Family name Usyn (Усин 
, Usyn 
) , in the entire world, is a rare cognomen. The surname Usyn is characteristic of Kazakhstan, where it is quite a rare surname, Azerbaijan, and Ukraine, where it is a very rare surname. Not in comparison with a country's population, it most frequently occurs in Kazakhstan, Azerbaijan, and Russia. Very seldom, Usyn is the forename as well as the last name.