________________________________________________________________________________

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


                                    FORM 8-K


                                 CURRENT REPORT


     PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934


         DATE OF REPORT (DATE OF EARLIEST EVENT REPORTED): MARCH 5, 2008


                             UNIONBANCAL CORPORATION
             ______________________________________________________
             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)


        Delaware                     001-15081                   94-1234979
________________________      ________________________      ____________________
(State of Incorporation)      (Commission File Number)         (IRS Employer
tion No.)


                              400 California Street
                          San Francisco, CA 94104-1302
               ___________________________________________________
               (Address of principal executive offices) (Zip Code)


                               Tel. (415) 765-2969
               __________________________________________________
               Registrant's telephone number, including area code



Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions (see General Instruction A.2. below):

[ ] Written communications pursuant to Rule 425 under the Securities Act
    (17 CFR 230.425)

[ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act
    (17 CFR 240.14a-12)

[ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange
    Act (17 CFR 240.14d-2(b))

[ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange
    Act (17 CFR 240.13e-4(c))


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ITEM 5.02 DEPARTURE OF DIRECTORS OR CERTAIN OFFICERS; ELECTION OF DIRECTORS;
          APPOINTMENT OF CERTAIN OFFICERS; COMPENSATORY ARRANGEMENTS OF CERTAIN
          OFFICERS.


On March 5, 2008, Masashi Oka resigned as a Director of UnionBanCal Corporation
effective April 1, 2008. Mr. Oka will be returning to The Bank of
Tokyo-Mitsubishi UFJ, Ltd. for another assignment.































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                                   SIGNATURES


Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.


Dated:   March 5, 2008


                                       UNIONBANCAL CORPORATION


                                        By:  /s/ JOHN H. MCGUCKIN, JR.
                                             ________________________________
                                             John H. McGuckin, Jr.
                                             Senior Executive Vice President,
                                             General Counsel & Secretary
                                              (Duly Authorized Officer)























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