Cognomen เพชรฤชา (เพชรฤชา 
, Pechruecha , Phechruecha) , all around the world, is a very rare family name. The cognomen เพชรฤชา is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| เพชรฤชา, Pechruecha | Thailand |