Surname Phungamthong (Phungamthong 
) , in the world, is a very rare last name. The family name Phungamthong is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Phungamthong | Thailand |
Porapat, Saithong, Kanyarat, Thanyakan, and Tunyaphoom