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<!--XBRL Document Created with the Workiva Platform-->
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  <link:labelLink xlink:role="http://www.xbrl.org/2003/role/link" xlink:type="extended">
    <link:label id="lab_ldos_EquityAwardsGrantedDuringTheYearVestedMember_label_en-US" xlink:label="lab_ldos_EquityAwardsGrantedDuringTheYearVestedMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity Awards Granted During the Year, Vested [Member]</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_ldos_KingMember" xlink:href="ldos-20240312.xsd#ldos_KingMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ldos_KingMember" xlink:to="lab_ldos_KingMember" xlink:type="arc" order="1"/>
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    <link:loc xlink:type="locator" xlink:label="loc_ldos_PorterMember" xlink:href="ldos-20240312.xsd#ldos_PorterMember"/>
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    <link:loc xlink:type="locator" xlink:label="loc_ldos_BellMember" xlink:href="ldos-20240312.xsd#ldos_BellMember"/>
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    <link:loc xlink:type="locator" xlink:label="loc_ldos_SchmanskeMember" xlink:href="ldos-20240312.xsd#ldos_SchmanskeMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ldos_SchmanskeMember" xlink:to="lab_ldos_SchmanskeMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ldos_EquityAwardAdjustmentsMember_label_en-US" xlink:label="lab_ldos_EquityAwardAdjustmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity Award Adjustments [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ldos_EquityAwardAdjustmentsMember" xlink:href="ldos-20240312.xsd#ldos_EquityAwardAdjustmentsMember"/>
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    <link:loc xlink:type="locator" xlink:label="loc_ldos_ReaganMember" xlink:href="ldos-20240312.xsd#ldos_ReaganMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ldos_ReaganMember" xlink:to="lab_ldos_ReaganMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ldos_StevensMember_label_en-US" xlink:label="lab_ldos_StevensMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stevens [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ldos_StevensMember" xlink:href="ldos-20240312.xsd#ldos_StevensMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ldos_StevensMember" xlink:to="lab_ldos_StevensMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ldos_FasanoMember_label_en-US" xlink:label="lab_ldos_FasanoMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fasano [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ldos_FasanoMember" xlink:href="ldos-20240312.xsd#ldos_FasanoMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ldos_FasanoMember" xlink:to="lab_ldos_FasanoMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ldos_EquityAwardsGrantedInPriorYearsVestedMember_label_en-US" xlink:label="lab_ldos_EquityAwardsGrantedInPriorYearsVestedMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity Awards Granted in Prior Years, Vested [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ldos_EquityAwardsGrantedInPriorYearsVestedMember" xlink:href="ldos-20240312.xsd#ldos_EquityAwardsGrantedInPriorYearsVestedMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ldos_EquityAwardsGrantedInPriorYearsVestedMember" xlink:to="lab_ldos_EquityAwardsGrantedInPriorYearsVestedMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ldos_EquityAwardsGrantedDuringTheYearFairValueMember_label_en-US" xlink:label="lab_ldos_EquityAwardsGrantedDuringTheYearFairValueMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity Awards Granted During The Year, Fair Value [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ldos_EquityAwardsGrantedDuringTheYearFairValueMember" xlink:href="ldos-20240312.xsd#ldos_EquityAwardsGrantedDuringTheYearFairValueMember"/>
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    <link:label id="lab_ldos_AdjustmentToCompensationAmountEquityAwards_label_en-US" xlink:label="lab_ldos_AdjustmentToCompensationAmountEquityAwards" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustment To Compensation Amount, Equity Awards</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ldos_AdjustmentToCompensationAmountEquityAwards" xlink:href="ldos-20240312.xsd#ldos_AdjustmentToCompensationAmountEquityAwards"/>
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    <link:label id="lab_ldos_EquityAwardsThatFailedToMeetVestingConditionsMember_label_en-US" xlink:label="lab_ldos_EquityAwardsThatFailedToMeetVestingConditionsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity Awards that Failed to Meet Vesting Conditions [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ldos_EquityAwardsThatFailedToMeetVestingConditionsMember" xlink:href="ldos-20240312.xsd#ldos_EquityAwardsThatFailedToMeetVestingConditionsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ldos_EquityAwardsThatFailedToMeetVestingConditionsMember" xlink:to="lab_ldos_EquityAwardsThatFailedToMeetVestingConditionsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ldos_KroneMember_label_en-US" xlink:label="lab_ldos_KroneMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Krone [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ldos_KroneMember" xlink:href="ldos-20240312.xsd#ldos_KroneMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ldos_KroneMember" xlink:to="lab_ldos_KroneMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ldos_CageMember_label_en-US" xlink:label="lab_ldos_CageMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cage [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ldos_CageMember" xlink:href="ldos-20240312.xsd#ldos_CageMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ldos_CageMember" xlink:to="lab_ldos_CageMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ldos_DeductionsMember_label_en-US" xlink:label="lab_ldos_DeductionsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deductions [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ldos_DeductionsMember" xlink:href="ldos-20240312.xsd#ldos_DeductionsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ldos_DeductionsMember" xlink:to="lab_ldos_DeductionsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ldos_WaterstonMember_label_en-US" xlink:label="lab_ldos_WaterstonMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Waterston [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ldos_WaterstonMember" xlink:href="ldos-20240312.xsd#ldos_WaterstonMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ldos_WaterstonMember" xlink:to="lab_ldos_WaterstonMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ldos_EquityAwardsValueOfDividendsAndOtherEarningsPaidAdjustmentMember_label_en-US" xlink:label="lab_ldos_EquityAwardsValueOfDividendsAndOtherEarningsPaidAdjustmentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity Awards, Value of Dividends and Other Earnings Paid Adjustment [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ldos_EquityAwardsValueOfDividendsAndOtherEarningsPaidAdjustmentMember" xlink:href="ldos-20240312.xsd#ldos_EquityAwardsValueOfDividendsAndOtherEarningsPaidAdjustmentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ldos_EquityAwardsValueOfDividendsAndOtherEarningsPaidAdjustmentMember" xlink:to="lab_ldos_EquityAwardsValueOfDividendsAndOtherEarningsPaidAdjustmentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ldos_HoweMember_label_en-US" xlink:label="lab_ldos_HoweMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Howe [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ldos_HoweMember" xlink:href="ldos-20240312.xsd#ldos_HoweMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ldos_HoweMember" xlink:to="lab_ldos_HoweMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ldos_EquityAwardsChangeInFairValueUnvestedMember_label_en-US" xlink:label="lab_ldos_EquityAwardsChangeInFairValueUnvestedMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity Awards Change In Fair Value, Unvested [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ldos_EquityAwardsChangeInFairValueUnvestedMember" xlink:href="ldos-20240312.xsd#ldos_EquityAwardsChangeInFairValueUnvestedMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ldos_EquityAwardsChangeInFairValueUnvestedMember" xlink:to="lab_ldos_EquityAwardsChangeInFairValueUnvestedMember" xlink:type="arc" order="1"/>
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