Family name เพ็ชรรัตนมุณี (เพ็ชรรัตนมุณี 
) , across the world, is a very rare last name. The surname เพ็ชรรัตนมุณี is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| เพ็ชรรัตนมุณี | Thailand |