SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549


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                                    FORM 8-K

                                 CURRENT REPORT
                       PURSUANT TO SECTION 13 OR 15(d) OF
                       THE SECURITIES EXCHANGE ACT OF 1934

        Date of Report (Date of earliest event reported): April 22, 2003

                           ART TECHNOLOGY GROUP, INC.
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               (Exact name of registrant as specified in charter)

           Delaware                   000-26679             04-3141918
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(State or other jurisdiction of      (Commission           (IRS Employer
         incorporation              File Number)        Identification No.)


         25 First Street, Cambridge, Massachusetts             02141
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         (Address of principal executive offices)           (Zip Code)


Registrant's telephone number, including area code: 617-386-1000

                                 Not Applicable
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          (Former name or former address, if changed since last report)






Item 9. Regulation FD Disclosure (Information furnished pursuant to Item 12,
"Disclosure of Results of Operations and Financial Condition").

     On April 22, 2003, Art Technology Group, Inc. announced its financial
results for the quarter ended March 31, 2003. The full text of the press release
issued in connection with the announcement is attached as Exhibit 99.1 to this
Current Report on Form 8-K.

     In accordance with the procedural guidance in SEC Release No. 33-8216, the
information in this Form 8-K and the Exhibit attached hereto is being furnished
under "Item 9. Regulation FD Disclosure" rather than under "Item 12. Disclosure
of Results of Operations and Financial Condition." The information shall not be
deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934
(the "Exchange Act") or otherwise subject to the liabilities of that section,
nor shall it be deemed incorporated by reference in any filing under the
Securities Act of 1933 or the Exchange Act, except as expressly set forth by
specific reference in such a filing.





                                    SIGNATURE

     Pursuant to the requirements of the Securities Exchange Act of 1934, the
Registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.



Date:  April 22, 2003             ART TECHNOLOGY GROUP, INC.

                                   By:  /S/ Edward Terino
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                                        Edward Terino, Senior Vice President
                                        and Chief Financial Officer




                                  EXHIBIT INDEX

Exhibit No.                       Description
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99.1                              Press release dated April 22, 2003