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Surname Coşkun (Coşkun , Джошкун ) , across the world, is a widespread last name. The family name Coşkun is habitual in Western Asia, particularly Turkey, where it is a common surname, Cyprus, where it is quite a rare surname, and Qatar, where it is a rare surname. Not in comparison with a country's population, it is commonest in Turkey, Russia, and Iraq. Very seldom, Coşkun is the forename as well as the last name.