Family name Phikounthong (Phikounthong 
) , in all the world, is a rare last name. The last name Phikounthong is habitual in South-eastern Asia, particularly Laos, where it is quite a rare surname. Likewise, Phikounthong is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Phikounthong | United States, Laos |