Surname บุญจำรูญ (บุญจำรูญ, Boonjamroon, Bunchamrun 
) , globally, is a very rare cognomen. The cognomen บุญจำรูญ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Bunchamrun | Thailand |
Boonchamroon, and Merit