Cognomen Vongphen (Vongphen 
) , across the world, is a very rare family name. The last name Vongphen is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Also, Vongphen is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Vongphen | Thailand, India |