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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2025 Workiva-->
<!--r:5b8a1cee-f0d3-49d2-beb4-2dc5727dd285,g:1acc121a-50f5-49c1-8778-8278736270bf-->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:tenb="http://www.tenable.com/20250331" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:dtr-types="http://www.xbrl.org/dtr/type/2022-03-31" xmlns:dtr-types1="http://www.xbrl.org/dtr/type/2020-01-21" attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://www.tenable.com/20250331">
  <xs:import namespace="http://fasb.org/srt/2024" schemaLocation="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd"/>
  <xs:import namespace="http://fasb.org/us-gaap/2024" schemaLocation="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.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/2020-01-21" schemaLocation="https://www.xbrl.org/dtr/type/2020-01-21/types.xsd"/>
  <xs:import namespace="http://www.xbrl.org/dtr/type/2022-03-31" schemaLocation="https://www.xbrl.org/dtr/type/2022-03-31/types.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/country/2024" schemaLocation="https://xbrl.sec.gov/country/2024/country-2024.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/dei/2024" schemaLocation="https://xbrl.sec.gov/dei/2024/dei-2024.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/ecd/2024" schemaLocation="https://xbrl.sec.gov/ecd/2024/ecd-2024.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="tenb-20250331_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="tenb-20250331_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="tenb-20250331_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="tenb-20250331_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:type="simple"/>
      <link:roleType id="Cover" roleURI="http://www.tenable.com/role/Cover">
        <link:definition>0000001 - Document - Cover</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.tenable.com/role/CONSOLIDATEDBALANCESHEETS">
        <link:definition>9952151 - 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.tenable.com/role/CONSOLIDATEDBALANCESHEETSParenthetical">
        <link:definition>9952152 - 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="CONSOLIDATEDSTATEMENTSOFOPERATIONS" roleURI="http://www.tenable.com/role/CONSOLIDATEDSTATEMENTSOFOPERATIONS">
        <link:definition>9952153 - 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="CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS" roleURI="http://www.tenable.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS">
        <link:definition>9952154 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY" roleURI="http://www.tenable.com/role/CONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY">
        <link:definition>9952155 - 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="CONSOLIDATEDSTATEMENTSOFCASHFLOWS" roleURI="http://www.tenable.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS">
        <link:definition>9952156 - 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="BusinessandSummaryofSignificantAccountingPolicies" roleURI="http://www.tenable.com/role/BusinessandSummaryofSignificantAccountingPolicies">
        <link:definition>9952157 - Disclosure - Business and Summary of Significant Accounting 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="Revenue" roleURI="http://www.tenable.com/role/Revenue">
        <link:definition>9952158 - Disclosure - Revenue</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="CashEquivalentsandShortTermInvestments" roleURI="http://www.tenable.com/role/CashEquivalentsandShortTermInvestments">
        <link:definition>9952159 - Disclosure - Cash Equivalents and Short-Term Investments</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurements" roleURI="http://www.tenable.com/role/FairValueMeasurements">
        <link:definition>9952160 - 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="PropertyandEquipmentNet" roleURI="http://www.tenable.com/role/PropertyandEquipmentNet">
        <link:definition>9952161 - Disclosure - Property and Equipment, Net</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="AcquisitionsGoodwillandIntangibleAssets" roleURI="http://www.tenable.com/role/AcquisitionsGoodwillandIntangibleAssets">
        <link:definition>9952162 - Disclosure - Acquisitions, Goodwill and Intangible Assets</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.tenable.com/role/Leases">
        <link:definition>9952163 - 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="Debt" roleURI="http://www.tenable.com/role/Debt">
        <link:definition>9952164 - 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="CommitmentsandContingencies" roleURI="http://www.tenable.com/role/CommitmentsandContingencies">
        <link:definition>9952165 - 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="StockBasedCompensation" roleURI="http://www.tenable.com/role/StockBasedCompensation">
        <link:definition>9952166 - 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="IncomeTaxes" roleURI="http://www.tenable.com/role/IncomeTaxes">
        <link:definition>9952167 - 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="NetLossPerShare" roleURI="http://www.tenable.com/role/NetLossPerShare">
        <link:definition>9952168 - Disclosure - Net Loss 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="GeographicInformation" roleURI="http://www.tenable.com/role/GeographicInformation">
        <link:definition>9952169 - Disclosure - 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="BusinessandSummaryofSignificantAccountingPoliciesPolicies" roleURI="http://www.tenable.com/role/BusinessandSummaryofSignificantAccountingPoliciesPolicies">
        <link:definition>9955511 - Disclosure - Business and Summary of Significant Accounting Policies (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="RevenueTables" roleURI="http://www.tenable.com/role/RevenueTables">
        <link:definition>9955512 - Disclosure - Revenue (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="CashEquivalentsandShortTermInvestmentsTables" roleURI="http://www.tenable.com/role/CashEquivalentsandShortTermInvestmentsTables">
        <link:definition>9955513 - Disclosure - Cash Equivalents and Short-Term Investments (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsTables" roleURI="http://www.tenable.com/role/FairValueMeasurementsTables">
        <link:definition>9955514 - 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="PropertyandEquipmentNetTables" roleURI="http://www.tenable.com/role/PropertyandEquipmentNetTables">
        <link:definition>9955515 - Disclosure - Property and Equipment, Net (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="AcquisitionsGoodwillandIntangibleAssetsTables" roleURI="http://www.tenable.com/role/AcquisitionsGoodwillandIntangibleAssetsTables">
        <link:definition>9955516 - Disclosure - Acquisitions, Goodwill and Intangible Assets (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.tenable.com/role/LeasesTables">
        <link:definition>9955517 - 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="DebtTables" roleURI="http://www.tenable.com/role/DebtTables">
        <link:definition>9955518 - 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="StockBasedCompensationTables" roleURI="http://www.tenable.com/role/StockBasedCompensationTables">
        <link:definition>9955519 - 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="NetLossPerShareTables" roleURI="http://www.tenable.com/role/NetLossPerShareTables">
        <link:definition>9955520 - Disclosure - Net Loss 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="GeographicInformationTables" roleURI="http://www.tenable.com/role/GeographicInformationTables">
        <link:definition>9955521 - Disclosure - 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="RevenueScheduleofRevenueDetails" roleURI="http://www.tenable.com/role/RevenueScheduleofRevenueDetails">
        <link:definition>9955522 - Disclosure - Revenue - Schedule of Revenue (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenueConcentrationsDetails" roleURI="http://www.tenable.com/role/RevenueConcentrationsDetails">
        <link:definition>9955523 - Disclosure - Revenue - Concentrations (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="RevenueContractBalancesDetails" roleURI="http://www.tenable.com/role/RevenueContractBalancesDetails">
        <link:definition>9955524 - Disclosure - Revenue - 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="RevenueRemainingPerformanceObligationsDetails" roleURI="http://www.tenable.com/role/RevenueRemainingPerformanceObligationsDetails">
        <link:definition>9955525 - Disclosure - Revenue - Remaining Performance 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="RevenueScheduleofActivityofDeferredContractCostsDetails" roleURI="http://www.tenable.com/role/RevenueScheduleofActivityofDeferredContractCostsDetails">
        <link:definition>9955526 - Disclosure - Revenue -Schedule of Activity of Deferred Contract Costs (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="CashEquivalentsandShortTermInvestmentsScheduleofAmortizedCostUnrealizedGainandLossandEstimatedFairValueDetails" roleURI="http://www.tenable.com/role/CashEquivalentsandShortTermInvestmentsScheduleofAmortizedCostUnrealizedGainandLossandEstimatedFairValueDetails">
        <link:definition>9955527 - Disclosure - Cash Equivalents and Short-Term Investments - Schedule of Amortized Cost, Unrealized Gain and Loss and Estimated Fair Value (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CashEquivalentsandShortTermInvestmentsScheduleofContractualMaturitiesonShortTermInvestmentsDetails" roleURI="http://www.tenable.com/role/CashEquivalentsandShortTermInvestmentsScheduleofContractualMaturitiesonShortTermInvestmentsDetails">
        <link:definition>9955528 - Disclosure - Cash Equivalents and Short-Term Investments - Schedule of Contractual Maturities on Short-Term Investments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CashEquivalentsandShortTermInvestmentsNarrativeDetails" roleURI="http://www.tenable.com/role/CashEquivalentsandShortTermInvestmentsNarrativeDetails">
        <link:definition>9955529 - Disclosure - Cash Equivalents and Short-Term Investments - 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="FairValueMeasurementsScheduleofAssetsMeasuredAtFairValueonRecurringBasisDetails" roleURI="http://www.tenable.com/role/FairValueMeasurementsScheduleofAssetsMeasuredAtFairValueonRecurringBasisDetails">
        <link:definition>9955530 - Disclosure - Fair Value Measurements -Schedule of Assets Measured At Fair Value on Recurring Basis (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.tenable.com/role/FairValueMeasurementsNarrativeDetails">
        <link:definition>9955531 - 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="PropertyandEquipmentNetScheduleofPropertyandEquipmentNetDetails" roleURI="http://www.tenable.com/role/PropertyandEquipmentNetScheduleofPropertyandEquipmentNetDetails">
        <link:definition>9955532 - Disclosure - Property and Equipment, Net - Schedule of Property 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="PropertyandEquipmentNetNarrativeDetails" roleURI="http://www.tenable.com/role/PropertyandEquipmentNetNarrativeDetails">
        <link:definition>9955533 - Disclosure - Property and Equipment, Net - 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="AcquisitionsGoodwillandIntangibleAssetsNarrativeDetails" roleURI="http://www.tenable.com/role/AcquisitionsGoodwillandIntangibleAssetsNarrativeDetails">
        <link:definition>9955534 - Disclosure - Acquisitions, Goodwill and Intangible Assets - 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="AcquisitionsGoodwillandIntangibleAssetsScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedDetails" roleURI="http://www.tenable.com/role/AcquisitionsGoodwillandIntangibleAssetsScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedDetails">
        <link:definition>9955535 - Disclosure - Acquisitions, Goodwill and Intangible Assets - Schedule Of Recognized Identified Assets Acquired And Liabilities Assumed (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="AcquisitionsGoodwillandIntangibleAssetsScheduleofAcquisitionRelatedExpensesDetails" roleURI="http://www.tenable.com/role/AcquisitionsGoodwillandIntangibleAssetsScheduleofAcquisitionRelatedExpensesDetails">
        <link:definition>9955536 - Disclosure - Acquisitions, Goodwill and Intangible Assets - Schedule of Acquisition-Related Expenses (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="AcquisitionsGoodwillandIntangibleAssetsScheduleofGoodwillDetails" roleURI="http://www.tenable.com/role/AcquisitionsGoodwillandIntangibleAssetsScheduleofGoodwillDetails">
        <link:definition>9955537 - Disclosure - Acquisitions, Goodwill and Intangible Assets - Schedule of 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="AcquisitionsGoodwillandIntangibleAssetsScheduleofAcquiredIntangibleAssetsSubjecttoAmortizationDetails" roleURI="http://www.tenable.com/role/AcquisitionsGoodwillandIntangibleAssetsScheduleofAcquiredIntangibleAssetsSubjecttoAmortizationDetails">
        <link:definition>9955538 - Disclosure - Acquisitions, Goodwill and Intangible Assets - Schedule of Acquired Intangible Assets Subject to 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="AcquisitionsGoodwillandIntangibleAssetsScheduleofFutureAmortizationofIntangibleAssetsDetails" roleURI="http://www.tenable.com/role/AcquisitionsGoodwillandIntangibleAssetsScheduleofFutureAmortizationofIntangibleAssetsDetails">
        <link:definition>9955539 - Disclosure - Acquisitions, Goodwill and Intangible Assets - Schedule of Future Amortization 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="LeasesScheduleofComponentsofLeaseExpenseDetails" roleURI="http://www.tenable.com/role/LeasesScheduleofComponentsofLeaseExpenseDetails">
        <link:definition>9955540 - Disclosure - Leases -Schedule of Components of Lease 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="LeasesNarrativeDetails" roleURI="http://www.tenable.com/role/LeasesNarrativeDetails">
        <link:definition>9955541 - Disclosure - Leases - 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="LeasesScheduleofSupplementalInformationRelatedtoLeasesDetails" roleURI="http://www.tenable.com/role/LeasesScheduleofSupplementalInformationRelatedtoLeasesDetails">
        <link:definition>9955542 - Disclosure - Leases - Schedule of Supplemental Information Related to Leases (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="LeasesScheduleofOperatingLeaseLiabilityMaturitiesDetails" roleURI="http://www.tenable.com/role/LeasesScheduleofOperatingLeaseLiabilityMaturitiesDetails">
        <link:definition>9955543 - Disclosure - Leases - Schedule of Operating Lease Liability Maturities (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="LeasesScheduleofOperatingLeaseLiabilityMaturitiesDetails_1" roleURI="http://www.tenable.com/role/LeasesScheduleofOperatingLeaseLiabilityMaturitiesDetails_1">
        <link:definition>9955543 - Disclosure - Leases - Schedule of Operating Lease Liability Maturities (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="DebtNarrativeDetails" roleURI="http://www.tenable.com/role/DebtNarrativeDetails">
        <link:definition>9955544 - Disclosure - Debt- 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="DebtScheduleofCarryingValueofTermLoanDetails" roleURI="http://www.tenable.com/role/DebtScheduleofCarryingValueofTermLoanDetails">
        <link:definition>9955545 - Disclosure - Debt -Schedule of Carrying Value of Term Loan (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="DebtScheduleofCarryingValueofTermLoanDetails_1" roleURI="http://www.tenable.com/role/DebtScheduleofCarryingValueofTermLoanDetails_1">
        <link:definition>9955545 - Disclosure - Debt -Schedule of Carrying Value of Term Loan (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="DebtScheduleofMaturitiesofTermLoanDetails" roleURI="http://www.tenable.com/role/DebtScheduleofMaturitiesofTermLoanDetails">
        <link:definition>9955546 - Disclosure - Debt -Schedule of Maturities of Term Loan (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="CommitmentsandContingenciesDetails" roleURI="http://www.tenable.com/role/CommitmentsandContingenciesDetails">
        <link:definition>9955547 - Disclosure - Commitments and Contingencies (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="StockBasedCompensationScheduleofStockBasedCompensationExpenseDetails" roleURI="http://www.tenable.com/role/StockBasedCompensationScheduleofStockBasedCompensationExpenseDetails">
        <link:definition>9955548 - Disclosure - Stock-Based Compensation - Schedule of Stock-Based Compensation Expense (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensationScheduleofUnrecognizedStockBasedCompensationDetails" roleURI="http://www.tenable.com/role/StockBasedCompensationScheduleofUnrecognizedStockBasedCompensationDetails">
        <link:definition>9955549 - Disclosure - Stock-Based Compensation - Schedule of Unrecognized Stock-Based Compensation (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensationScheduleofRSUsandPSUsDetails" roleURI="http://www.tenable.com/role/StockBasedCompensationScheduleofRSUsandPSUsDetails">
        <link:definition>9955550 - Disclosure - Stock-Based Compensation - Schedule of RSUs and PSUs (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="StockBasedCompensationNarrativeDetails" roleURI="http://www.tenable.com/role/StockBasedCompensationNarrativeDetails">
        <link:definition>9955551 - Disclosure - Stock-Based Compensation - 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="StockBasedCompensationScheduleofStockOptionActivityDetails" roleURI="http://www.tenable.com/role/StockBasedCompensationScheduleofStockOptionActivityDetails">
        <link:definition>9955552 - Disclosure - Stock-Based Compensation - Schedule of Stock Option Activity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensationScheduleofFairValueAssumptionsDetails" roleURI="http://www.tenable.com/role/StockBasedCompensationScheduleofFairValueAssumptionsDetails">
        <link:definition>9955553 - Disclosure - Stock-Based Compensation -Schedule of Fair Value 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="IncomeTaxesDetails" roleURI="http://www.tenable.com/role/IncomeTaxesDetails">
        <link:definition>9955554 - Disclosure - 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="NetLossPerShareScheduleofComputationofBasicandDilutedNetLossPerShareDetails" roleURI="http://www.tenable.com/role/NetLossPerShareScheduleofComputationofBasicandDilutedNetLossPerShareDetails">
        <link:definition>9955555 - Disclosure - Net Loss Per Share -Schedule of Computation of Basic and Diluted Net Loss 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="NetLossPerShareScheduleofPotentiallyDilutiveSecuritiesDetails" roleURI="http://www.tenable.com/role/NetLossPerShareScheduleofPotentiallyDilutiveSecuritiesDetails">
        <link:definition>9955556 - Disclosure - Net Loss Per Share - Schedule of 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="GeographicInformationNarrativeDetails" roleURI="http://www.tenable.com/role/GeographicInformationNarrativeDetails">
        <link:definition>9955557 - Disclosure - 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="GeographicInformationScheduleofRevenuebyGeographicRegionDetails" roleURI="http://www.tenable.com/role/GeographicInformationScheduleofRevenuebyGeographicRegionDetails">
        <link:definition>9955558 - Disclosure - Geographic Information - Schedule of 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="GeographicInformationScheduleofPropertyandEquipmentNetbyGeographicAreaDetails" roleURI="http://www.tenable.com/role/GeographicInformationScheduleofPropertyandEquipmentNetbyGeographicAreaDetails">
        <link:definition>9955559 - Disclosure - Geographic Information -Schedule of Property and Equipment, Net by Geographic Area (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="tenb_StockIssuedDuringPeriodSharesRestrictedStockUnit" abstract="false" name="StockIssuedDuringPeriodSharesRestrictedStockUnit" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="tenb_StockIssuedDuringPeriodValueRestrictedStockUnit" abstract="false" name="StockIssuedDuringPeriodValueRestrictedStockUnit" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tenb_StockIssuedDuringPeriodSharesPerformanceStockUnit" abstract="false" name="StockIssuedDuringPeriodSharesPerformanceStockUnit" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="tenb_StockIssuedDuringPeriodValuePerformanceStockUnit" abstract="false" name="StockIssuedDuringPeriodValuePerformanceStockUnit" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tenb_AdjustmentsToAdditionalPaidInCapitalFairValueOfReplacementEquityAttributableToPreAcquisitionService" abstract="false" name="AdjustmentsToAdditionalPaidInCapitalFairValueOfReplacementEquityAttributableToPreAcquisitionService" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tenb_BusinessCombinationGoodwillAndIntangibleAssetsDisclosureTextBlock" abstract="false" name="BusinessCombinationGoodwillAndIntangibleAssetsDisclosureTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="tenb_SalesMethodRiskMember" abstract="true" name="SalesMethodRiskMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="tenb_OneDistributorMember" abstract="true" name="OneDistributorMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="tenb_RemainingPerformanceObligationsShortTerm" abstract="false" name="RemainingPerformanceObligationsShortTerm" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tenb_RemainingPerformanceObligationsLongTerm" abstract="false" name="RemainingPerformanceObligationsLongTerm" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tenb_CapitalizedContractCostRollForward" abstract="true" name="CapitalizedContractCostRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="tenb_CapitalizedContractCostIncreaseFromCapitalizationOfCosts" abstract="false" name="CapitalizedContractCostIncreaseFromCapitalizationOfCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tenb_YankeeBondMember" abstract="true" name="YankeeBondMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="tenb_CollateralForLettersOfCreditMember" abstract="true" name="CollateralForLettersOfCreditMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="tenb_OtherInvestmentsFairValueDisclosure" abstract="false" name="OtherInvestmentsFairValueDisclosure" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tenb_ProceedsFromSAFEInvestments" abstract="false" name="ProceedsFromSAFEInvestments" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tenb_SAFEInvestmentsReceivable" abstract="false" name="SAFEInvestmentsReceivable" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tenb_DepreciationAndAmortizationPropertyAndEquipment" abstract="false" name="DepreciationAndAmortizationPropertyAndEquipment" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tenb_VulcanCyberLtdMember" abstract="true" name="VulcanCyberLtdMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tenb_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesDeferredRevenue" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesDeferredRevenue" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tenb_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherLiabilitiesNet" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherLiabilitiesNet" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tenb_FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour" abstract="false" name="FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tenb_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour" abstract="false" name="LesseeOperatingLeaseLiabilityToBePaidAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tenb_CreditAgreementMember" abstract="true" name="CreditAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="tenb_DebtInstrumentBasisSpreadOnVariableRateVariableRateFloor" abstract="false" name="DebtInstrumentBasisSpreadOnVariableRateVariableRateFloor" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="tenb_DebtInstrumentAnnualAmortizationPercent" abstract="false" name="DebtInstrumentAnnualAmortizationPercent" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="tenb_DebtInstrumentCovenantLeverageRatioMaximum" abstract="false" name="DebtInstrumentCovenantLeverageRatioMaximum" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="tenb_DebtInstrumentCovenantLeverageRatio" abstract="false" name="DebtInstrumentCovenantLeverageRatio" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="tenb_MicrosoftMember" abstract="true" name="MicrosoftMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tenb_AmazonWebServicesAWSMember" abstract="true" name="AmazonWebServicesAWSMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tenb_PurchaseObligationAmountSpent" abstract="false" name="PurchaseObligationAmountSpent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tenb_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPerformanceAdjustment" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPerformanceAdjustment" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="tenb_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAveragePerformanceAdjustmentDateFairValue" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAveragePerformanceAdjustmentDateFairValue" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:perShareItemType"/>
  <xs:element id="tenb_EquityIncentivePlan2018Member" abstract="true" name="EquityIncentivePlan2018Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="tenb_ShareBasedCompensationArrangementByShareBasedPaymentAwardAdditionalSharesReserved" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardAdditionalSharesReserved" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="tenb_EffectiveIncomeTaxRateReconciliationReconcilingItemsDiscreteChargesAmount" abstract="false" name="EffectiveIncomeTaxRateReconciliationReconcilingItemsDiscreteChargesAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
</xs:schema>
