<SEC-DOCUMENT>0001747079-19-000032.txt : 20190517
<SEC-HEADER>0001747079-19-000032.hdr.sgml : 20190517
<ACCEPTANCE-DATETIME>20190517160714
ACCESSION NUMBER:		0001747079-19-000032
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20190503
FILED AS OF DATE:		20190517
DATE AS OF CHANGE:		20190517

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ROLLINS JEFFREY W
		CENTRAL INDEX KEY:			0001180826

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38850
		FILM NUMBER:		19835687

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Twin River Worldwide Holdings, Inc.
		CENTRAL INDEX KEY:			0001747079
		STANDARD INDUSTRIAL CLASSIFICATION:	HOTELS & MOTELS [7011]
		IRS NUMBER:				200904604
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		100 TWIN RIVER ROAD
		CITY:			LINCOLN
		STATE:			RI
		ZIP:			02865
		BUSINESS PHONE:		(401) 475-8474

	MAIL ADDRESS:	
		STREET 1:		100 TWIN RIVER ROAD
		CITY:			LINCOLN
		STATE:			RI
		ZIP:			02865
</SEC-HEADER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>wf-form4a_155812361894924.xml
<DESCRIPTION>FORM 4/A
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2019-05-03</periodOfReport>

    <dateOfOriginalSubmission>2019-05-07</dateOfOriginalSubmission>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001747079</issuerCik>
        <issuerName>Twin River Worldwide Holdings, Inc.</issuerName>
        <issuerTradingSymbol>TRWH</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001180826</rptOwnerCik>
            <rptOwnerName>ROLLINS JEFFREY W</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O TWIN RIVER WORLDWIDE HOLDINGS, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>100 TWIN RIVER RD.</rptOwnerStreet2>
            <rptOwnerCity>LINCOLN</rptOwnerCity>
            <rptOwnerState>RI</rptOwnerState>
            <rptOwnerZipCode>02865</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <transactionDate>
                <value>2019-05-03</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>3184</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>97250</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3409</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>LLC</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">These shares include a grant of restricted stock that was incorrectly reported as a grant of restricted stock units on Table II on the reporting person's originally filed Form 4. The restricted stock will vest on the first anniversary of the date of grant subject to the reporting person's continued services through such date. In addition, this report updates the transaction date for the grant of such restricted stock.</footnote>
        <footnote id="F2">A limited liability corporation over which the reporting person has sole voting and investment power.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Joseph McGrail - Power-of-Attorney In-Fact</signatureName>
        <signatureDate>2019-05-17</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
