Cognomen Pongpansook (Pongpansook 
) , all over the world, is an extremely rare surname. The last name Pongpansook is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Pongpansook | Thailand |
Pornsak, Rathanon, and Pongsatorn