Cognomen Rattanavanh (Rattanavanh 
) , worldwide, is a very rare family name. The last name Rattanavanh is habitual in France, where it is a very rare surname, and Canada, where it is an extremely rare surname. Very seldom, Rattanavanh is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rattanavanh | United States, Canada, France |