<SEC-DOCUMENT>0001628280-18-006246.txt : 20180508
<SEC-HEADER>0001628280-18-006246.hdr.sgml : 20180508
<ACCEPTANCE-DATETIME>20180508161951
ACCESSION NUMBER:		0001628280-18-006246
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20180508
FILED AS OF DATE:		20180508
DATE AS OF CHANGE:		20180508

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			DAgostino James Samuel Jr
		CENTRAL INDEX KEY:			0001345810

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38487
		FILM NUMBER:		18814870

	MAIL ADDRESS:	
		STREET 1:		3435 PIPING ROCK LANE
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77027

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Origin Bancorp, Inc.
		CENTRAL INDEX KEY:			0001516912
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		IRS NUMBER:				721192928
		STATE OF INCORPORATION:			LA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1511 N. TRENTON STREET
		CITY:			RUSTON
		STATE:			LA
		ZIP:			71270
		BUSINESS PHONE:		318-242-7500

	MAIL ADDRESS:	
		STREET 1:		1511 N. TRENTON STREET
		CITY:			RUSTON
		STATE:			LA
		ZIP:			71270

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Community Trust Financial Corp
		DATE OF NAME CHANGE:	20110329
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>wf-form3_152581073256420.xml
<DESCRIPTION>FORM 3
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2018-05-08</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001516912</issuerCik>
        <issuerName>Origin Bancorp, Inc.</issuerName>
        <issuerTradingSymbol>OBNK</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001345810</rptOwnerCik>
            <rptOwnerName>DAgostino James Samuel Jr</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>500 SOUTH SERVICE ROAD EAST</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>RUSTON</rptOwnerCity>
            <rptOwnerState>LA</rptOwnerState>
            <rptOwnerZipCode>71270</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>34788</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>18131</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote.</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Includes 233 shares of unvested restricted stock, which will vest on December 20, 2018, and 26,544 shares held by reporting person and reporting person's spouse as joint tenants.</footnote>
        <footnote id="F2">Represents shares of common stock held by Houston Trust Company. The reporting person serves as Chairman of the board of directors and on the investment committee of Houston Trust Company and has shared voting and dispositive power over the shares. The reporting person disclaims any beneficial ownership in the shares of common stock held by Houston Trust Company, except to the extent of his pecuniary interest in Houston Trust Company. Pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities by any reporting person for purposes of Section 16 or for any other purpose.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Drake Mills, as Attorney-in-Fact</signatureName>
        <signatureDate>2018-05-08</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
