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