Surname ฤทธาธร (ฤทธาธร 
, Rithatorn ) , around the globe, is a very rare last name. The family name ฤทธาธร is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Very seldom, ฤทธาธร is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rithatorn, ฤทธาธร | Thailand |