As filed with the Securities and Exchange Commission on August 7, 1998
Registration No. 333-



SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549


FORM S-8
REGISTRATION STATEMENT
UNDER
THE SECURITIES ACT OF 1933


CADENCE DESIGN SYSTEMS, INC.
(Exact name of registrant as specified in its charter)


         DELAWARE                                  77-0148231
(State of Incorporation)                  (I.R.S. Employer Identification No.)

                                 ----------------

                            CADENCE DESIGN SYSTEMS, INC.
                            2655 SEELY ROAD, BUILDING 5
                                 SAN JOSE, CA 95134
                                   (408) 943-1234

                     ------------------------------------------
                      (Address of principal executive offices)

                                 ----------------

1987 STOCK OPTION PLAN
(Full title of the plans)

R.L. SMITH MCKEITHEN, ESQ.
VICE PRESIDENT AND GENERAL COUNSEL
CADENCE DESIGN SYSTEMS, INC.
2655 SEELY ROAD, BUILDING 5
SAN JOSE, CA 95134
(408) 943-1234

(Name, address, including zip code, and telephone number, including area
code, of agent for service)


Copies to:

R.L. Smith McKeithen, Esq.                        Alan C. Mendelson, Esq.
Vice President and General Counsel                Cooley Godward LLP
Cadence Design Systems, Inc.                      Five Palo Alto Square
2655 Seely Road, Building 5                       3000 El Camino Real
San Jose, CA 95134                                Palo Alto, CA 94306
(408) 943-1234                                    (650) 843-5000

                                 -----------------

CALCULATION OF REGISTRATION FEE

-----------------------------------------------------------------------------------------
-----------------------------------------------------------------------------------------

                                  PROPOSED         PROPOSED
    TITLE OF                      MAXIMUM          MAXIMUM             AMOUNT OF
 SECURITIES TO   AMOUNT TO BE  OFFERING PRICE      AGGREGATE         REGISTRATION
 BE REGISTERED    REGISTERED    PER SHARE (1)   OFFERING PRICE (1)       FEE
----------------------------------------------------------------------------------------
Common Stock     10,000,000       $26.6875         $266,875,000         $78,728.13
(par value $.01)
----------------------------------------------------------------------------------------
----------------------------------------------------------------------------------------

(1) Estimated solely for the purpose of calculating the amount of the registration fee pursuant to Rule 457(c). The price per share and aggregate offering price are based upon the average of the high and low sales price of Registrant's Common Stock on August 5, 1998 as reported on the New York Stock Exchange.




INCORPORATION BY REFERENCE OF CONTENTS OF
REGISTRATION STATEMENTS ON FORM S-8 NOS. 33-34910; 33-43025;
33-48371 AND 33-53913

The contents of Registration Statements on Form S-8 Nos. 33-34910; 33-43025; 33-48371 and 33-53913 filed with the Securities and Exchange Commission on May 17, 1990; September 30, 1991; June 4, 1992 and May 31, 1994, respectively, are incorporated by reference herein.

EXHIBITS

EXHIBIT
NUMBER
-------
5                   Opinion of Cooley Godward LLP

23.1                Consent of Arthur Andersen LLP

23.2                Consent of Cooley Godward LLP is contained in Exhibit 5 to this
                    Registration Statement

24                  Power of Attorney is contained on the signature pages.

1

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, as amended, the Registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of San Jose, State of California, on July 31, 1998.

CADENCE DESIGN SYSTEMS, INC.

By:/s/ John R. Harding
   -------------------------------
       John R. Harding
       President and
       Chief Executive Officer

POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints John R. Harding, H. Raymond Bingham and R.L. Smith McKeithen, and each or any one of them, his or her true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for him or her and in his or her name, place and stead, in any and all capacities, to sign any and all amendments (including post-effective amendments) to this Registration Statement, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in connection therewith, as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents, or any of them, or their or his substitutes or substitute, may lawfully do or cause to be done by virtue hereof.

II-1


SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, as amended, the Registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of San Jose, State of California, on July 31, 1998.

CADENCE DESIGN SYSTEMS, INC.

By:/s/ John R. Harding
    -------------------------------
           John R. Harding
           President and
           Chief Executive Officer

POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints John R. Harding, H. Raymond Bingham and R.L. Smith McKeithen, and each or any one of them, his or her true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for him or her and in his or her name, place and stead, in any and all capacities, to sign any and all amendments (including post-effective amendments) to this Registration Statement, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in connection therewith, as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents, or any of them, or their or his substitutes or substitute, may lawfully do or cause to be done by virtue hereof.

II-1


Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has been signed by the following persons in the capacities and on the dates indicated.

    SIGNATURE                               TITLE                     DATE
/s/ John R. Harding                      President, Chief          July 31, 1998
------------------------------------     Executive Officer and
   (John R. Harding)                     Director (Principal
                                         Executive
                                         Officer)


/s/ H. Raymond Bingham                   Executive Vice            July 31, 1998
------------------------------------     President,
   (H. Raymond Bingham)                  Chief Financial
                                         Officer and
                                         Director
                                         (Principal Financial
                                         Officer)


/s/ William Porter                       Vice President,           July 31, 1998
------------------------------------     Corporate
   (William Porter)                      Controller and
                                         Assistant Secretary
                                         (Principal Accounting
                                         Officer)


/s/ Carol A. Bartz
------------------------------------     Director                  July 31, 1998
   (Carol A. Bartz)

/s/ Leonard Y. W. Liu
------------------------------------     Director                  July 31, 1998
   (Leonard Y. W. Liu)

/s/ Donald L. Lucas
------------------------------------     Director and Chairman     July 31, 1998
   (Donald L. Lucas)

/s/ Alberto  Sangiovanni-Vincentelli     Director                  July 31, 1998
------------------------------------
   (Alberto Sangiovanni-Vincentelli)

/s/ George M. Scalise
------------------------------------     Director                  July 31, 1998
   (George M. Scalise)


/s/ John B. Shoven
------------------------------------     Director                  July 31, 1998
   (John B. Shoven)

II-2


Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has been signed by the following persons in the capacities and on the dates indicated.

    SIGNATURE                               TITLE                     DATE
                                         President, Chief          July 31, 1998
------------------------------------     Executive Officer and
   (John R. Harding)                     Director (Principal
                                         Executive
                                         Officer)


                                         Executive Vice            July 31, 1998
------------------------------------     President,
   (H. Raymond Bingham)                  Chief Financial
                                         Officer and
                                         Director
                                         (Principal Financial
                                         Officer)


                                         Vice President,           July 31, 1998
------------------------------------     Corporate
   (William Porter)                      Controller and
                                         Assistant Secretary
                                         (Principal Accounting
                                         Officer)



------------------------------------     Director                  July 31, 1998
   (Carol A. Bartz)


------------------------------------     Director                  July 31, 1998
   (Leonard Y. W. Liu)


------------------------------------     Director and Chairman     July 31, 1998
   (Donald L. Lucas)


------------------------------------     Director                  July 31, 1998
   (Alberto Sangiovanni-Vincentelli)


------------------------------------     Director                  July 31, 1998
   (George M. Scalise)



------------------------------------     Director                  July 31, 1998
   (John B. Shoven)

II-2


EXHIBIT INDEX

EXHIBIT
NUMBER       DESCRIPTION
 5       Opinion of Cooley Godward LLP

23.1     Consent of Arthur Andersen LLP

23.2     Consent of Cooley Godward LLP is contained in
         Exhibit 5 to this Registration Statement

24       Power of Attorney is contained on the signature
         pages.


EXHIBIT 5

August 5, 1998

Cadence Design Systems, Inc.
2655 Seely Road
Building 5
San Jose, CA 95134

Ladies and Gentlemen:

You have requested our opinion with respect to certain matters in connection with the filing by Cadence Design Systems, Inc. (the "Company") of a Registration Statement on Form S-8 (the "Registration Statement") with the Securities and Exchange Commission covering the offering of up to 10,000,000 shares of the Company's Common Stock, $.01 par value, (the "Shares") pursuant to its 1987 Stock Option Plan (the "Plan").

In connection with this opinion, we have examined the Registration Statement and related Prospectus, your Certificate of Incorporation and By-laws, as amended, and such other documents, records, certificates, memoranda and other instruments as we deem necessary as a basis for this opinion. We have assumed the genuineness and authenticity of all documents submitted to us as originals, the conformity to originals of all documents submitted to us as copies thereof, and the due execution and delivery of all documents where due execution and delivery are a prerequisite to the effectiveness thereof.

On the basis of the foregoing, and in reliance thereon, we are of the opinion that the Shares, when sold and issued in accordance with the Plan, the Registration Statement and related Prospectus, will be validly issued, fully paid, and nonassessable.

We consent to the filing of this opinion as an exhibit to the Registration Statement.

Very truly yours,

Cooley Godward LLP

By:  /s/ Julia L. Davidson
    -----------------------------
         Julia L. Davidson


EXHIBIT 23.1

CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS

As independent public accountants, we hereby consent to the incorporation by reference in this registration statement of our report dated January 23, 1998 included in Cadence Design Systems, Inc.'s Form 10-K for the year ended January 3, 1998.

                                   /s/  Arthur Andersen LLP

                                   ARTHUR ANDERSEN LLP



San Jose, California
August 7, 1998