Family name Sapaphun (Sapaphun 
) , around the world, is a very rare cognomen. The last name Sapaphun is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Very seldom, Sapaphun is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sapaphun | Thailand |
Arjarree, Pongphon, Suchatinee, and Wimonphun