Last name เพชรแสงธรรม (เพชรแสงธรรม 
) , all over the world, is a very rare surname. The family name เพชรแสงธรรม is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| เพชรแสงธรรม | Thailand |