Cognomen Сеонг (Seong 
, Сеонг 
) , around the world, is a common last name. The surname Сеонг is characteristic of Malaysia, where it is a common surname, Macao, where it is quite a rare surname, and Taiwan. Not in comparison with a country's population, it most frequently occurs in Malaysia, China, and Taiwan. Much less frequently, Сеонг is the forename as well as the last name.