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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019e3b5e-6dcb-7f9c-a834-86646ec6eae2,g:aebfe322-da6c-4f53-bff4-3ad872ca193a-->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:viav="http://www.viavisolutions.com/20260627" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:dtr-types="http://www.xbrl.org/dtr/type/2024-01-31" attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://www.viavisolutions.com/20260627">
  <xs:import namespace="http://fasb.org/srt/2026" schemaLocation="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd"/>
  <xs:import namespace="http://fasb.org/us-gaap/2026" schemaLocation="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.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/2024-01-31" schemaLocation="https://www.xbrl.org/dtr/type/2024-01-31/types.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/country/2026" schemaLocation="https://xbrl.sec.gov/country/2026/country-2026.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/currency/2026" schemaLocation="https://xbrl.sec.gov/currency/2026/currency-2026.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/cyd-af-sub/2026" schemaLocation="https://xbrl.sec.gov/cyd/2026/cyd-af-sub-2026.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/dei/2026" schemaLocation="https://xbrl.sec.gov/dei/2026/dei-2026.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/ecd/2026" schemaLocation="https://xbrl.sec.gov/ecd/2026/ecd-2026.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="viav-20260627_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" 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="viav-20260627_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="viav-20260627_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="viav-20260627_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:type="simple"/>
      <link:roleType id="CoverPage" roleURI="http://www.viavisolutions.com/role/CoverPage">
        <link:definition>0000001 - 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="AuditInformation" roleURI="http://www.viavisolutions.com/role/AuditInformation">
        <link:definition>0000002 - Document - Audit Information</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="CONSOLIDATEDSTATEMENTSOFOPERATIONS" roleURI="http://www.viavisolutions.com/role/CONSOLIDATEDSTATEMENTSOFOPERATIONS">
        <link:definition>9952151 - Statement - 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="CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSSINCOME" roleURI="http://www.viavisolutions.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSSINCOME">
        <link:definition>9952152 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME</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="CONSOLIDATEDBALANCESHEETS" roleURI="http://www.viavisolutions.com/role/CONSOLIDATEDBALANCESHEETS">
        <link:definition>9952153 - Statement - 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="CONSOLIDATEDBALANCESHEETSParenthetical" roleURI="http://www.viavisolutions.com/role/CONSOLIDATEDBALANCESHEETSParenthetical">
        <link:definition>9952154 - Statement - 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="CONSOLIDATEDSTATEMENTSOFCASHFLOWS" roleURI="http://www.viavisolutions.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS">
        <link:definition>9952155 - Statement - 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="CONSOLIDATEDSTATEMENTSOFCASHFLOWSParenthetical" roleURI="http://www.viavisolutions.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSParenthetical">
        <link:definition>9952156 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS (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="CONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY" roleURI="http://www.viavisolutions.com/role/CONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY">
        <link:definition>9952157 - Statement - CONSOLIDATED STATEMENTS OF STOCKHOLDERS' 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="BasisofPresentation" roleURI="http://www.viavisolutions.com/role/BasisofPresentation">
        <link:definition>9952158 - Disclosure - 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="RecentlyIssuedAccountingPronouncements" roleURI="http://www.viavisolutions.com/role/RecentlyIssuedAccountingPronouncements">
        <link:definition>9952159 - Disclosure - Recently Issued 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="EarningsPerShare" roleURI="http://www.viavisolutions.com/role/EarningsPerShare">
        <link:definition>9952160 - Disclosure - Earnings Per 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="AccumulatedOtherComprehensiveLoss" roleURI="http://www.viavisolutions.com/role/AccumulatedOtherComprehensiveLoss">
        <link:definition>9952161 - Disclosure - Accumulated Other 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="Acquisitions" roleURI="http://www.viavisolutions.com/role/Acquisitions">
        <link:definition>9952162 - Disclosure - Acquisitions</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="BalanceSheetandOtherDetails" roleURI="http://www.viavisolutions.com/role/BalanceSheetandOtherDetails">
        <link:definition>9952163 - Disclosure - Balance Sheet and Other 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="InvestmentsandForwardContracts" roleURI="http://www.viavisolutions.com/role/InvestmentsandForwardContracts">
        <link:definition>9952164 - Disclosure - Investments and Forward Contracts</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="FairValueMeasurements" roleURI="http://www.viavisolutions.com/role/FairValueMeasurements">
        <link:definition>9952165 - Disclosure - Fair Value Measurements</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="Goodwill" roleURI="http://www.viavisolutions.com/role/Goodwill">
        <link:definition>9952166 - Disclosure - Goodwill</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="Intangibles" roleURI="http://www.viavisolutions.com/role/Intangibles">
        <link:definition>9952167 - Disclosure - Intangibles</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.viavisolutions.com/role/Debt">
        <link:definition>9952168 - 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="Leases" roleURI="http://www.viavisolutions.com/role/Leases">
        <link:definition>9952169 - Disclosure - Leases</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="Restructuring" roleURI="http://www.viavisolutions.com/role/Restructuring">
        <link:definition>9952170 - Disclosure - Restructuring</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="IncomeTaxes" roleURI="http://www.viavisolutions.com/role/IncomeTaxes">
        <link:definition>9952171 - Disclosure - Income Taxes</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="StockholdersEquity" roleURI="http://www.viavisolutions.com/role/StockholdersEquity">
        <link:definition>9952172 - Disclosure - Stockholders' 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="StockBasedCompensation" roleURI="http://www.viavisolutions.com/role/StockBasedCompensation">
        <link:definition>9952173 - Disclosure - Stock-Based Compensation</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="EmployeePensionandOtherBenefitPlans" roleURI="http://www.viavisolutions.com/role/EmployeePensionandOtherBenefitPlans">
        <link:definition>9952174 - Disclosure - Employee Pension and Other 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="CommitmentsandContingencies" roleURI="http://www.viavisolutions.com/role/CommitmentsandContingencies">
        <link:definition>9952175 - Disclosure - 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="OperatingSegmentsandGeographicInformation" roleURI="http://www.viavisolutions.com/role/OperatingSegmentsandGeographicInformation">
        <link:definition>9952176 - Disclosure - Operating Segments and Geographic Information</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="GovernmentAssistance" roleURI="http://www.viavisolutions.com/role/GovernmentAssistance">
        <link:definition>9952177 - Disclosure - Government Assistance</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="SubsequentEvents" roleURI="http://www.viavisolutions.com/role/SubsequentEvents">
        <link:definition>9952178 - Disclosure - Subsequent Events</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="BasisofPresentationPolicies" roleURI="http://www.viavisolutions.com/role/BasisofPresentationPolicies">
        <link:definition>9955511 - Disclosure - 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="EarningsPerShareTables" roleURI="http://www.viavisolutions.com/role/EarningsPerShareTables">
        <link:definition>9955512 - Disclosure - Earnings Per 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="AccumulatedOtherComprehensiveLossTables" roleURI="http://www.viavisolutions.com/role/AccumulatedOtherComprehensiveLossTables">
        <link:definition>9955513 - Disclosure - Accumulated Other Comprehensive Loss (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="AcquisitionsTables" roleURI="http://www.viavisolutions.com/role/AcquisitionsTables">
        <link:definition>9955514 - Disclosure - Acquisitions (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="BalanceSheetandOtherDetailsTables" roleURI="http://www.viavisolutions.com/role/BalanceSheetandOtherDetailsTables">
        <link:definition>9955515 - Disclosure - Balance Sheet and Other Details (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="FairValueMeasurementsTables" roleURI="http://www.viavisolutions.com/role/FairValueMeasurementsTables">
        <link:definition>9955516 - Disclosure - Fair Value Measurements (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="GoodwillTables" roleURI="http://www.viavisolutions.com/role/GoodwillTables">
        <link:definition>9955517 - Disclosure - Goodwill (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="IntangiblesTables" roleURI="http://www.viavisolutions.com/role/IntangiblesTables">
        <link:definition>9955518 - Disclosure - Intangibles (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="DebtTables" roleURI="http://www.viavisolutions.com/role/DebtTables">
        <link:definition>9955519 - 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="LeasesTables" roleURI="http://www.viavisolutions.com/role/LeasesTables">
        <link:definition>9955520 - Disclosure - Leases (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="RestructuringTables" roleURI="http://www.viavisolutions.com/role/RestructuringTables">
        <link:definition>9955521 - Disclosure - Restructuring (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="IncomeTaxesTables" roleURI="http://www.viavisolutions.com/role/IncomeTaxesTables">
        <link:definition>9955522 - Disclosure - Income Taxes (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="StockholdersEquityTables" roleURI="http://www.viavisolutions.com/role/StockholdersEquityTables">
        <link:definition>9955523 - Disclosure - Stockholders' 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="StockBasedCompensationTables" roleURI="http://www.viavisolutions.com/role/StockBasedCompensationTables">
        <link:definition>9955524 - Disclosure - Stock-Based Compensation (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="EmployeePensionandOtherBenefitPlansTables" roleURI="http://www.viavisolutions.com/role/EmployeePensionandOtherBenefitPlansTables">
        <link:definition>9955525 - Disclosure - Employee Pension and Other 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="CommitmentsandContingenciesTables" roleURI="http://www.viavisolutions.com/role/CommitmentsandContingenciesTables">
        <link:definition>9955526 - Disclosure - 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="OperatingSegmentsandGeographicInformationTables" roleURI="http://www.viavisolutions.com/role/OperatingSegmentsandGeographicInformationTables">
        <link:definition>9955527 - Disclosure - Operating Segments and Geographic Information (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="BasisofPresentationAdditionalInformationDetails" roleURI="http://www.viavisolutions.com/role/BasisofPresentationAdditionalInformationDetails">
        <link:definition>9955528 - Disclosure - Basis of Presentation - 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="EarningsPerShareComputationofBasicandDilutedNetIncomePerShareDetails" roleURI="http://www.viavisolutions.com/role/EarningsPerShareComputationofBasicandDilutedNetIncomePerShareDetails">
        <link:definition>9955529 - Disclosure - Earnings Per Share - Computation of Basic and Diluted Net Income Per 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="EarningsPerShareWeightedAveragePotentiallyDilutiveSecuritiesDetails" roleURI="http://www.viavisolutions.com/role/EarningsPerShareWeightedAveragePotentiallyDilutiveSecuritiesDetails">
        <link:definition>9955530 - Disclosure - Earnings Per Share - Weighted-Average Potentially Dilutive Securities (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="AccumulatedOtherComprehensiveLossDetails" roleURI="http://www.viavisolutions.com/role/AccumulatedOtherComprehensiveLossDetails">
        <link:definition>9955531 - Disclosure - Accumulated Other Comprehensive Loss (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="AcquisitionsNarrativeDetails" roleURI="http://www.viavisolutions.com/role/AcquisitionsNarrativeDetails">
        <link:definition>9955532 - Disclosure - Acquisitions - Narrative (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="AcquisitionsPreliminaryAllocationofPurchasePriceDetails" roleURI="http://www.viavisolutions.com/role/AcquisitionsPreliminaryAllocationofPurchasePriceDetails">
        <link:definition>9955533 - Disclosure - Acquisitions - Preliminary Allocation of Purchase Price (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="AcquisitionsPreliminaryIdentifiedIntangibleAssetsAcquiredDetails" roleURI="http://www.viavisolutions.com/role/AcquisitionsPreliminaryIdentifiedIntangibleAssetsAcquiredDetails">
        <link:definition>9955534 - Disclosure - Acquisitions - Preliminary Identified Intangible Assets Acquired (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="BalanceSheetandOtherDetailsContractBalancesDetails" roleURI="http://www.viavisolutions.com/role/BalanceSheetandOtherDetailsContractBalancesDetails">
        <link:definition>9955535 - Disclosure - Balance Sheet and Other Details - Contract Balances (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="BalanceSheetandOtherDetailsRevenueRemainingPerformanceObligationNarrativeDetails" roleURI="http://www.viavisolutions.com/role/BalanceSheetandOtherDetailsRevenueRemainingPerformanceObligationNarrativeDetails">
        <link:definition>9955536 - Disclosure - Balance Sheet and Other Details - Revenue Remaining Performance Obligation Narrative (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="BalanceSheetandOtherDetailsRevenueRemainingPerformanceObligationNarrativeDetails_1" roleURI="http://www.viavisolutions.com/role/BalanceSheetandOtherDetailsRevenueRemainingPerformanceObligationNarrativeDetails_1">
        <link:definition>9955536 - Disclosure - Balance Sheet and Other Details - Revenue Remaining Performance Obligation Narrative (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="BalanceSheetandOtherDetailsAccountsReceivableReservesandAllowancesDetails" roleURI="http://www.viavisolutions.com/role/BalanceSheetandOtherDetailsAccountsReceivableReservesandAllowancesDetails">
        <link:definition>9955537 - Disclosure - Balance Sheet and Other Details - Accounts Receivable Reserves and Allowances (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="BalanceSheetandOtherDetailsInventoriesDetails" roleURI="http://www.viavisolutions.com/role/BalanceSheetandOtherDetailsInventoriesDetails">
        <link:definition>9955538 - Disclosure - Balance Sheet and Other Details - Inventories (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="BalanceSheetandOtherDetailsPrepaymentsandOtherCurrentAssetsDetails" roleURI="http://www.viavisolutions.com/role/BalanceSheetandOtherDetailsPrepaymentsandOtherCurrentAssetsDetails">
        <link:definition>9955539 - Disclosure - Balance Sheet and Other Details - Prepayments and Other Current 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="BalanceSheetandOtherDetailsPropertyPlantandEquipmentnetDetails" roleURI="http://www.viavisolutions.com/role/BalanceSheetandOtherDetailsPropertyPlantandEquipmentnetDetails">
        <link:definition>9955540 - Disclosure - Balance Sheet and Other Details - Property, Plant and Equipment, net (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="BalanceSheetandOtherDetailsOtherNonCurrentAssetsDetails" roleURI="http://www.viavisolutions.com/role/BalanceSheetandOtherDetailsOtherNonCurrentAssetsDetails">
        <link:definition>9955541 - Disclosure - Balance Sheet and Other Details - Other Non-Current 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="BalanceSheetandOtherDetailsOtherCurrentLiabilitiesDetails" roleURI="http://www.viavisolutions.com/role/BalanceSheetandOtherDetailsOtherCurrentLiabilitiesDetails">
        <link:definition>9955542 - Disclosure - Balance Sheet and Other Details - Other Current 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="BalanceSheetandOtherDetailsOtherNonCurrentLiabilitiesDetails" roleURI="http://www.viavisolutions.com/role/BalanceSheetandOtherDetailsOtherNonCurrentLiabilitiesDetails">
        <link:definition>9955543 - Disclosure - Balance Sheet and Other Details - Other Non-Current 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="BalanceSheetandOtherDetailsInterestandOtherIncomenetDetails" roleURI="http://www.viavisolutions.com/role/BalanceSheetandOtherDetailsInterestandOtherIncomenetDetails">
        <link:definition>9955544 - Disclosure - Balance Sheet and Other Details - Interest and Other Income, net (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="InvestmentsandForwardContractsAdditionalInformationDetails" roleURI="http://www.viavisolutions.com/role/InvestmentsandForwardContractsAdditionalInformationDetails">
        <link:definition>9955545 - Disclosure - Investments and Forward Contracts - 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="FairValueMeasurementsScheduleofFairValueMeasurementsDetails" roleURI="http://www.viavisolutions.com/role/FairValueMeasurementsScheduleofFairValueMeasurementsDetails">
        <link:definition>9955546 - Disclosure - Fair Value Measurements - Schedule of Fair Value Measurements (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="FairValueMeasurementsScheduleofFairValueMeasurementsDetails_1" roleURI="http://www.viavisolutions.com/role/FairValueMeasurementsScheduleofFairValueMeasurementsDetails_1">
        <link:definition>9955546 - Disclosure - Fair Value Measurements - Schedule of Fair Value Measurements (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="FairValueMeasurementsNarrativeDetails" roleURI="http://www.viavisolutions.com/role/FairValueMeasurementsNarrativeDetails">
        <link:definition>9955547 - Disclosure - Fair Value Measurements - Narrative (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="FairValueMeasurementsOtherFairValueMeasuresDetails" roleURI="http://www.viavisolutions.com/role/FairValueMeasurementsOtherFairValueMeasuresDetails">
        <link:definition>9955548 - Disclosure - Fair Value Measurements - Other Fair Value Measures (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="GoodwillChangesinGoodwillDetails" roleURI="http://www.viavisolutions.com/role/GoodwillChangesinGoodwillDetails">
        <link:definition>9955549 - Disclosure - Goodwill - Changes in Goodwill (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="IntangiblesSummaryofIntangibleAssetsDetails" roleURI="http://www.viavisolutions.com/role/IntangiblesSummaryofIntangibleAssetsDetails">
        <link:definition>9955550 - Disclosure - Intangibles - Summary of 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="IntangiblesEstimatedFutureAmortizationDetails" roleURI="http://www.viavisolutions.com/role/IntangiblesEstimatedFutureAmortizationDetails">
        <link:definition>9955551 - Disclosure - Intangibles - Estimated Future Amortization (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="DebtCarryingAmountsoftheLiabilityandEquityComponentsDetails" roleURI="http://www.viavisolutions.com/role/DebtCarryingAmountsoftheLiabilityandEquityComponentsDetails">
        <link:definition>9955552 - Disclosure - Debt - Carrying Amounts of the Liability and Equity Components (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="DebtTermLoanBDetails" roleURI="http://www.viavisolutions.com/role/DebtTermLoanBDetails">
        <link:definition>9955553 - Disclosure - Debt - Term Loan B (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="Debt0625SeniorConvertibleNotes2031NotesDetails" roleURI="http://www.viavisolutions.com/role/Debt0625SeniorConvertibleNotes2031NotesDetails">
        <link:definition>9955554 - Disclosure - Debt - 0.625% Senior Convertible Notes (2031 Notes) (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="Debt1625SeniorConvertibleNotes2026NotesDetails" roleURI="http://www.viavisolutions.com/role/Debt1625SeniorConvertibleNotes2026NotesDetails">
        <link:definition>9955555 - Disclosure - Debt - 1.625% Senior Convertible Notes (2026 Notes) (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="Debt375SeniorNotes2029NotesDetails" roleURI="http://www.viavisolutions.com/role/Debt375SeniorNotes2029NotesDetails">
        <link:definition>9955556 - Disclosure - Debt - 3.75% Senior Notes (2029 Notes) (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="Debt100SeniorConvertibleNotes2024NotesDetails" roleURI="http://www.viavisolutions.com/role/Debt100SeniorConvertibleNotes2024NotesDetails">
        <link:definition>9955557 - Disclosure - Debt - 1.00% Senior Convertible Notes (2024 Notes) (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="DebtSeniorSecuredAssetBasedRevolvingCreditFacilityDetails" roleURI="http://www.viavisolutions.com/role/DebtSeniorSecuredAssetBasedRevolvingCreditFacilityDetails">
        <link:definition>9955558 - Disclosure - Debt - Senior Secured Asset-Based Revolving Credit Facility (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="DebtInterestExpenseDetails" roleURI="http://www.viavisolutions.com/role/DebtInterestExpenseDetails">
        <link:definition>9955559 - Disclosure - Debt - Interest 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="LeasesSupplementalBalanceSheetDetails" roleURI="http://www.viavisolutions.com/role/LeasesSupplementalBalanceSheetDetails">
        <link:definition>9955560 - Disclosure - Leases - 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="LeasesFutureMinimumOperatingLeasePaymentsDetails" roleURI="http://www.viavisolutions.com/role/LeasesFutureMinimumOperatingLeasePaymentsDetails">
        <link:definition>9955561 - Disclosure - Leases - Future Minimum Operating Lease Payments (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="LeasesFutureMinimumOperatingLeasePaymentsDetails_1" roleURI="http://www.viavisolutions.com/role/LeasesFutureMinimumOperatingLeasePaymentsDetails_1">
        <link:definition>9955561 - Disclosure - Leases - Future Minimum Operating Lease Payments (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="LeasesAdditionalInformationDetails" roleURI="http://www.viavisolutions.com/role/LeasesAdditionalInformationDetails">
        <link:definition>9955562 - Disclosure - Leases - 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="LeasesAssetRetirementObligationDetails" roleURI="http://www.viavisolutions.com/role/LeasesAssetRetirementObligationDetails">
        <link:definition>9955563 - Disclosure - Leases - Asset Retirement 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="RestructuringAdditionalInformationDetails" roleURI="http://www.viavisolutions.com/role/RestructuringAdditionalInformationDetails">
        <link:definition>9955564 - Disclosure - Restructuring - 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="RestructuringAdditionalInformationDetails_1" roleURI="http://www.viavisolutions.com/role/RestructuringAdditionalInformationDetails_1">
        <link:definition>9955564 - Disclosure - Restructuring - 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="RestructuringSummaryofRestructuringPlansDetails" roleURI="http://www.viavisolutions.com/role/RestructuringSummaryofRestructuringPlansDetails">
        <link:definition>9955565 - Disclosure - Restructuring - Summary of Restructuring Plans (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="IncomeTaxesIncomeLossBeforeIncomeTaxesDetails" roleURI="http://www.viavisolutions.com/role/IncomeTaxesIncomeLossBeforeIncomeTaxesDetails">
        <link:definition>9955566 - Disclosure - Income Taxes - Income (Loss) Before Income Taxes (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="IncomeTaxesIncomeTaxExpenseBenefitDetails" roleURI="http://www.viavisolutions.com/role/IncomeTaxesIncomeTaxExpenseBenefitDetails">
        <link:definition>9955567 - Disclosure - Income Taxes - Income Tax Expense (Benefit) (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="IncomeTaxesEffectiveTaxRateReconciliationCurrentYearDetails" roleURI="http://www.viavisolutions.com/role/IncomeTaxesEffectiveTaxRateReconciliationCurrentYearDetails">
        <link:definition>9955568 - Disclosure - Income Taxes - Effective Tax Rate Reconciliation Current Year (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="IncomeTaxesIncomeTaxRateReconciliationDetails" roleURI="http://www.viavisolutions.com/role/IncomeTaxesIncomeTaxRateReconciliationDetails">
        <link:definition>9955569 - Disclosure - Income Taxes - Income Tax Rate Reconciliation (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="IncomeTaxesComponentsofNetDeferredTaxesDetails" roleURI="http://www.viavisolutions.com/role/IncomeTaxesComponentsofNetDeferredTaxesDetails">
        <link:definition>9955570 - Disclosure - Income Taxes - Components of Net Deferred Taxes (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="IncomeTaxesAdditionalInformationDetails" roleURI="http://www.viavisolutions.com/role/IncomeTaxesAdditionalInformationDetails">
        <link:definition>9955571 - Disclosure - Income Taxes - 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="IncomeTaxesChangesinDeferredTaxValuationAllowanceDetails" roleURI="http://www.viavisolutions.com/role/IncomeTaxesChangesinDeferredTaxValuationAllowanceDetails">
        <link:definition>9955572 - Disclosure - Income Taxes - Changes in Deferred Tax Valuation Allowance (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="IncomeTaxesReconciliationofUnrecognizedTaxBenefitsDetails" roleURI="http://www.viavisolutions.com/role/IncomeTaxesReconciliationofUnrecognizedTaxBenefitsDetails">
        <link:definition>9955573 - Disclosure - Income Taxes - Reconciliation of Unrecognized Tax Benefits (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="IncomeTaxesIncomeTaxPaidDetails" roleURI="http://www.viavisolutions.com/role/IncomeTaxesIncomeTaxPaidDetails">
        <link:definition>9955574 - Disclosure - Income Taxes - Income Tax Paid (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="StockholdersEquityAdditionalInformationDetails" roleURI="http://www.viavisolutions.com/role/StockholdersEquityAdditionalInformationDetails">
        <link:definition>9955575 - Disclosure - Stockholders' Equity - 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="StockholdersEquityShareRepurchaseActivityDetails" roleURI="http://www.viavisolutions.com/role/StockholdersEquityShareRepurchaseActivityDetails">
        <link:definition>9955576 - Disclosure - Stockholders' Equity - Share Repurchase 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="StockBasedCompensationAdditionalInformationDetails" roleURI="http://www.viavisolutions.com/role/StockBasedCompensationAdditionalInformationDetails">
        <link:definition>9955577 - Disclosure - Stock-Based Compensation - 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="StockBasedCompensationStockBasedCompensationbyFunctionDetails" roleURI="http://www.viavisolutions.com/role/StockBasedCompensationStockBasedCompensationbyFunctionDetails">
        <link:definition>9955578 - Disclosure - Stock-Based Compensation - Stock-Based Compensation by Function (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="StockBasedCompensationStockBasedCompensationbyFunctionDetails_1" roleURI="http://www.viavisolutions.com/role/StockBasedCompensationStockBasedCompensationbyFunctionDetails_1">
        <link:definition>9955578 - Disclosure - Stock-Based Compensation - Stock-Based Compensation by Function (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="StockBasedCompensationFullValueAwardsActivityDetails" roleURI="http://www.viavisolutions.com/role/StockBasedCompensationFullValueAwardsActivityDetails">
        <link:definition>9955579 - Disclosure - Stock-Based Compensation - Full Value Awards 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="StockBasedCompensationValuationAssumptionsDetails" roleURI="http://www.viavisolutions.com/role/StockBasedCompensationValuationAssumptionsDetails">
        <link:definition>9955580 - Disclosure - Stock-Based Compensation - Valuation Assumptions (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="EmployeePensionandOtherBenefitPlansAdditionalInformationDetails" roleURI="http://www.viavisolutions.com/role/EmployeePensionandOtherBenefitPlansAdditionalInformationDetails">
        <link:definition>9955581 - Disclosure - Employee Pension and Other 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="EmployeePensionandOtherBenefitPlansNetPeriodicBenefitCostDetails" roleURI="http://www.viavisolutions.com/role/EmployeePensionandOtherBenefitPlansNetPeriodicBenefitCostDetails">
        <link:definition>9955582 - Disclosure - Employee Pension and Other Benefit Plans - Net Periodic Benefit Cost (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="EmployeePensionandOtherBenefitPlansChangesintheBenefitObligationsandPlanAssetsDetails" roleURI="http://www.viavisolutions.com/role/EmployeePensionandOtherBenefitPlansChangesintheBenefitObligationsandPlanAssetsDetails">
        <link:definition>9955583 - Disclosure - Employee Pension and Other Benefit Plans - Changes in the Benefit Obligations and Plan 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="EmployeePensionandOtherBenefitPlansAmountsRecognizedonFinancialStatementsDetails" roleURI="http://www.viavisolutions.com/role/EmployeePensionandOtherBenefitPlansAmountsRecognizedonFinancialStatementsDetails">
        <link:definition>9955584 - Disclosure - Employee Pension and Other Benefit Plans - Amounts Recognized on Financial Statements (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="EmployeePensionandOtherBenefitPlansWeightedAverageAssumptionsDetails" roleURI="http://www.viavisolutions.com/role/EmployeePensionandOtherBenefitPlansWeightedAverageAssumptionsDetails">
        <link:definition>9955585 - Disclosure - Employee Pension and Other Benefit Plans - Weighted Average Assumptions (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="EmployeePensionandOtherBenefitPlansAssetsatFairValueandAssetsAllocationsDetails" roleURI="http://www.viavisolutions.com/role/EmployeePensionandOtherBenefitPlansAssetsatFairValueandAssetsAllocationsDetails">
        <link:definition>9955586 - Disclosure - Employee Pension and Other Benefit Plans - Assets at Fair Value and Assets Allocations (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="EmployeePensionandOtherBenefitPlansFutureBenefitPaymentsDetails" roleURI="http://www.viavisolutions.com/role/EmployeePensionandOtherBenefitPlansFutureBenefitPaymentsDetails">
        <link:definition>9955587 - Disclosure - Employee Pension and Other Benefit Plans - Future Benefit Payments (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="CommitmentsandContingenciesPurchaseObligationsDetails" roleURI="http://www.viavisolutions.com/role/CommitmentsandContingenciesPurchaseObligationsDetails">
        <link:definition>9955588 - Disclosure - Commitments and Contingencies - Purchase Obligations (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="CommitmentsandContingenciesFinancingObligationsSantaRosaDetails" roleURI="http://www.viavisolutions.com/role/CommitmentsandContingenciesFinancingObligationsSantaRosaDetails">
        <link:definition>9955589 - Disclosure - Commitments and Contingencies - Financing Obligations - Santa Rosa (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="CommitmentsandContingenciesFutureMinimumAnnualLeasebackPaymentsDetails" roleURI="http://www.viavisolutions.com/role/CommitmentsandContingenciesFutureMinimumAnnualLeasebackPaymentsDetails">
        <link:definition>9955590 - Disclosure - Commitments and Contingencies - Future Minimum Annual Leaseback Payments (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="CommitmentsandContingenciesGuaranteesandOutstandingLettersofCreditandPerformanceBondsDetails" roleURI="http://www.viavisolutions.com/role/CommitmentsandContingenciesGuaranteesandOutstandingLettersofCreditandPerformanceBondsDetails">
        <link:definition>9955591 - Disclosure - Commitments and Contingencies - Guarantees and Outstanding Letters of Credit and Performance Bonds (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="CommitmentsandContingenciesProductWarrantiesDetails" roleURI="http://www.viavisolutions.com/role/CommitmentsandContingenciesProductWarrantiesDetails">
        <link:definition>9955592 - Disclosure - Commitments and Contingencies - Product Warranties (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="CommitmentsandContingenciesTariffsDetails" roleURI="http://www.viavisolutions.com/role/CommitmentsandContingenciesTariffsDetails">
        <link:definition>9955593 - Disclosure - Commitments and Contingencies - Tariffs (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="CommitmentsandContingenciesLegalProceedingsDetails" roleURI="http://www.viavisolutions.com/role/CommitmentsandContingenciesLegalProceedingsDetails">
        <link:definition>9955594 - Disclosure - Commitments and Contingencies - Legal Proceedings (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="OperatingSegmentsandGeographicInformationNarrativeDetails" roleURI="http://www.viavisolutions.com/role/OperatingSegmentsandGeographicInformationNarrativeDetails">
        <link:definition>9955595 - Disclosure - Operating Segments and Geographic Information - Narrative (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="OperatingSegmentsandGeographicInformationSummaryofReportableSegmentsDetails" roleURI="http://www.viavisolutions.com/role/OperatingSegmentsandGeographicInformationSummaryofReportableSegmentsDetails">
        <link:definition>9955596 - Disclosure - Operating Segments and Geographic Information - Summary of Reportable Segments (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="OperatingSegmentsandGeographicInformationNetRevenuebyGeographicRegionDetails" roleURI="http://www.viavisolutions.com/role/OperatingSegmentsandGeographicInformationNetRevenuebyGeographicRegionDetails">
        <link:definition>9955597 - Disclosure - Operating Segments and Geographic Information - Net Revenue by Geographic Region (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="OperatingSegmentsandGeographicInformationPropertyPlantandEquipmentbyGeographicRegionDetails" roleURI="http://www.viavisolutions.com/role/OperatingSegmentsandGeographicInformationPropertyPlantandEquipmentbyGeographicRegionDetails">
        <link:definition>9955598 - Disclosure - Operating Segments and Geographic Information - Property, Plant and Equipment by Geographic Region (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="GovernmentAssistanceDetails" roleURI="http://www.viavisolutions.com/role/GovernmentAssistanceDetails">
        <link:definition>9955599 - Disclosure - Government Assistance (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="SubsequentEventsDetails" roleURI="http://www.viavisolutions.com/role/SubsequentEventsDetails">
        <link:definition>9955600 - Disclosure - Subsequent Events (Details)</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="viav_AuditInformationAbstract" abstract="true" name="AuditInformationAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="viav_FiniteLivedIntangibleAssetsAmortizedExpense" abstract="false" name="FiniteLivedIntangibleAssetsAmortizedExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_AmortizationOfInventoryStepUp" abstract="false" name="AmortizationOfInventoryStepUp" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_PaymentsForProceedsFromAcquisitionAdjustment" abstract="false" name="PaymentsForProceedsFromAcquisitionAdjustment" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_PaymentsForFailedSaleLeasebackAndCapitalLease" abstract="false" name="PaymentsForFailedSaleLeasebackAndCapitalLease" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_BalanceSheetAndOtherDetails" abstract="true" name="BalanceSheetAndOtherDetails" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="viav_AcquiredDevelopedTechnologyAndOtherIntangibles" abstract="true" name="AcquiredDevelopedTechnologyAndOtherIntangibles" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="viav_UnusualOrInfrequentItemsOrBothPolicyPolicyTextBlock" abstract="false" name="UnusualOrInfrequentItemsOrBothPolicyPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="viav_ConcentrationOfCreditAndOtherRisksAndAllowanceForDoubtfulAccountsPolicyTextBlock" abstract="false" name="ConcentrationOfCreditAndOtherRisksAndAllowanceForDoubtfulAccountsPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="viav_ScheduleOfFiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTableTextBlock" abstract="false" name="ScheduleOfFiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="viav_ScheduleOfShareBasedPaymentAwardsValuationAssumptionsTableTextBlock" abstract="false" name="ScheduleOfShareBasedPaymentAwardsValuationAssumptionsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="viav_ScheduleOfDefinedBenefitPlanAmountsRecognizedAndLocationsInFinancialStatementsTableTextBlock" abstract="false" name="ScheduleOfDefinedBenefitPlanAmountsRecognizedAndLocationsInFinancialStatementsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="viav_DemonstrationUnitsMember" abstract="true" name="DemonstrationUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_RestrictedStockUnitsWithMarketAndPerformanceConditionsMember" abstract="true" name="RestrictedStockUnitsWithMarketAndPerformanceConditionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_OneCustomerMember" abstract="true" name="OneCustomerMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_NumberOfGeographicRegionsInWhichEntityOperates" abstract="false" name="NumberOfGeographicRegionsInWhichEntityOperates" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="viav_SeniorOnePercentConvertibleNotesMember" abstract="true" name="SeniorOnePercentConvertibleNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_SeniorOnePointSixTwoFivePercentConvertibleNotesMember" abstract="true" name="SeniorOnePointSixTwoFivePercentConvertibleNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_A0.625SeniorConvertibleNotesMember" abstract="true" name="A0.625SeniorConvertibleNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_SpirentCommunicationsPLCMember" abstract="true" name="SpirentCommunicationsPLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_InertialLabsIncMember" abstract="true" name="InertialLabsIncMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_JacksonLabsTechnologiesLLCMember" abstract="true" name="JacksonLabsTechnologiesLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_RetentionBonusesMember" abstract="true" name="RetentionBonusesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_BusinessCombinationContingentConsiderationArrangementsTargetPeriod" abstract="false" name="BusinessCombinationContingentConsiderationArrangementsTargetPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="viav_RefundOfPrepaidTax" abstract="false" name="RefundOfPrepaidTax" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_AcquisitionRelatedHoldbackNoncurrent" abstract="false" name="AcquisitionRelatedHoldbackNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_AcquisitionRelatedHoldbackReduction" abstract="false" name="AcquisitionRelatedHoldbackReduction" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_BusinessCombinationAcquisitionRelatedCostsTransactionCosts" abstract="false" name="BusinessCombinationAcquisitionRelatedCostsTransactionCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_InertialLabsLLCMember" abstract="true" name="InertialLabsLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedPayrollAndRelatedExpenses" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedPayrollAndRelatedExpenses" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccruedExpenses" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccruedExpenses" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_BusinessCombinationRecognizedLiabilityAssumedDeferredRevenueNoncurrent" abstract="false" name="BusinessCombinationRecognizedLiabilityAssumedDeferredRevenueNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_BusinessCombinationRecognizedLiabilityAssumedUncertainTaxPositions" abstract="false" name="BusinessCombinationRecognizedLiabilityAssumedUncertainTaxPositions" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_BalanceSheetAndOtherDetailsAbstract" abstract="true" name="BalanceSheetAndOtherDetailsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="viav_RevenueFromContractWithCustomerPaymentPeriod" abstract="false" name="RevenueFromContractWithCustomerPaymentPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="viav_ChangeInContractWithCustomerLiabilityRollForward" abstract="true" name="ChangeInContractWithCustomerLiabilityRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="viav_ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentNewContracts" abstract="false" name="ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentNewContracts" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_ContractWithCustomerLiabilityRevenueRecognizedIncludingOpeningBalance" abstract="false" name="ContractWithCustomerLiabilityRevenueRecognizedIncludingOpeningBalance" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_AllowanceForDoubtfulAccountsReceivableAcquisitions" abstract="false" name="AllowanceForDoubtfulAccountsReceivableAcquisitions" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_AllowanceForDoubtfulAccountsReceivableCurrencyTranslationAdjustmentsAndWriteOffsAgainstAllowance" abstract="false" name="AllowanceForDoubtfulAccountsReceivableCurrencyTranslationAdjustmentsAndWriteOffsAgainstAllowance" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_AdvancesToContractManufacturers" abstract="false" name="AdvancesToContractManufacturers" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_FurnitureFixturesSoftwareAndOfficeEquipmentMember" abstract="true" name="FurnitureFixturesSoftwareAndOfficeEquipmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_AcquisitionRelatedHoldbackAndRelatedAccrualsCurrent" abstract="false" name="AcquisitionRelatedHoldbackAndRelatedAccrualsCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_FinancingObligationNoncurrent" abstract="false" name="FinancingObligationNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_OtherNonoperatingIncomeExpenseMiscellaneous" abstract="false" name="OtherNonoperatingIncomeExpenseMiscellaneous" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_SensorsanMember" abstract="true" name="SensorsanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_SeniorThreePointSeventyFivePercentNotesMember" abstract="true" name="SeniorThreePointSeventyFivePercentNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_PaymentForContingentConsiderationLiabilityTotal" abstract="false" name="PaymentForContingentConsiderationLiabilityTotal" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_NetworkAndServiceEnablementMember" abstract="true" name="NetworkAndServiceEnablementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_OpticalSecurityAndPerformanceProductsBusinessSegmentMember" abstract="true" name="OpticalSecurityAndPerformanceProductsBusinessSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_AcquiredDevelopedTechnologyAndOtherIntangiblesAbstract" abstract="true" name="AcquiredDevelopedTechnologyAndOtherIntangiblesAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="viav_ShortTermDebtGross" abstract="false" name="ShortTermDebtGross" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_ConvertibleDebtCarryingValueOfLiabilityComponent" abstract="false" name="ConvertibleDebtCarryingValueOfLiabilityComponent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_SeniorSecuredTermLoanCreditAgreementMember" abstract="true" name="SeniorSecuredTermLoanCreditAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_DebtInstrumentExpectedRemainingTerm" abstract="false" name="DebtInstrumentExpectedRemainingTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="viav_SeniorOnePointSixTwoFiveConvertibleNotesMember" abstract="true" name="SeniorOnePointSixTwoFiveConvertibleNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_ExchangeTransactionMember" abstract="true" name="ExchangeTransactionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_A2022RepurchasePlanMember" abstract="true" name="A2022RepurchasePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_DeferredDebtIssuanceCostsAndUnamortizedDiscountWriteOff" abstract="false" name="DeferredDebtIssuanceCostsAndUnamortizedDiscountWriteOff" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_DebtConversionOriginalDebtAccruedInterestAmount" abstract="false" name="DebtConversionOriginalDebtAccruedInterestAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_DebtInstrumentConvertibleConversionPricePremiumPercentage" abstract="false" name="DebtInstrumentConvertibleConversionPricePremiumPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="viav_DebtInstrumentReclassificationToShortTermDebt" abstract="false" name="DebtInstrumentReclassificationToShortTermDebt" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_ProceedsFromConvertibleDebtBeforeDebtIssuanceCosts" abstract="false" name="ProceedsFromConvertibleDebtBeforeDebtIssuanceCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_GainLossOnInducedConversionAndExtinguishmentOfDebt" abstract="false" name="GainLossOnInducedConversionAndExtinguishmentOfDebt" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_GainLossOnModificationOfDebt" abstract="false" name="GainLossOnModificationOfDebt" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_RepaymentsOfDebtInterest" abstract="false" name="RepaymentsOfDebtInterest" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_DebtInstrumentConvertibleNumberOfNotesConverted" abstract="false" name="DebtInstrumentConvertibleNumberOfNotesConverted" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="viav_SeniorSecuredAssetBasedRevolvingCreditFacilityMember" abstract="true" name="SeniorSecuredAssetBasedRevolvingCreditFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_SterlingOvernightInterbankAverageRateSONIAMember" abstract="true" name="SterlingOvernightInterbankAverageRateSONIAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_EuroInterbankOfferedRateMember" abstract="true" name="EuroInterbankOfferedRateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_CanadianDollarOfferedRateMember" abstract="true" name="CanadianDollarOfferedRateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_LineOfCreditFacilityIncreaseDecreaseToMaximumBorrowingCapacity" abstract="false" name="LineOfCreditFacilityIncreaseDecreaseToMaximumBorrowingCapacity" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_DebtInstrumentCovenantFixedChargeCoverageRatio" abstract="false" name="DebtInstrumentCovenantFixedChargeCoverageRatio" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="viav_DebtInstrumentCovenantBorrowingExcessAvailabilityRateLimit" abstract="false" name="DebtInstrumentCovenantBorrowingExcessAvailabilityRateLimit" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="viav_DebtInstrumentCovenantBorrowingExcessAvailabilityBorrowingBase" abstract="false" name="DebtInstrumentCovenantBorrowingExcessAvailabilityBorrowingBase" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_InterestExpenseDebtOther" abstract="false" name="InterestExpenseDebtOther" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_FiscalYear2026RestructuringPlanMember" abstract="true" name="FiscalYear2026RestructuringPlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_Fiscal2024PlanMember" abstract="true" name="Fiscal2024PlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_FiscalYear2023RestructuringPlanMember" abstract="true" name="FiscalYear2023RestructuringPlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_RestructuringAndRelatedCostExpectedNumberOfPositionsEliminatedPercentage" abstract="false" name="RestructuringAndRelatedCostExpectedNumberOfPositionsEliminatedPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="viav_FiscalYear2024RestructuringPlanMember" abstract="true" name="FiscalYear2024RestructuringPlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_IncomeLossFromContinuingOperationsBeforeIncomeTaxDomesticAndForeignAbstract" abstract="true" name="IncomeLossFromContinuingOperationsBeforeIncomeTaxDomesticAndForeignAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="viav_IncomeLossFromOperationsBeforeIncomeTaxesDomestic" abstract="false" name="IncomeLossFromOperationsBeforeIncomeTaxesDomestic" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_IncomeLossFromOperationsBeforeIncomeTaxesForeign" abstract="false" name="IncomeLossFromOperationsBeforeIncomeTaxesForeign" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_EffectiveIncomeTaxRateReconciliationWithholdingTaxesAmount" abstract="false" name="EffectiveIncomeTaxRateReconciliationWithholdingTaxesAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_EffectiveIncomeTaxRateReconciliationChangeInFairValueOfContingentEarnoutAmount" abstract="false" name="EffectiveIncomeTaxRateReconciliationChangeInFairValueOfContingentEarnoutAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDisallowedCompensationsAmount" abstract="false" name="EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDisallowedCompensationsAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_EffectiveIncomeTaxRateReconciliationWithholdingTaxesPercent" abstract="false" name="EffectiveIncomeTaxRateReconciliationWithholdingTaxesPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="viav_EffectiveIncomeTaxRateReconciliationChangeInFairValueOfContingentEarnoutPercent" abstract="false" name="EffectiveIncomeTaxRateReconciliationChangeInFairValueOfContingentEarnoutPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="viav_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDisallowedCompensationsPercent" abstract="false" name="EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDisallowedCompensationsPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="viav_EffectiveIncomeTaxRateReconciliationTaxWithholding" abstract="false" name="EffectiveIncomeTaxRateReconciliationTaxWithholding" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_EffectiveIncomeTaxRateReconciliationGlobalIntangibleLowTaxIncomeInclusionOfForeignEarnings" abstract="false" name="EffectiveIncomeTaxRateReconciliationGlobalIntangibleLowTaxIncomeInclusionOfForeignEarnings" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_EffectiveIncomeTaxRateReconciliationInternalIntellectualPropertyRestructuringAmount" abstract="false" name="EffectiveIncomeTaxRateReconciliationInternalIntellectualPropertyRestructuringAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_EffectiveIncomeTaxRateReconciliationTransferPricingReservesAmount" abstract="false" name="EffectiveIncomeTaxRateReconciliationTransferPricingReservesAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_EffectiveIncomeTaxRateReconciliationAcquisitionCostsAmount" abstract="false" name="EffectiveIncomeTaxRateReconciliationAcquisitionCostsAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_DeferredTaxAssetsAcquisitionRelated" abstract="false" name="DeferredTaxAssetsAcquisitionRelated" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_DeferredTaxAssetsCapitalizedResearchAndDevelopmentCosts" abstract="false" name="DeferredTaxAssetsCapitalizedResearchAndDevelopmentCosts" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_DeferredTaxLiabilitiesAcquisitionRelated" abstract="false" name="DeferredTaxLiabilitiesAcquisitionRelated" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_DeferredTaxLiabilitiesForeignBranchTaxes" abstract="false" name="DeferredTaxLiabilitiesForeignBranchTaxes" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_AdditionalProvisionOfUSIncomeAndForeignWithholdingTaxesOnRepatriationOfEarnings" abstract="false" name="AdditionalProvisionOfUSIncomeAndForeignWithholdingTaxesOnRepatriationOfEarnings" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_UnrecognizedTaxBenefitsThatWouldImpactValuationAllowances" abstract="false" name="UnrecognizedTaxBenefitsThatWouldImpactValuationAllowances" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_UnderwrittenPublicOfferingMember" abstract="true" name="UnderwrittenPublicOfferingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_PreferredStockIssuanceAuthorizedUndesignatedAmount" abstract="false" name="PreferredStockIssuanceAuthorizedUndesignatedAmount" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="viav_AmendedAndRestatedEquityIncentivePlan2003Member" abstract="true" name="AmendedAndRestatedEquityIncentivePlan2003Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_JDSUniphaseCorporation1998EmployeeStockPurchasePlanMember" abstract="true" name="JDSUniphaseCorporation1998EmployeeStockPurchasePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_FullValueAwardsMember" abstract="true" name="FullValueAwardsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedAndOutstanding" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedAndOutstanding" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="viav_ShareBasedCompensationArrangementByShareBasedPaymentAwardLookBackPeriodSubsequentToPlanModification" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardLookBackPeriodSubsequentToPlanModification" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="viav_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsMinimumRemainingMaturityPeriodOfTradedOptionsUsedForDeterminingImpliedVolatility" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsMinimumRemainingMaturityPeriodOfTradedOptionsUsedForDeterminingImpliedVolatility" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="viav_FullValueAwardsWithMarketConditionsMember" abstract="true" name="FullValueAwardsWithMarketConditionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_NonperformanceSharesMember" abstract="true" name="NonperformanceSharesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantedInPeriodTotalFairValue" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantedInPeriodTotalFairValue" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_MonteCarloSimulationMember" abstract="true" name="MonteCarloSimulationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_BlackScholesMertonValuationModelMember" abstract="true" name="BlackScholesMertonValuationModelMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAverageVolatilityOfPeerCompanies" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAverageVolatilityOfPeerCompanies" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="viav_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAverageCorrelationCoefficientOfPeerCompanies" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAverageCorrelationCoefficientOfPeerCompanies" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="viav_DefinedContributionPlansDisclosureAbstract" abstract="true" name="DefinedContributionPlansDisclosureAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="viav_DefinedContributionPlanMaximumAnnualContributionsPerEmployeeOver50Amount" abstract="false" name="DefinedContributionPlanMaximumAnnualContributionsPerEmployeeOver50Amount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_DefinedContributionPlanEmployerMatchLevelOne" abstract="false" name="DefinedContributionPlanEmployerMatchLevelOne" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="viav_DefinedContributionPlanEmployerMatchEmployeeContributionLevelOne" abstract="false" name="DefinedContributionPlanEmployerMatchEmployeeContributionLevelOne" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="viav_DefinedContributionPlanEmployerMatchLevelTwo" abstract="false" name="DefinedContributionPlanEmployerMatchLevelTwo" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="viav_DefinedContributionPlanEmployerMatchEmployeeContributionLevelTwo" abstract="false" name="DefinedContributionPlanEmployerMatchEmployeeContributionLevelTwo" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="viav_DefinedBenefitPlanFixedIncomeAssetsMaturityPeriodMinimum" abstract="false" name="DefinedBenefitPlanFixedIncomeAssetsMaturityPeriodMinimum" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="viav_DefinedBenefitPlanGiltsIndex" abstract="false" name="DefinedBenefitPlanGiltsIndex" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="viav_DefinedBenefitPlanPlanAssetsPeriodIncreaseDecreaseOther" abstract="false" name="DefinedBenefitPlanPlanAssetsPeriodIncreaseDecreaseOther" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearSixToTen" abstract="false" name="DefinedBenefitPlanExpectedFutureBenefitPaymentsYearSixToTen" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_PurchaseCommitmentExcludingLongTermCommitmentAbstract" abstract="true" name="PurchaseCommitmentExcludingLongTermCommitmentAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="viav_SupplyAgreementTypicalDuration" abstract="false" name="SupplyAgreementTypicalDuration" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="viav_NumberOfLongTermGuaranteedSupplyAgreements" abstract="false" name="NumberOfLongTermGuaranteedSupplyAgreements" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="viav_SantaRosaSaleLeasebackTransactionMember" abstract="true" name="SantaRosaSaleLeasebackTransactionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_SantaRosaSaleLeasebackAmendmentMember" abstract="true" name="SantaRosaSaleLeasebackAmendmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_SaleLeasebackTransactionNetProceedsFinancingObligations" abstract="false" name="SaleLeasebackTransactionNetProceedsFinancingObligations" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_SaleLeasebackTransactionNumberOfRenewalOptions" abstract="false" name="SaleLeasebackTransactionNumberOfRenewalOptions" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="viav_SaleLeasebackTransactionRenewalTerm" abstract="false" name="SaleLeasebackTransactionRenewalTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="viav_NumberOfLeaseAmendments" abstract="false" name="NumberOfLeaseAmendments" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="viav_StandardProductWarrantyTerm" abstract="false" name="StandardProductWarrantyTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="viav_IEEPATariffRefundMember" abstract="true" name="IEEPATariffRefundMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_IEEPATariffRefundApprovedBeforePeriodEndMember" abstract="true" name="IEEPATariffRefundApprovedBeforePeriodEndMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_IEEPATariffRefundAfterBeforePeriodEndMember" abstract="true" name="IEEPATariffRefundAfterBeforePeriodEndMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_IEEPATariffRefundClaimsSubmitted" abstract="false" name="IEEPATariffRefundClaimsSubmitted" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_TelInstrumentsElectronicsCorp.SettlementMember" abstract="true" name="TelInstrumentsElectronicsCorp.SettlementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_LossContingencyNumberOfEmployeesIncludedInTheSettlement" abstract="false" name="LossContingencyNumberOfEmployeesIncludedInTheSettlement" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="viav_OperatingIncomeLossMargin" abstract="false" name="OperatingIncomeLossMargin" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="viav_PrepaidExpenseAndOtherAssetsCurrentAdjusted" abstract="false" name="PrepaidExpenseAndOtherAssetsCurrentAdjusted" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_OtherAmericasMember" abstract="true" name="OtherAmericasMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_OtherAsiaPacificMember" abstract="true" name="OtherAsiaPacificMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_OtherEMEAMember" abstract="true" name="OtherEMEAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_PublicWirelessSupplyChainInnovationFundGrantMember" abstract="true" name="PublicWirelessSupplyChainInnovationFundGrantMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_VALORGrantMember" abstract="true" name="VALORGrantMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="viav_GovernmentAssistanceGrantSpendingRequirement" abstract="false" name="GovernmentAssistanceGrantSpendingRequirement" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_GovernmentAssistanceCashReimbursement" abstract="false" name="GovernmentAssistanceCashReimbursement" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="viav_DirectOpticalResearchCompanyMember" abstract="true" name="DirectOpticalResearchCompanyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
