Last name ฤทธิ์เนติกุล (ฤทธิ์เนติกุล 
, Ritnatikul , Ritnetikul 
) , throughout the world, is a rare family name. The family name ฤทธิ์เนติกุล is habitual in Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Ritnatikul, ฤทธิ์เนติกุล | Thailand |
| Ritnetikul | United States, Thailand |