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