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Surname Demirhan (Demirhan , Демирхан ) , in the entire world, is quite a rare last name. The cognomen Demirhan is habitual in Turkey, where it is quite a rare surname, North Macedonia, and Denmark, where it is a rare surname. Measured by absolute frequency, it most frequently occurs in Turkey, Germany, and France. Much less frequently, Demirhan is the forename as well as the last name.