Cognomen ระวรรณ์ (ระวรรณ์ 
) , across the world, is an extremely rare family name. The surname ระวรรณ์ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. More prevalently, ระวรรณ์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ระวรรณ์ | Thailand |