Surname กำแหงฤทธิรงค์ (กำแหงฤทธิรงค์, Kamhangridhirong 
) , in all the world, is an extremely rare family name. The cognomen กำแหงฤทธิรงค์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kamhangridhirong | Thailand |