Surname ฤทธิ์ธนโสธร (ฤทธิ์ธนโสธร 
) , all over the world, is an extremely rare cognomen. The cognomen ฤทธิ์ธนโสธร is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| ฤทธิ์ธนโสธร | Thailand |