Last name Sangyong (상용 
, Sangyong 
) , in all the world, is a rare cognomen. The cognomen Sangyong is characteristic of South Korea, where it is quite a rare surname, Thailand, where it is a very rare surname, and Malaysia. Measured by absolute frequency, it most frequently occurs in South Korea, China, and Thailand. More frequently, Sangyong is the forename as well as the last name.