<SEC-DOCUMENT>0001179110-18-002937.txt : 20180227
<SEC-HEADER>0001179110-18-002937.hdr.sgml : 20180227
<ACCEPTANCE-DATETIME>20180227142528
ACCESSION NUMBER:		0001179110-18-002937
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20180220
FILED AS OF DATE:		20180227
DATE AS OF CHANGE:		20180227

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Lakkaraju Roop Kalyan
		CENTRAL INDEX KEY:			0001396867

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-10560
		FILM NUMBER:		18644423

	MAIL ADDRESS:	
		STREET 1:		900 CHESAPEAKE DR, 2ND FLOOR
		CITY:			REDWOOD CITY
		STATE:			CA
		ZIP:			94063

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:		4141 N. SCOTTSDALE ROAD
		STREET 2:		SUITE 301
		CITY:			SCOTTSDALE
		STATE:			AZ
		ZIP:			85251
		BUSINESS PHONE:		623-300-7000

	MAIL ADDRESS:	
		STREET 1:		4141 N. SCOTTSDALE ROAD
		STREET 2:		SUITE 301
		CITY:			SCOTTSDALE
		STATE:			AZ
		ZIP:			85251
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>FORM 4 -
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2018-02-20</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001396867</rptOwnerCik>
            <rptOwnerName>Lakkaraju Roop Kalyan</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>4141 N. SCOTTSDALE ROAD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SCOTTSDALE</rptOwnerCity>
            <rptOwnerState>AZ</rptOwnerState>
            <rptOwnerZipCode>85251</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>CFO</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Performance-based Restricted Stock Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2018-02-20</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>12230</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>12230</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>12230</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">This reflects the target number of performance-based restricted stock units awarded. Actual awards may vary from as low as zero to as high as 2.5 times the target. As soon as reasonably practicable following the end of the Performance Period (beginning January 1, 2018 and ending on December 31, 2020) and in no event later than March 15, 2021, the number of shares that may ultimately be earned will be determined and issued.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Roop K Lakkaraju</signatureName>
        <signatureDate>2018-02-27</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
