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                                  UNITED STATES
                       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): February 15, 2005

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                                   ANSYS. INC.
             (Exact Name of Registrant as Specified in its Charter)

             Delaware                     0-20853              04-3219960
 (State or Other Jurisdiction of  (Commission File Number)  (I.R.S. Employer
 Incorporation or Organization)                             Identification No.)

            275 Technology Drive, Canonsburg, PA                  15317
          (Address of Principal Executive Offices)             (Zip Code)

       (Registrant's Telephone Number, Including Area Code) (724) 746-3304

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ITEM 2.02  REGULATION FD DISCLOSURE

        The Information contained in this Item of this Current Report on Form
8-K is being furnished pursuant to "Item 2.02. Results of Operations and
Financial Condition" of Form 8-K.

        The information in this Current Report is being furnished and shall not
be deemed "filed" for the purposes of Section 18 of the Securities Exchange Act
of 1934, as amended, or otherwise subject to the liabilities of such Section.
The information in this Current Report shall not be incorporated by reference
into any registration statement or other document pursuant to the Securities Act
of 1933, except as shall be expressly set forth by specific reference in such
filing.

        On February 15. 2005, ANSYS, Inc. issued an earnings release announcing
its financial results for the fourth quarter ended December 31, 2004. A copy of
the earnings release is attached as Exhibit 99.1

ITEM 9.01  FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND EXHIBITS

       (c)

           Exhibits

           EXHIBIT
           NUMBER      DESCRIPTION
           -------     -------------------------------------------------------
           99.1        Press Release of the Registrant dated February 15, 2005



                                    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.

                               ANSYS, INC.
                               (Registrant)


Date:  February 15, 2005       By: /s/ MARIA T. SHIELDS
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                                   Maria T. Shields - Chief Financial Officer,
                                   VP of Finance and Administration
                                   (Ms. Shields is the  Principal Financial and
                                   Accounting Officer and has been duly
                                   authorized to sign on behalf of the
                                   Registrant)