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