Surname ธนหิรัญสิทธิ์ (ธนหิรัญสิทธิ์ 
) , across the world, is an extremely rare last name. The surname ธนหิรัญสิทธิ์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| ธนหิรัญสิทธิ์ | Thailand |