<SEC-DOCUMENT>0001140361-15-029193.txt : 20150730
<SEC-HEADER>0001140361-15-029193.hdr.sgml : 20150730
<ACCEPTANCE-DATETIME>20150730185926
ACCESSION NUMBER:		0001140361-15-029193
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20150728
FILED AS OF DATE:		20150730
DATE AS OF CHANGE:		20150730

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			VISTA GOLD CORP
		CENTRAL INDEX KEY:			0000783324
		STANDARD INDUSTRIAL CLASSIFICATION:	GOLD & SILVER ORES [1040]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			B0
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		7961 SHAFFER PKWY
		CITY:			LITTLETON
		STATE:			CO
		ZIP:			80127
		BUSINESS PHONE:		720-981-1185

	MAIL ADDRESS:	
		STREET 1:		7961 SHAFFER PKWY
		CITY:			LITTLETON
		STATE:			CO
		ZIP:			80127

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	GRANGES INC
		DATE OF NAME CHANGE:	19950602

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	GRANGES EXPLORATION LTD
		DATE OF NAME CHANGE:	19890619

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			OGRYZLO C THOMAS
		CENTRAL INDEX KEY:			0001238277

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-09025
		FILM NUMBER:		151017571

	MAIL ADDRESS:	
		STREET 1:		VISTA GOLD CORP
		STREET 2:		7961 SHAFFER PARKWAY SUITE 5
		CITY:			LITTLETON
		STATE:			CO
		ZIP:			80127
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2015-07-28</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000783324</issuerCik>
        <issuerName>VISTA GOLD CORP</issuerName>
        <issuerTradingSymbol>VGZ</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001238277</rptOwnerCik>
            <rptOwnerName>OGRYZLO C THOMAS</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O VISTA GOLD CORP.</rptOwnerStreet1>
            <rptOwnerStreet2>7961 SHAFFER PARKWAY, SUITE 5</rptOwnerStreet2>
            <rptOwnerCity>LITTLETON</rptOwnerCity>
            <rptOwnerState>CO</rptOwnerState>
            <rptOwnerZipCode>80127</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Restricted Stock Units</value>
                <footnoteId id="F2"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0.0</value>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2015-07-28</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>64000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2018-07-28</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Shares</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>64000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>64000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Each restricted stock unit represents a contingent right to receive one share of VGZ common stock (&quot;RSU&quot;).  Vesting of 30% of the RSUs will vest over a 36-month period (10% at 12 months, 10% at 24 months and 10% at 36 months), subject to the reporting person's continuing service as a director of the Issuer.  Vesting of 30% of the RSUs will occur on 7/28/2016 based on the achievement of corporate goals and objectives for the year presently in progress.  Vesting of the remaining 40% of the RSUs will occur on 7/28/2017; vesting is contingent upon share price performance criteria for the Issuer's common shares during the 2-year vesting period.</footnote>
        <footnote id="F2">VESTING OF THE RSU GRANTS IS SUBJECT TO PERFORMANCE AND MARKET PRICE CRITERIA AND THE RSUs WILL NOT NECESSARILY VEST OR CONVERT INTO NON-DERIVATIVE SECURITIES TO BE BENEFICIALLY OWNED BY THE REPORTING PERSON.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Connie Martinez, as attorney-in-fact for C. Thomas Ogryzlo</signatureName>
        <signatureDate>2015-07-30</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
