Last name Praphaiwong (Praphaiwong 
) , in the entire world, is a very rare surname. The family name Praphaiwong is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Praphaiwong | Thailand |
| thammanūn praphaiwong (b. 1932) |
|