Surname Phornphratang (Phornphratang 
) , globally, is a very rare last name. The surname Phornphratang is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Phornphratang | Thailand |
Nawnporn, Nawaphorn, Nawaporn, and Chaiyasith