Cognomen รัตนอมร (รัตนอมร 
, Rattanaamorn , Ratanaamorn 
) , all over the world, is a rare family name. The family name รัตนอมร is characteristic of Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname. Very seldom, รัตนอมร is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rattanaamron, Rattanaamorn, รัตนอมร | Thailand |
| Ratanaamorn | United States, Thailand |