Family name Phaophongsavath (Phaophongsavath 
) , all around the world, is a rare cognomen. The surname Phaophongsavath is habitual in Laos, where it is quite a rare surname, the United States, where it is an extremely rare surname, and France.
| VARIANT | COUNTRY |
|---|---|
| Phaophongsavath | Laos, France, United States |