Worldwide, איסאי (Isay 
, איסאי 
) is quite a rare largely male, but infrequently female first name. The forename איסאי is habitual in Israel, where it is quite a rare male name, United Arab Emirates, where it is a rare feminine name, and Mexico, where it is a rare male name. Measured by absolute frequency, it most frequently occurs in Mexico, Israel, and Philippines. Likewise, איסאי is the last name as well as the forename.