Last name หลวงหิรัญ (หลวงหิรัญ 
, Luanghirun 
) , in all the world, is a very rare cognomen. The surname หลวงหิรัญ is characteristic of Thailand, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| หลวงหิรัญ | Thailand |
| Luanghirun | Thailand, United States |