Cognomen Ounmaa (Ounmaa 
) , in the entire world, is a very rare surname. The last name Ounmaa is habitual in Estonia, where it is quite a rare surname, Finland, where it is a rare surname, and Spain, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Ounmaa | Finland, Spain, Estonia |
| mikk ounmaa badminton player, EE (b. 1995) |
|