Cognomen Phongphio (Phongphio 
) , in the entire world, is a very rare last name. The cognomen Phongphio is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Much less frequently, Phongphio is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Phongphio | Thailand |