Family name Phanvongsa (Phanvongsa 
) , worldwide, is a rare last name. The family name Phanvongsa is characteristic of Laos, where it is quite a common surname, Australia, where it is a very rare surname, and Canada. Not in comparison with a country's population, this name is the most popular in Laos, the United States, and Australia.
| VARIANT | COUNTRY |
|---|---|
| Phanvongsa | Australia, Canada, Thailand, Laos, United States |
Joe, Chindaphet, Chanboupha, Chansamay, Senesacksith, Nilundone, Bouaphet, Chayphet, Anochith, Lakhone, Kongkeo, Anoloth, Somlith, Sabrina, Michael, Melissa, Vickie, Vatana, Tik, Suzi, Anne, Manny, Sonny, Amphy, Chindaphoy, Bacly, David, Manith, Mitxay, Saifon, Shelby, Steven, Bruce, and Christopher