Family name Tangyong (堂勇 
, 唐勇 , Tangyong 
) , across the world, is a rare surname. The family name Tangyong is habitual in Indonesia, where it is a very rare surname, China, and Malaysia, where it is an extremely rare surname. Not in comparison with a country's population, it is the most numerous in China, Indonesia, and Thailand. More frequently, Tangyong is the forename as well as the last name.