Cognomen Авагьян (Avagyan 
, Avagian 
, Авагьян 
) , around the world, is quite a rare surname. The surname Авагьян is habitual in Armenia, where it is quite a common surname, Lithuania, where it is quite a rare surname, and Mauritania. Measured by absolute frequency, this name is the most popular in Armenia, the United States, and Russia. Much less frequently, Авагьян is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Avagyan | Armenia, Russia, Mauritania, United States, Afghanistan |
| Avagian | Armenia, Russia, Georgia, United States, Lithuania |
| Авагьян | Russia, Ukraine |