Family name Какин (Kakin 
, Какин 
) , throughout the world, is a rare last name. The family name Какин is habitual in Kyrgyzstan, where it is quite a rare surname, Hong Kong, where it is a rare surname, and Kazakhstan, where it is a very rare surname. In absolute terms, it most frequently occurs in Kyrgyzstan, India, and Hong Kong. More prevalently, Какин is the forename as well as the last name.