Family name Rojtarapong (Rojtarapong 
) , around the world, is an extremely rare cognomen. The surname Rojtarapong is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Rojtarapong | Thailand |
Peeranud, Rattinan, and Pooncharat