Last name หิรัญกิจเจริญ (หิรัญกิจเจริญ 
) , across the world, is an extremely rare surname. The family name หิรัญกิจเจริญ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| หิรัญกิจเจริญ | Thailand |