Last name Pongtharangkul (Pongtharangkul 
) , across the world, is an extremely rare family name. The cognomen Pongtharangkul is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Pongtharangkul | Thailand |
| thunyarat pongtharangkul researcher |
|