Last name จันทร์จำเริญ (จันทร์จำเริญ, Janjumroen, Junjumroen 
) , in all the world, is a very rare cognomen. The family name จันทร์จำเริญ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Junjumroen, Chanjumroen | Thailand |