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Surname Deyong (德勇 , 德永 , 得勇 ) , throughout the world, is a common last name. The cognomen Deyong is habitual in China, where it is a rare surname, the United Kingdom, where it is a very rare surname, and Canada. Measured by absolute frequency, it most frequently occurs in China, the United States, and the United Kingdom. More prevalently, Deyong is the forename as well as the last name.