<SEC-DOCUMENT>0001104659-21-140747.txt : 20211117
<SEC-HEADER>0001104659-21-140747.hdr.sgml : 20211117
<ACCEPTANCE-DATETIME>20211117205745
ACCESSION NUMBER:		0001104659-21-140747
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20211112
FILED AS OF DATE:		20211117
DATE AS OF CHANGE:		20211117

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Day Christopher Haviland
		CENTRAL INDEX KEY:			0001892905

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-40873
		FILM NUMBER:		211422371

	MAIL ADDRESS:	
		STREET 1:		C/O REALTY INCOME CORPORATION
		STREET 2:		11995 EL CAMINO REAL
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92130

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Orion Office REIT Inc.
		CENTRAL INDEX KEY:			0001873923
		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		2325 CAMELBACK ROAD, SUITE 850
		CITY:			PHOENIX
		STATE:			AZ
		ZIP:			85016
		BUSINESS PHONE:		(602) 698-1002

	MAIL ADDRESS:	
		STREET 1:		2325 CAMELBACK ROAD, SUITE 850
		CITY:			PHOENIX
		STATE:			AZ
		ZIP:			85016
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>tm2133165-3_3seq1.xml
<DESCRIPTION>OWNERSHIP DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2021-11-12</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001873923</issuerCik>
        <issuerName>Orion Office REIT Inc.</issuerName>
        <issuerTradingSymbol>ONL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001892905</rptOwnerCik>
            <rptOwnerName>Day Christopher Haviland</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O ORION OFFICE REIT INC.</rptOwnerStreet1>
            <rptOwnerStreet2>2325 E. CAMELBACK ROAD, SUITE 850</rptOwnerStreet2>
            <rptOwnerCity>PHOENIX</rptOwnerCity>
            <rptOwnerState>AZ</rptOwnerState>
            <rptOwnerZipCode>85016</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>SEE REMARKS</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>277</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <remarks>The Reporting Person serves as the Chief Operating Officer and Executive Vice President of the Issuer</remarks>

    <ownerSignature>
        <signatureName>/s/ Christopher  Haviland Day</signatureName>
        <signatureDate>2021-11-17</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
