Surname Phangthai (Phangthai 
) , all around the world, is an extremely rare last name. The surname Phangthai is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Very seldom, Phangthai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Phangthai | India, Thailand |