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Cognomen Hean (Hean , 希恩 , 合安 ) , across the world, is a common last name. The last name Hean is characteristic of South-eastern Asia, particularly Malaysia, where it is quite a common surname, Singapore, where it is a rare surname, and Cambodia. Measured by absolute frequency, it most frequently occurs in Malaysia, China, and Indonesia. Very seldom, Hean is the forename as well as the last name.