Cognomen Laphonphat (Laphonphat 
) , globally, is an extremely rare last name. The family name Laphonphat is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. More frequently, Laphonphat is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Laphonphat | Thailand |