Last name Гиана (Giana 
, Гиана 
) , in the world, is quite a rare surname. The cognomen Гиана is habitual in Gambia, where it is quite a rare surname, Italy, and Argentina, where it is a rare surname. In absolute terms, it most frequently occurs in Indonesia, Italy, and Argentina. Likewise, Гиана is the forename as well as the last name.