<SEC-DOCUMENT>0001179110-17-000710.txt : 20170106
<SEC-HEADER>0001179110-17-000710.hdr.sgml : 20170106
<ACCEPTANCE-DATETIME>20170106175009
ACCESSION NUMBER:		0001179110-17-000710
CONFORMED SUBMISSION TYPE:	5
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20161231
FILED AS OF DATE:		20170106
DATE AS OF CHANGE:		20170106

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BENCHMARK ELECTRONICS INC
		CENTRAL INDEX KEY:			0000863436
		STANDARD INDUSTRIAL CLASSIFICATION:	PRINTED CIRCUIT BOARDS [3672]
		IRS NUMBER:				742211011
		STATE OF INCORPORATION:			TX
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		3000 TECHNOLOGY DRIVE
		CITY:			ANGLETON
		STATE:			TX
		ZIP:			77515
		BUSINESS PHONE:		9798496550

	MAIL ADDRESS:	
		STREET 1:		3000 TECHNOLOGY DR
		CITY:			ANGLETON
		STATE:			TX
		ZIP:			77515

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			PETERSON SCOTT R
		CENTRAL INDEX KEY:			0001267211

	FILING VALUES:
		FORM TYPE:		5
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-10560
		FILM NUMBER:		17515321

	MAIL ADDRESS:	
		STREET 1:		3000 TECHNOLOGY DRIVE
		CITY:			ANGLETON
		STATE:			TX
		ZIP:			77515
</SEC-HEADER>
<DOCUMENT>
<TYPE>5
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>FORM 5 -
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>5</documentType>

    <periodOfReport>2016-12-31</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <form3HoldingsReported>0</form3HoldingsReported>

    <form4TransactionsReported>0</form4TransactionsReported>

    <issuer>
        <issuerCik>0000863436</issuerCik>
        <issuerName>BENCHMARK ELECTRONICS INC</issuerName>
        <issuerTradingSymbol>BHE</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001267211</rptOwnerCik>
            <rptOwnerName>PETERSON SCOTT R</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>3000 TECHNOLOGY DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ANGLETON</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>77515</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>VP &amp; General Counsel</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common stock</value>
            </securityTitle>
            <transactionDate>
                <value>2016-11-29</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>5</transactionFormType>
                <transactionCode>G</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>275</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>11145</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">The Form 5 reports a charitable contribution of shares.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Scott R Peterson</signatureName>
        <signatureDate>2017-01-06</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
