Last name ฤทธิเดชากุล (ฤทธิเดชากุล 
) , all around the world, is a very rare surname. The last name ฤทธิเดชากุล is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| ฤทธิเดชากุล | Thailand |