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Family name Kheun (คุณ , Kheun ) , in the world, is a rare surname. The family name Kheun is habitual in South-eastern Asia, particularly Malaysia, where it is quite a rare surname, Thailand, where it is a very rare surname, and Cambodia. In absolute terms, it is commonest in Malaysia, Thailand, and China. Likewise, Kheun is the forename as well as the last name.