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Family name Хуен (Khuyen , Huen , Xuen ) , in the world, is quite a common cognomen. The cognomen Хуен is habitual in Cayman Islands, where it is quite a common surname, Hong Kong, and Malaysia, where it is quite a rare surname. In absolute terms, it is the most numerous in Malaysia, Hong Kong, and Vietnam. Very seldom, Хуен is the forename as well as the last name.