Surname Riansangawong (Riansangawong 
) , in the world, is a very rare cognomen. The family name Riansangawong is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Riansangawong | Thailand |
Wiboon, Sorapum, Ponthip, and Pariyakorn