Cognomen โรจนาภรณ์ (Rojjanaporn 
, Rojanaporn 
, โรจนาภรณ์ ) , across the world, is a rare surname. The surname โรจนาภรณ์ is characteristic of Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname. Very seldom, โรจนาภรณ์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rojjanaporn, โรจนาภรณ์, Rojjanapaeth | Thailand |
| Rojanaporn | United States, Thailand |