Family name Chanyong (찬용 
, Chanyong 
, จรรยงค์ ) , in all the world, is a rare last name. The cognomen Chanyong is characteristic of South Korea, where it is a rare surname, Thailand, and Malaysia, where it is a very rare surname. Not in comparison with a country's population, it is commonest in Thailand, South Korea, and China. More prevalently, Chanyong is the forename as well as the last name.