Last name รัตนาวรณ์ (รัตนาวรณ์, Ratthanatavon, Ruttanawon 
) , throughout the world, is an extremely rare family name. The last name รัตนาวรณ์ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Ruttanawon | Thailand |