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Last name Yalçin (Yalçin ) , across the world, is a widespread surname. The last name Yalçin is habitual in Turkey, where it is a common surname, Cyprus, where it is quite a rare surname, and Belgium, where it is a rare surname. Not in comparison with a country's population, it is the most numerous in Turkey, China, and Saudi Arabia. Much less frequently, Yalçin is the forename as well as the last name.