Family name เพ็ชรพญา (เพ็ชรพญา 
) , in the world, is a very rare last name. The family name เพ็ชรพญา is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Very seldom, เพ็ชรพญา is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| เพ็ชรพญา | Thailand |