Last name มหัทธนหิรัญ์ (มหัทธนหิรัญ์ 
) , all around the world, is an extremely rare surname. The last name มหัทธนหิรัญ์ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| มหัทธนหิรัญ์ | Thailand |