Last name หาญฤทธิรงค์ (หาญฤทธิรงค์ 
) , all around the world, is an extremely rare cognomen. The cognomen หาญฤทธิรงค์ is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| หาญฤทธิรงค์ | Thailand |