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