Cognomen Phakhanthong (Phakhanthong 
) , all over the world, is a rare surname. The family name Phakhanthong is characteristic of Laos, where it is quite a rare surname, and France, where it is an extremely rare surname. Much less frequently, Phakhanthong is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Phakhanthong | France, Laos, Thailand |