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 | Russia, Ukraine, Kazakhstan, Belarus |
| Unanian | Brazil, Uruguay, Georgia, United States, Russia |
| Unanyan | Bulgaria, Armenia, United States, Russia, Turkey |