Last name Phadthong (Phadthong 
) , in all the world, is a very rare family name. The family name Phadthong is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Much less frequently, Phadthong is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Phadthong | Thailand |