Surname ตันหยง (Tanyong 
, ตันหยง , Tanyoung 
) , around the world, is a rare family name. The surname ตันหยง is characteristic of South-eastern Asia, particularly Thailand, where it is quite a rare surname, Malaysia, where it is a very rare surname, and Philippines, where it is an extremely rare surname. Also, ตันหยง is the forename as well as the last name.