Last name Phoumsavanh (Phoumsavanh 
) , in the world, is quite a rare surname. The last name Phoumsavanh is characteristic of Laos, where it is quite a common surname, France, where it is a very rare surname, and Thailand, where it is an extremely rare surname. Not in comparison with a country's population, the name is most common in Laos, France, and the United States. Very seldom, Phoumsavanh is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Phoumsavanh | Laos, United States, France, Thailand |