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Family name Sudong (苏东 , 素东 , 수동 ) , in the world, is quite a rare cognomen. The last name Sudong is habitual in China, where it is a rare surname, Philippines, where it is a very rare surname, and Malaysia. Measured by absolute frequency, it is commonest in China, Philippines, and Thailand. More frequently, Sudong is the forename as well as the last name.