PROSPECTUS SUPPLEMENT NO. 9 TO PROSPECTUS DATED AUGUST 27, 2003
of

COMPUTER ASSOCIATES INTERNATIONAL, INC.
Relating to
Resales by Selling Securityholders
of
5% Convertible Senior Notes
and Shares of Common Stock Issuable upon Conversion of the Senior Notes

        This Prospectus Supplement supplements the Prospectus dated January 15, 2003 (the "Prospectus"). This Prospectus Supplement should be read in conjunction with the Prospectus, which is to be delivered by selling securityholders to prospective purchasers along with this Prospectus Supplement. The information in the following table supersedes in part and supplements the information in the relevant section in the Prospectus.

Selling Holder
   Aggregate Principal
Amount of Notes
Beneficially
Owned and Offered
   Shares of
Common
Stock
Beneficially Owned
   Shares of
Common
Stock
Offered
   Shares of
Common
Stock Beneficially
Owned
After Completion
of the Offering
Clinton Riverside Convertible Portfolio Limited (1)   5,275,000   216,721   216,721   0
(1)
Mike Vacca exercises voting and investment control over any shares of Common Stock issuable upon conversion of the Notes owned by this selling holder.

Prospectus Supplement dated August 27, 2003