Family name Oihana (Oihana 
) , in all the world, is a rare surname. The last name Oihana is habitual in Spain, where it is quite a rare surname, France, where it is a very rare surname, and Venezuela, where it is an extremely rare surname. More prevalently, Oihana is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Oihana | France, Afghanistan, Romania, Finland, Spain |