Surname Oviir (Oviir 
) , all around the world, is a very rare cognomen. The cognomen Oviir is habitual in Estonia, where it is quite a rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Oviir | Estonia, United States |
|
mihkel oviir Estonian lawyer, EE (b. 1942) |
|
|
liisa oviir Estonian politician, EE (b. 1977) |
|