In all the world, 加伊 (Gaj 
, 加伊 
) is a common dominantly boy's, but seldom female given name. The first name 加伊 is habitual in Slovenia, where it is quite a rare boy's name, India, where it is a rare largely boy's, but infrequently girly name, and Croatia, where it is a rare masculine name. Measured by absolute frequency, it is the most numerous in India, Pakistan, and Slovenia. Much less frequently, 加伊 is the last name as well as the forename.