<SEC-DOCUMENT>0000859598-17-000180.txt : 20171221
<SEC-HEADER>0000859598-17-000180.hdr.sgml : 20171221
<ACCEPTANCE-DATETIME>20171221171014
ACCESSION NUMBER:		0000859598-17-000180
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20171220
FILED AS OF DATE:		20171221
DATE AS OF CHANGE:		20171221

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SEACOR HOLDINGS INC /NEW/
		CENTRAL INDEX KEY:			0000859598
		STANDARD INDUSTRIAL CLASSIFICATION:	DEEP SEA FOREIGN TRANSPORTATION OF FREIGHT [4412]
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36437
		FILM NUMBER:		171270179

	BUSINESS ADDRESS:	
		STREET 1:		2200 ELLER DRIVE
		STREET 2:		PO BOX 13038
		CITY:			FORT LAUDERDALE
		STATE:			FL
		ZIP:			33316
		BUSINESS PHONE:		954 523-2200

	MAIL ADDRESS:	
		STREET 1:		2200 ELLER DRIVE
		STREET 2:		PO BOX 13038
		CITY:			FORT LAUDERDALE
		STATE:			FL
		ZIP:			33316

	FORMER NAME:	
		FORMER CONFORMED NAME:	SEACOR SMIT INC
		DATE OF NAME CHANGE:	19970515

	FORMER NAME:	
		FORMER CONFORMED NAME:	SEACOR HOLDINGS INC
		DATE OF NAME CHANGE:	19950327

	FORMER NAME:	
		FORMER CONFORMED NAME:	SEACORE HOLDINGS INC
		DATE OF NAME CHANGE:	19950313

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			DORIAN LPG LTD.
		CENTRAL INDEX KEY:			0001596993
		STANDARD INDUSTRIAL CLASSIFICATION:	DEEP SEA FOREIGN TRANSPORTATION OF FREIGHT [4412]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			1T
		FISCAL YEAR END:			0331

	BUSINESS ADDRESS:	
		STREET 1:		27 SIGNAL ROAD
		CITY:			STAMFORD
		STATE:			CT
		ZIP:			06878
		BUSINESS PHONE:		203-978-1234

	MAIL ADDRESS:	
		STREET 1:		27 SIGNAL ROAD
		CITY:			STAMFORD
		STATE:			CT
		ZIP:			06878
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_151389420008902.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2017-12-20</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001596993</issuerCik>
        <issuerName>DORIAN LPG LTD.</issuerName>
        <issuerTradingSymbol>LPG</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000859598</rptOwnerCik>
            <rptOwnerName>SEACOR HOLDINGS INC /NEW/</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2200 ELLER DRIVE, PO BOX 13038</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>FORT LAUDERDALE</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>33316</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Dorian Common shares, $0.01 par value per share</value>
            </securityTitle>
            <transactionDate>
                <value>2017-12-20</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>3977135</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5200000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See FN</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">SeaDor Holdings LLC, a wholly-owned subsidiary of SEACOR Holdings Inc., transferred 3,977,135 shares of Dorian LPG Ltd. common stock that it owned directly to SEACOR Holdings Inc. which, in turn, distributed such 3,977,135 shares as a dividend, on a pro rata basis,  to the holders of record of common stock of SEACOR Holdings Inc. as of December 8, 2017 at 5:00 p.m., New York City time.</footnote>
        <footnote id="F2">SeaDor Holdings LLC, a wholly-owned subsidiary of SEACOR Holdings Inc., directly owns the shares.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ William C. Long, Executive Vice President, Chief Legal Officer and Corporate Secretary</signatureName>
        <signatureDate>2017-12-21</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
