Surname Phumsawat (Phumsawat 
) , worldwide, is a very rare family name. The last name Phumsawat is habitual in Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname. More prevalently, Phumsawat is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Phumsawat | United States, Thailand |