Family name Kerdphanphong (Kerdphanphong 
) , globally, is a very rare last name. The cognomen Kerdphanphong is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kerdphanphong | Thailand |
Supirat, Chaiwat, Kasidis, Pawarin, and Khampeerada