Family name ธันย์หิรัญกุล (ธันย์หิรัญกุล 
) , across the world, is an extremely rare last name. The surname ธันย์หิรัญกุล is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| ธันย์หิรัญกุล | Thailand |