Family name ฤทธิ์ฤดี (ฤทธิ์ฤดี 
) , in the world, is a very rare cognomen. The last name ฤทธิ์ฤดี is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Likewise, ฤทธิ์ฤดี is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ฤทธิ์ฤดี | Thailand |