Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002            Exhibit 32.1

In connection with the filing of the Annual Report on Form 10-K for the year ended December 31, 2007 (the “Report”) by Pacific Capital Bancorp (“Registrant”), the undersigned hereby certify that:

1. The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended, and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of Registrant.

Date:    February 29, 2008	/s/ George S. Leis
	George S. Leis
	President &   Chief Executive Officer
Date:    February 29, 2008	/s/ Bradley S. Cowie
	Bradley S. Cowie
	Senior Vice President &   Chief Risk Officer and   Interim Chief Financial Officer