In this study, the measured wave data for year 2010 at 3 hour time step for six sites in the Caspian sea, Persian Gulf and Oman Sea of Iran have been statistically analysed to determine the wave power potential of Iranian coastlines. The statistical attitudes allows to estimate the significant weight height (Hs), peak wave energy period (Tp), and the wave energy flux for unit of crest length. This preliminary research aims to assess the nearshore wave energy potential and ultimately identify the best Wave Energy Converters (WECs) technology for the peculiar wave climate of the studied areas. Results show that wave power in Qeshm, Chabahar and Anzali presents the best potential and thus are the most indicated to be studied further the installation of Wave Energy Converters.