Surname Phannouvong (Phannouvong 
) , all over the world, is a rare family name. The cognomen Phannouvong is habitual in Laos, where it is quite a rare surname, Canada, where it is an extremely rare surname, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Phannouvong | United States, Laos, Canada |