In the entire world, アイセイ (Isay 
, アイセイ) is quite a rare dominantly male, but infrequently female given name. The forename アイセイ is characteristic of 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 masculine name. Measured by absolute frequency, it is the most numerous in Mexico, Israel, and Philippines. Likewise, アイセイ is the last name as well as the forename.