UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 13F-NT FORM 13F COVER PAGE Report for the Calendar Year or Quarter Ended: 03/31/2006 Check here if Amendment [ ] Amendment Number: This Amendment [ ] is a restatement Institutional Investment Manager Filing this Report: Name: BANK OF HAWAII CORP Address: 130 MERCHANT ST. HONOLULU, HI 96813 13F File Number: 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: RICHARD C. KEENE Title: VICE CHAIRMAN AND CHIEF FINANCIAL OFFICER Phone: 1-888-643-3888 Signature, Place, and Date of Signing: RICHARD C. KEENE HONOLULU, HI 5/11/2006 Report Type (Check only one) [ ] 13F HOLDINGS REPORT [X] 13F NOTICE REPORT [ ] 13F COMBINATION REPORT List of Other Managers Reporting for this Manager: [If there are no entries on this list, omit this section.] Form 13F File Number Name 28-00416 BANK OF HAWAII