All over the world, زاي (Zei 
, زاي 
) is a common primarily male, but scarcely female first name. The given name زاي is habitual in Japan, where it is quite a common male name, Tunisia, where it is quite a rare feminine name, and Egypt, where it is quite a rare predominantly feminine, but very seldom masculine name. Much less frequently, زاي is the last name as well as the forename.