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.