Cognomen Poopun (Poopun 
) , around the world, is a very rare family name. The surname Poopun is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Poopun | Thailand |
Prasan, Anyaman, Porntipa, Wanapratch, and Preeyanuch