseeOperatingLeasesSupplementalBalanceSheetDisclosuresTableTextBlock" abstract="false" name="LesseeOperatingLeasesSupplementalBalanceSheetDisclosuresTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType"/>
  <xs:element id="wdc_EquityMethodInvestorNameAxis" abstract="true" name="EquityMethodInvestorNameAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="wdc_WesternDigitalCorpMember" abstract="true" name="WesternDigitalCorpMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="wdc_StockRepurchaseProgramEffectiveUntilJuly252023Member" abstract="true" name="StockRepurchaseProgramEffectiveUntilJuly252023Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="wdc_DataCenterDevicesSolutionsMember" abstract="true" name="DataCenterDevicesSolutionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="wdc_PaymentsForLongTermLoansForRelatedParties" abstract="false" name="PaymentsForLongTermLoansForRelatedParties" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdc_OtherCommitmentPeriod" abstract="false" name="OtherCommitmentPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="wdc_ScheduleOfCommitmentsContingenciesAndGuaranteesTable" abstract="true" name="ScheduleOfCommitmentsContingenciesAndGuaranteesTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="wdc_ShareRepurchaseProgramMember" abstract="true" name="ShareRepurchaseProgramMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="wdc_GuaranteeObligationsMaximumExposureYearFour" abstract="false" name="GuaranteeObligationsMaximumExposureYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdc_TaxYears2010Through2012Member" abstract="true" name="TaxYears2010Through2012Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="wdc_EuropeMiddleEastAndAfricaMember" abstract="true" name="EuropeMiddleEastAndAfricaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="wdc_ShareBasedCompensationArrangementByShareBasedPaymentAwardsEquityInstrumentsOtherThanOptionsForfeitedInPeriodWeightedAverageGrantDateFairValue" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardsEquityInstrumentsOtherThanOptionsForfeitedInPeriodWeightedAverageGrantDateFairValue" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="num:perShareItemType"/>
  <xs:element id="wdc_EmployeeTerminationBenefitsAndOtherChargesDisclosureTextBlock" abstract="false" name="EmployeeTerminationBenefitsAndOtherChargesDisclosureTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType"/>
  <xs:element id="wdc_OtherCommitmentRemainingCommittedPrepayments" abstract="false" name="OtherCommitmentRemainingCommittedPrepayments" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdc_GuaranteeObligationsMaximumExposureYearOne" abstract="false" name="GuaranteeObligationsMaximumExposureYearOne" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdc_IncomeTaxExaminationEstimateofPossibleLossResultingFromTransferPricingAdjustments" abstract="false" name="IncomeTaxExaminationEstimateofPossibleLossResultingFromTransferPricingAdjustments" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdc_EmployeeStockPurchasePlanMember" abstract="true" name="EmployeeStockPurchasePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="wdc_FormFactorDomain" abstract="true" name="FormFactorDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="wdc_OtherMiscellaneousLiabilitiesNoncurrent" abstract="false" name="OtherMiscellaneousLiabilitiesNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdc_ClientSolutionsMember" abstract="true" name="ClientSolutionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="wdc_AggregateValueOfRestrictedStockAwardsVested" abstract="false" name="AggregateValueOfRestrictedStockAwardsVested" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdc_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodAndAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsAndTax" abstract="false" name="OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodAndAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsAndTax" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdc_ConvertibleSeniorNotesDueTwoThousandTwentyMemberMember" abstract="true" name="ConvertibleSeniorNotesDueTwoThousandTwentyMemberMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="wdc_TopTenCustomersMember" abstract="true" name="TopTenCustomersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="wdc_FactoredReceivablesMember" abstract="true" name="FactoredReceivablesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="wdc_CustomerAMember" abstract="true" name="CustomerAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="wdc_FlashPartnersLtdMember" abstract="true" name="FlashPartnersLtdMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="wdc_PartnersOwnershipInVentureBusiness" abstract="false" name="PartnersOwnershipInVentureBusiness" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="num:percentItemType"/>
  <xs:element id="wdc_HDDMember" abstract="true" name="HDDMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="wdc_OffBalanceSheetGuaranteeMember" abstract="true" name="OffBalanceSheetGuaranteeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="wdc_RelatedCostsAndFairValuesBasedOnQuotedMarketPricesTableTextBlock" abstract="false" name="RelatedCostsAndFairValuesBasedOnQuotedMarketPricesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType"/>
  <xs:element id="wdc_OnePointFiftyPercentSeniorConvertibleNotesDueTwoThousandTwentyFourMember" abstract="true" name="OnePointFiftyPercentSeniorConvertibleNotesDueTwoThousandTwentyFourMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="wdc_TaxYear2008Through2009Member" abstract="true" name="TaxYear2008Through2009Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="wdc_BalanceSheetInformationAxis" abstract="true" name="BalanceSheetInformationAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="wdc_Employeeterminationassetimpairmentandothercharges" abstract="false" name="Employeeterminationassetimpairmentandothercharges" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdc_CommonStockValues" abstract="false" name="CommonStockValues" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdc_VariableInterestEntityMaximumLossExposureTableTextBlock" abstract="false" name="VariableInterestEntityMaximumLossExposureTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType"/>
  <xs:element id="wdc_GuaranteeObligationsMaximumExposureYearThree" abstract="false" name="GuaranteeObligationsMaximumExposureYearThree" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdc_PaymentOfPrincipalAmortizationMember" abstract="true" name="PaymentOfPrincipalAmortizationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="wdc_FourPointSeventyFivePercentSeniorUnsecuredNotesDueTwoThousandTwentySixMember" abstract="true" name="FourPointSeventyFivePercentSeniorUnsecuredNotesDueTwoThousandTwentySixMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="wdc_ClosureofForeignManufacturingFacilitiesMember" abstract="true" name="ClosureofForeignManufacturingFacilitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="wdc_GoodwillDisclosureAbstract" abstract="true" name="GoodwillDisclosureAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="wdc_UnissoftWuxiGroupCoLtd.Member" abstract="true" name="UnissoftWuxiGroupCoLtd.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="wdc_FlashForwardLtdMember" abstract="true" name="FlashForwardLtdMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="wdc_IncomeTaxDisclosureTable" abstract="true" name="IncomeTaxDisclosureTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="wdc_BusinessRealignmentActivitiesMember" abstract="true" name="BusinessRealignmentActivitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="wdc_TermLoanA1Member" abstract="true" name="TermLoanA1Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="wdc_NotesReceivableAndInvestmentsInRelatedPartiesTableTextBlock" abstract="false" name="NotesReceivableAndInvestmentsInRelatedPartiesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType"/>
  <xs:element id="wdc_ProceedsFromLongTermLoansForRelatedParties" abstract="false" name="ProceedsFromLongTermLoansForRelatedParties" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wdc_RestrictedStockUnitsAndPerformanceShareUnitsMember" abstract="true" name="RestrictedStockUnitsAndPerformanceShareUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
</xs:schema>
