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                                                                   Exhibit 23.1





                        Independent Auditor's Consent



The Board of Directors and Stockholders
Mentor Graphics Corporation


We consent to the incorporation by reference herein of our reports dated
January 23, 2003, relating to the consolidated balance sheets of Mentor
Graphics Corporation and subsidiaries as of December 31, 2002 and 2001, and the
related consolidated statements of operations, stockholders' equity and cash
flows and related consolidated financial statement schedule for each of the
years in the three-year period ended December 31, 2002, which reports appear in
the December 31, 2002 annual report on Form 10-K of Mentor Graphics
Corporation, and to the reference to our Firm under the heading "Experts" in
the prospectus.


                                                /s/ KPMG LLP



Portland, Oregon
July 24, 2003