Cognomen พื้น (Pround 
, Phuen 
, พื้น) , in the entire world, is a very rare family name. The surname พื้น is characteristic of Malaysia, where it is a very rare surname, the United Kingdom, where it is an extremely rare surname, and Thailand. Also, พื้น is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Pround | Thailand, United Kingdom, Myanmar |
| Phuen | Malaysia, Thailand, United States |