Family name Piwngarm (Piwngarm 
) , in the entire world, is a very rare surname. The cognomen Piwngarm is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Piwngarm | Thailand |
Jintara, Nopporn, Artitaya, Hathaipat, and Phattarapol