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In all the world, Gunaydin (Gunaydin , Gunaydın , Гунаыдин ) is a very rare predominantly male, but scarcely female given name. The forename Gunaydin is habitual in Bulgaria, where it is a rare boy's name, and Turkey, where it is a very rare gender-neutral name. Much more frequently, Gunaydin is the last name as well as the forename.