-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 Qs+6uQCubAaPMZGBSTNjvzI45qL2Cy2BMJ2Npr7jQJm3TS1BzdxqPKSIItTMi6NO
 c7kT6o1ZWGYEI8iCc3Thwg==

<SEC-DOCUMENT>0001127602-08-010552.txt : 20081203
<SEC-HEADER>0001127602-08-010552.hdr.sgml : 20081203
<ACCEPTANCE-DATETIME>20081203175319
ACCESSION NUMBER:		0001127602-08-010552
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20081118
FILED AS OF DATE:		20081203
DATE AS OF CHANGE:		20081203

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			DILLON ADRIAN T
		CENTRAL INDEX KEY:			0001163402

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-15405
		FILM NUMBER:		081228357

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		4083458647

	MAIL ADDRESS:	
		STREET 1:		5301 STEVENS CREEK BLVD
		STREET 2:		MS 1A-LC
		CITY:			SANTA CLARA
		STATE:			CA
		ZIP:			95051

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AGILENT TECHNOLOGIES INC
		CENTRAL INDEX KEY:			0001090872
		STANDARD INDUSTRIAL CLASSIFICATION:	INSTRUMENTS FOR MEAS & TESTING OF ELECTRICITY & ELEC SIGNALS [3825]
		IRS NUMBER:				770518772
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1031

	BUSINESS ADDRESS:	
		STREET 1:		5301 STEVENS CREEK BLVD
		CITY:			SANTA CLARA
		STATE:			CA
		ZIP:			95051
		BUSINESS PHONE:		408-345-8647

	MAIL ADDRESS:	
		STREET 1:		5301 STEVENS CREEK BLVD, MS 1A-LC
		STREET 2:		P.O. BOX 58059
		CITY:			SANTA CLARA
		STATE:			CA
		ZIP:			95052-8059

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	HP MEASUREMENT INC
		DATE OF NAME CHANGE:	19990716
</SEC-HEADER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>form4a.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2008-11-18</periodOfReport>

    <dateOfOriginalSubmission>2008-11-20</dateOfOriginalSubmission>

    <issuer>
        <issuerCik>0001090872</issuerCik>
        <issuerName>AGILENT TECHNOLOGIES INC</issuerName>
        <issuerTradingSymbol>A</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001163402</rptOwnerCik>
            <rptOwnerName>DILLON ADRIAN T</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>5301 STEVENS CREEK BLVD, MS 1A-LC</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SANTA CLARA</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>95051</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isOfficer>1</isOfficer>
            <officerTitle>EVP, Finance &amp; Admin., CFO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2008-11-18</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>18692</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>19.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>213673.7</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The reporting person's Form 4, dated November 20, 2008, reported 20,343 shares withheld for tax liability on November 18, 2008.  The actual number of shares withheld was 18,692.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Marie Oh Huber, attorney-in-fact for Mr. Dillon</signatureName>
        <signatureDate>2008-12-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----