Family name Phadungtham (Phadungtham 
) , globally, is an extremely rare last name. The last name Phadungtham is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Much less frequently, Phadungtham is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Phadungtham | Thailand |