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