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Family name Khien (Khien , Хиен , Khiển ) , across the world, is quite a rare surname. The cognomen Khien is characteristic of Malaysia, where it is quite a rare surname, Belarus, where it is a rare surname, and Vietnam. Not in comparison with a country's population, the name is most common in South-eastern Asia, particularly Malaysia, Vietnam, and Indonesia. Very seldom, Khien is the forename as well as the last name.