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Cognomen Koyugöz (Koyugöz ) , in the world, is a very rare last name. The cognomen Koyugöz is habitual in Turkey, where it is a very rare surname, and Germany.
Koyugoez
Elif, Murat, Semih, Hasan, Uğur, Coskun, Kadi R, Ferhat, and Elyanora