<SEC-DOCUMENT>0001555362-25-000006.txt : 20251201
<SEC-HEADER>0001555362-25-000006.hdr.sgml : 20251201
<ACCEPTANCE-DATETIME>20251201160509
ACCESSION NUMBER:		0001555362-25-000006
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20251128
FILED AS OF DATE:		20251201
DATE AS OF CHANGE:		20251201

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Earle Edward Chipman
		CENTRAL INDEX KEY:			0001555362
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33891
		FILM NUMBER:		251539626

	MAIL ADDRESS:	
		STREET 1:		2940 RIVERBY ROAD
		STREET 2:		SUITE 400
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77020

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Orion Group Holdings Inc
		CENTRAL INDEX KEY:			0001402829
		STANDARD INDUSTRIAL CLASSIFICATION:	HEAVY CONSTRUCTION OTHER THAN BUILDING CONST - CONTRACTORS [1600]
		ORGANIZATION NAME:           	05 Real Estate & Construction
		EIN:				260097459
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		2940 RIVERBY ROAD
		STREET 2:		SUITE 400
		CITY:			Houston
		STATE:			TX
		ZIP:			77020
		BUSINESS PHONE:		713-852-6500

	MAIL ADDRESS:	
		STREET 1:		2940 RIVERBY ROAD
		STREET 2:		SUITE 400
		CITY:			Houston
		STATE:			TX
		ZIP:			77020

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Orion Marine Group Inc
		DATE OF NAME CHANGE:	20070612
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>form4-12012025_041201.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-11-28</periodOfReport>

    <issuer>
        <issuerCik>0001402829</issuerCik>
        <issuerName>Orion Group Holdings Inc</issuerName>
        <issuerTradingSymbol>ORN</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001555362</rptOwnerCik>
            <rptOwnerName>Earle Edward Chipman</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2940 RIVERBY ROAD</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 400</rptOwnerStreet2>
            <rptOwnerCity>HOUSTON</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>77020</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>true</isOfficer>
            <isTenPercentOwner>false</isTenPercentOwner>
            <isOther>false</isOther>
            <officerTitle>EVP &amp; GENERAL COUNSEL</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2025-11-28</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>5001</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>10</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>125757</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Reflects a reduction of shares of restricted stock withheld to cover taxes payable by the reporting person due to the November 28, 2025, vesting of a portion of the November 27,2023 restricted stock grant.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ E. Chipman Earle</signatureName>
        <signatureDate>2025-12-01</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
