Surname Phainuphong (Phainuphong 
) , worldwide, is a very rare cognomen. The family name Phainuphong is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Very seldom, Phainuphong is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Phainuphong | Thailand |