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Family name Koshanov (Кошанов , Koshanov , Қошанов) , in the world, is quite a rare last name. The last name Koshanov is characteristic of Kazakhstan, where it is quite a rare surname, Azerbaijan, and Kyrgyzstan, where it is a rare surname. In absolute terms, it most frequently occurs in Kazakhstan, Russia, and Azerbaijan. Much less frequently, Koshanov is the forename as well as the last name.