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<SEC-DOCUMENT>0001479936-11-000026.txt : 20110201
<SEC-HEADER>0001479936-11-000026.hdr.sgml : 20110201
<ACCEPTANCE-DATETIME>20110201171759
ACCESSION NUMBER:		0001479936-11-000026
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20110128
FILED AS OF DATE:		20110201
DATE AS OF CHANGE:		20110201

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			HOTCHKISS JEFFREY R
		CENTRAL INDEX KEY:			0001275985

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-06462
		FILM NUMBER:		11563983

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TERADYNE, INC
		CENTRAL INDEX KEY:			0000097210
		STANDARD INDUSTRIAL CLASSIFICATION:	INSTRUMENTS FOR MEAS & TESTING OF ELECTRICITY & ELEC SIGNALS [3825]
		IRS NUMBER:				042272148
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		600 RIVERPARK DRIVE
		CITY:			NORTH READING
		STATE:			MA
		ZIP:			01864
		BUSINESS PHONE:		978-370-2700

	MAIL ADDRESS:	
		STREET 1:		600 RIVERPARK DRIVE
		CITY:			NORTH READING
		STATE:			MA
		ZIP:			01864

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	TERADYNE INC
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
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            <conversionOrExercisePrice>
                <value>0</value>
                <footnoteId id="F10"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2011-01-28</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>11091</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                    <footnoteId id="F11"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F11"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F11"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>11091</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>11091</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Non-Qualified Stock Option (Right to Buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>16.23</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2011-01-28</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>13353</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>16.23</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2012-01-28</value>
                <footnoteId id="F12"/>
            </exerciseDate>
            <expirationDate>
                <value>2018-01-28</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>13353</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>13353</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The reported price is based on a weighted average of multiple same-day transactions with prices ranging from $16.26 to $16.395 per share.  Full information regarding the number of shares sold at each separate price is available to the Securities and Exchange Commission staff, the Issuer or any security holder of the Issuer upon request.</footnote>
        <footnote id="F2">Shares/units withheld but not issued to satisfy certain tax withholding obligations.</footnote>
        <footnote id="F3">The reported price is based on a weighted average of multiple same-day transactions with prices ranging from $16.20 to $16.29 per share.  Full information regarding the number of shares sold at each separate price is available to the Securities and Exchange Commission staff, the Issuer or any security holder of the Issuer upon request.</footnote>
        <footnote id="F4">The reported price is based on a weighted average of multiple same-day transactions with prices ranging from $16.26 to $16.33 per share.  Full information regarding the number of shares sold at each separate price is available to the Securities and Exchange Commission staff, the Issuer or any security holder of the Issuer upon request.</footnote>
        <footnote id="F5">Indicates conversion upon vesting of 25% of the time-based Restricted Stock Units (RSU's) granted on January 29, 2010.  The remaining portion will vest in three equal installments annually on the anniversary of the grant.</footnote>
        <footnote id="F6">Indicates conversion upon vesting of 25% of the performance-based Restricted Stock Units (RSU's) granted on January 29, 2010.  The remaining portion will vest in three equal installments annually on the anniversary of the grant.</footnote>
        <footnote id="F7">Indicates conversion upon vesting of 25% of the time-based Restricted Stock Units (RSU's) granted on January 30, 2009.  The remaining portion will vest in two equal installments annually on the anniversary of the grant.</footnote>
        <footnote id="F8">This option is granted under Teradyne's 2006 Equity and Cash Compensation Incentive Plan and is exercisable at the rate of 25% per year, commencing on the date of the first anniversary of the grant, January 30, 2010.</footnote>
        <footnote id="F9">This option is granted under Teradyne's 2006 Equity and Cash Compensation Incentive Plan and is exercisable at the rate of 25% per year, commencing on the date of the first anniversary of the grant, January 29, 2011.</footnote>
        <footnote id="F10">Each RSU represents the right to receive one share of Teradyne, Inc. common stock.</footnote>
        <footnote id="F11">These RSU's were issued under Teradyne's 2006 Equity and Cash Compensation Incentive Plan, are time-based, and will vest in four equal installments beginning on January 28, 2012.</footnote>
        <footnote id="F12">This option is granted under Teradyne's 2006 Equity and Cash Compensation Incentive Plan and is exercisable at the rate of 25% per year, commencing on the date of the first anniversary of the grant, January 28, 2012.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Ryan Driscoll, Deputy General Counsel, by power of attorney</signatureName>
        <signatureDate>2011-02-01</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>attach_1.htm
<TEXT>
<HTML><BODY><PRE>Consent







Date:  January 9, 2004







TO WHOM IT MAY CONCERN:



I hereby authorize Teradyne, Inc.'s Chief Financial Officer

General Counsel, Corporate Counsel, Secretary, Assistant

Secretary or Corporate Controller, or any of their respective

Designees to execute and cause to be filed, on my behalf, (i)

Form 144 or any other documents to be filed pursuant to Rule

144 of the Securities Act of 1933 and any regulations

thereunder with respect to securities of Teradyne, Inc. and

(ii) Form 4 and/or Form 5, including amendments thereto or

other document required to be filed pursuant to Section 16(a)

of the Securities and Exchange Act of 1934 and any

regulations thereunder with respect to securities of

Teradyne, Inc.



This authorization shall continue until terminated in writing

by me.





Signature:/s/Jeffrey R. Hotchkiss     Date Signed:  January 9, 2004



Name Printed:  Jeffrey R. Hotchkiss</PRE></BODY></HTML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----
