Surname Koyshybaev (Койшыбаев 
, Koyshybaev, Коишыбаев ) , globally, is quite a rare cognomen. The surname Koyshybaev is characteristic of Kazakhstan, where it is quite a rare surname, Azerbaijan, and Kyrgyzstan, 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, Koyshybaev is the forename as well as the last name.