INTRODUCTION: RELIABLE WAVE INFORMATION IS ESSENTIAL TO THE DESIGN OF ANY COASTAL FACILITY AND TO THE ASSESSMENT OF COASTAL PROCESSES, SUCH AS SEDIMENT TRANSPORT. A DETAILED INVESTIGATION OF THE WAVE CLIMATE ON THE OMAN SEA COASTLINE OF IRAN HAS BEEN RECENTLY CARRIED OUT IN SUPPORT OF A COMPREHENSIVE STUDY OF COASTAL ZONE PROCESSES (PROJECT MONITOR SB& B BY PMO). THE OMAN SEA COAST IS SUBJECT TO A COMPLEX WAVE CLIMATE WITH THREE DISTINCT COMPONENTS: (1) MONSOON WAVES GENERATED DURING MONSOON SEASON (JUNE TO SEPTEMBER) OFF THE SOUTHERN COASTLINE OF ARABIAN PENINSULA IN THE INDIAN OCEAN AND APPROACH FROM A SOUTHERLY DIRECTION, (2) SEAS THAT ARE GENERATED IN THE OMAN SEA DURING WINTER SEASON AND APPROACH FROM A WESTERLY TO SOUTHWESTERLY DIRECTIONS; AND (3) LONGPERIOD SWELLS THAT ARE GENERATED IN THE INDIAN OCEAN AND APPROACH FROM SOUTHERLY TO SOUTHEASTERLY DIRECTIONS.