Surname ฤทธิ์เพชรรัตน์ (ฤทธิ์เพชรรัตน์ 
) , throughout the world, is a very rare family name. The surname ฤทธิ์เพชรรัตน์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| ฤทธิ์เพชรรัตน์ | Thailand |