Cognomen Roongthanupong (Roongthanupong 
) , around the globe, is a very rare surname. The family name Roongthanupong is habitual in South-eastern Asia, particularly Malaysia, where it is a very rare surname, and Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Roongthanupong | Thailand, Malaysia |