In the world, Дой (Doy 
, Дой 
) is quite a rare principally boy's, but very seldom feminine given name. The forename Дой is characteristic of Ireland, where it is quite a rare masculine name, Philippines, where it is a rare predominantly male, but scarcely feminine name, and Hong Kong, where it is a rare boy's name. Measured by absolute frequency, it is the most numerous in Indonesia, Philippines, and the United States. Also, Дой is the last name as well as the forename.