Family name ดาฤทธิ์ (ดาฤทธิ์ 
) , all over the world, is a very rare surname. The cognomen ดาฤทธิ์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Also, ดาฤทธิ์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ดาฤทธิ์ | Thailand |