Family name Унаньян (Унаньян 
, Unanian 
, Unanyan 
) , across the world, is a rare last name. The cognomen Унаньян is habitual in Georgia, where it is quite a rare surname, Armenia, where it is a rare surname, and Uruguay. Measured by absolute frequency, it is the most numerous in Georgia, Russia, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Унаньян | Kazakhstan, Russia, Ukraine, Belarus |
| Unanian | Russia, Georgia, Uruguay, United States, Brazil |
| Unanyan | Turkey, Armenia, Russia, Bulgaria, United States |