UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C.  20549

                                    Form 13F

                              Form 13F COVER PAGE

Report for the Calendar Year or Quarter Ended: September 30, 2002

Check here if Amendment [  ]; Amendment Number:
This Amendment (Check only one.): [  ] is a restatement.
                                  [  ] adds new holdings entries.

Institutional Investment Manager Filing this Report:

Name:    Union Bank of California, N.A.
Address: 400 California Street
         MC 1-475-12
         San Francisco, CA  91104

13F File Number:  28-04661

The institutional investment manager filing this report and the person by whom
it is signed hereby represent that the person signing the report is authorized
to submit it, that all information contained herein is true, correct and
complete, and that it is understood that all required items, statements,
schedules, lists, and tables, are considered integral parts of this form.

Person Signing this Report on Behalf of Reporting Manager:

Name:      Lynn S. Iwaki
Title:     Vice President
Phone:     619-230-4616

Signature, Place, and Date of Signing:

     /s/  Lynn S. Iwaki     San Diego, CA     October 21, 2002


Report Type (Check only one.):

[  ]         13F HOLDINGS REPORT.

[ X]         13F NOTICE.

[  ]         13F COMBINATION REPORT.


List of Other Managers Reporting for this Manager:

       Form 13F File Number          Name

       28-04665                      UnionBanCal Corporation