Family name เพชรขุนทด (เพชรขุนทด 
, Pheumkhunthot , Petkhuntod ) , throughout the world, is a very rare surname. The family name เพชรขุนทด is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| เพชรขุนทด, Phetkhunthod, Petkhuntod, Pheumkhunthot | Thailand |