<SEC-DOCUMENT>0000899243-20-000031.txt : 20200102
<SEC-HEADER>0000899243-20-000031.hdr.sgml : 20200102
<ACCEPTANCE-DATETIME>20200102084413
ACCESSION NUMBER:		0000899243-20-000031
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20200101
FILED AS OF DATE:		20200102
DATE AS OF CHANGE:		20200102

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Murphy Joseph M. Jr.
		CENTRAL INDEX KEY:			0001796954

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-11713
		FILM NUMBER:		20500205

	MAIL ADDRESS:	
		STREET 1:		110 WEST FRONT STREET
		CITY:			RED BANK
		STATE:			NJ
		ZIP:			07701

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			OCEANFIRST FINANCIAL CORP
		CENTRAL INDEX KEY:			0001004702
		STANDARD INDUSTRIAL CLASSIFICATION:	SAVINGS INSTITUTION, FEDERALLY CHARTERED [6035]
		IRS NUMBER:				223412577
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		975 HOOPER AVE
		CITY:			TOMS RIVER
		STATE:			NJ
		ZIP:			08753-8396
		BUSINESS PHONE:		7322404500

	MAIL ADDRESS:	
		STREET 1:		975 HOOPER AVENUE
		CITY:			TOMS RIVER
		STATE:			NJ
		ZIP:			08723

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	OCEAN FINANCIAL CORP
		DATE OF NAME CHANGE:	19951208
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
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<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2020-01-01</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001004702</issuerCik>
        <issuerName>OCEANFIRST FINANCIAL CORP</issuerName>
        <issuerTradingSymbol>OCFC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001796954</rptOwnerCik>
            <rptOwnerName>Murphy Joseph M. Jr.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>110 WEST FRONT STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>RED BANK</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>07701</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2020-01-01</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>160000</value>
                </transactionShares>
                <transactionPricePerShare>
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                <transactionAcquiredDisposedCode>
                    <value>A</value>
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                    <value>D</value>
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                <value>Common Stock</value>
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                <value></value>
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                <sharesOwnedFollowingTransaction>
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                <directOrIndirectOwnership>
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                <natureOfOwnership>
                    <value>By Corporation</value>
                    <footnoteId id="F3"/>
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        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
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                    <footnoteId id="F2"/>
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                <transactionAcquiredDisposedCode>
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                <sharesOwnedFollowingTransaction>
                    <value>24000</value>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Son</value>
                </natureOfOwnership>
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        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
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                    <value>24000</value>
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                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
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                <transactionAcquiredDisposedCode>
                    <value>A</value>
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                <sharesOwnedFollowingTransaction>
                    <value>24000</value>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Daughter</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2020-01-01</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionTimeliness>
                <value></value>
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            <transactionAmounts>
                <transactionShares>
                    <value>20000</value>
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                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
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                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
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                <sharesOwnedFollowingTransaction>
                    <value>20000</value>
                </sharesOwnedFollowingTransaction>
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                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Son</value>
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            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">On January 1, 2020, pursuant to the Agreement and Plan of Merger, dated as of August 9, 2019 (the &quot;Merger Agreement&quot;), by and among OceanFirst Financial Corp. (&quot;OceanFirst&quot;), Country Bank Holding Company, Inc. (&quot;CYHC&quot;) and Midtown Merger Sub Corp., a wholly-owned subsidiary of OceanFirst (&quot;Merger Sub&quot;), Merger Sub merged with and into CYHC (the &quot;First-Step Merger&quot;), with CYHC continuing as the surviving entity and, immediately thereafter, CYHC merged with and into OceanFirst, with OceanFirst continuing as the surviving entity.</footnote>
        <footnote id="F2">(Continued from footnote 1) At the effective time of the First-Step Merger (the &quot;Effective Time&quot;), each share of CYHC common stock issued and outstanding immediately prior to the Effective Time (other than Exception Shares and Dissenting Shares (each as defined in the Merger Agreement)) was converted into the right to receive 2,000 shares of OceanFirst common stock (the &quot;Merger Consideration&quot;). Shares listed in column 4 represent the Merger Consideration that the reporting person became entitled to receive at the Effective Time.</footnote>
        <footnote id="F3">Represents the reporting person's proportionate interest in the shares of OceanFirst common stock held by Value Investors, Inc., a Delaware corporation.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Steven J. Tsimbinos, Power of Attorney</signatureName>
        <signatureDate>2020-01-02</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
