Cognomen Иана (Iana 
, Иана 
) , globally, is quite a rare surname. The family name Иана is habitual in Georgia, where it is quite a common surname, Romania, where it is quite a rare surname, and Moldova. Not in comparison with a country's population, it is the most numerous in Romania, Georgia, and Indonesia. More frequently, Иана is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Iana | Indonesia, Romania, Georgia, Moldova, Brazil |
| Иана | Azerbaijan, Kazakhstan, Russia |