UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

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): March 9, 2005

CADENCE DESIGN SYSTEMS, INC.

(Exact name of registrant as specified in charter)

Delaware
(State or other jurisdiction
of incorporation) 1-10606
(Commission file number) 77-0148231
(I.R.S. Employer
Identification Number)

2655 Seely Avenue, Building 5
San Jose, California
(Address of principal executive offices) 95134
(Zip Code)

Registrant’s telephone number, including area code: (408) 943-1234

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

TABLE OF CONTENTS

	Item 5.02. Departure of Directors or Principal Officers; Election of Directors; Appointment of Principal Officers.
SIGNATURES

Item 5.02. Departure of Directors or Principal Officers; Election of Directors; Appointment of Principal Officers.

     (b)  On March 10, 2005, Susan L. Bostrom resigned from the Board of Directors of Cadence Design Systems, Inc.

SIGNATURES

     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.

Dated: March 11, 2005

CADENCE DESIGN SYSTEMS, INC.
By:	/s/ R.L. Smith McKeithen
	R.L. Smith McKeithen
	Senior Vice President, General Counsel and Secretary