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                                                                    EXHIBIT 23.3


                       CONSENT OF DELOITTE & TOUCHE LLP


We consent to the incorporation by reference in this Registration Statement of
Synopsys, Inc. on Form S-8 of our report dated October 11, 1996 (relating to
the consolidated financial statements of EPIC Design Technology, Inc. not
presented separately herein), appearing in and incorporated by reference in the
Annual Report on Form 10-K of Synopsys, Inc. for the year ended September 30,
1997.


/s/ Deloitte & Touche LLP

DELOITTE & TOUCHE LLP



San Jose, California
December 10, 1997