EXHIBIT 23.3


                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS

Board of Directors
Avant! Corporation:

We hereby consent to the use of our reports dated February 12, 2001, except as
to Note 16, which is as of March 23, 2001 included in Amendment No. 2 to the
Registration Statement (333-67184) on Form S-4 of Synopsys, Inc. relating to
the consolidated balance sheets of Avant! Corporation, Inc. and subsidiaries as
of December 31, 2000 and 1999, and the related consolidated statements of
earnings, stockholders' equity and comprehensive income, and cash flows for
each of the years in the three-year period ended December 31, 2000, and the
related financial statement schedule which reports appear in the December 31,
2000 annual report on Form 10-K of Avant! Corporation.


We also consent to the reference to us under the caption "Experts".

/s/ KPMG LLP

KPMG LLP

Mountain View, California

February 7, 2002