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Surname ជួន (ជួន , Chuon ) , around the world, is a common last name. The surname ជួន is characteristic of South-eastern Asia, particularly Cambodia, where it is a common surname, Malaysia, where it is quite a rare surname, and Thailand, where it is a rare surname. In absolute terms, it is commonest in Cambodia, Malaysia, and the United States. Much less frequently, ជួន is the forename as well as the last name.