Surname Piwngern (Piwngern 
) , in all the world, is a very rare family name. The family name Piwngern is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Piwngern | Thailand |
Somsak, Anuluk, Mattanita, and Pichayawee