Cognomen ฤทธิพรหม (ฤทธิพรหม 
, Rittiprom , Ritthaphom) , in the world, is a very rare family name. The surname ฤทธิพรหม is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| ฤทธิพรหม, Ritthiphrom, Rittiprom | Thailand |
Ritthaphrm, and Ritthiphorm