Last name นันทฤทธิ์ (Nantarit 
, นันทฤทธิ์ , Nuntarit 
) , in the entire world, is a very rare cognomen. The last name นันทฤทธิ์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. More prevalently, นันทฤทธิ์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Nantharit, นันทฤทธิ์, Nantarit | Thailand |
| Nuntarit | United States |
Nuntalit, and Nuntharith