Surname Khamphithak (Khamphithak 
) , around the globe, is a very rare family name. The cognomen Khamphithak is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Khamphithak | Thailand |
Disaya, Wisuwat, Wisuvat, and Thiraphong