Family name Phounpaseuth (Phounpaseuth 
) , throughout the world, is quite a rare last name. The surname Phounpaseuth is characteristic of South-eastern Asia, particularly Laos, where it is quite a common surname.
| VARIANT | COUNTRY |
|---|---|
| Phounpaseuth | Laos |
|
piyamath phounpaseuth |
|