Surname ทาฤทธิ์ (Tarit 
, ทาฤทธิ์ ) , across the world, is a rare family name. The last name ทาฤทธิ์ is characteristic of France, where it is a rare surname, Thailand, and Bangladesh, where it is a very rare surname. Predominantly, ทาฤทธิ์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Tarit | Kenya, France, India, Bangladesh, Thailand |
| ทาฤทธิ์ | Thailand |