Last name พัธ (Phat 
, พัธ ) , around the world, is quite a rare surname. The surname พัธ is characteristic of South-eastern Asia, particularly Laos, where it is quite a rare surname, Vietnam, and Malaysia, where it is a rare surname. More prevalently, พัธ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Phat | Vietnam, Thailand, Laos, United States, Malaysia |
| พัธ | Thailand |