Last name เพชรพระกาฬ (เพชรพระกาฬ 
) , all around the world, is an extremely rare family name. The last name เพชรพระกาฬ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Also, เพชรพระกาฬ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| เพชรพระกาฬ | Thailand |