Surname โรจนวงศ์เจริญ (โรจนวงศ์เจริญ 
) , around the globe, is an extremely rare family name. The family name โรจนวงศ์เจริญ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| โรจนวงศ์เจริญ | Thailand |