Cognomen ธรรมธนาฤทธิ์ (ธรรมธนาฤทธิ์ 
) , in the world, is an extremely rare surname. The last name ธรรมธนาฤทธิ์ is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| ธรรมธนาฤทธิ์ | Thailand |