Surname Гилавян (Гилавян 
, Gilavyan 
) , all around the world, is a very rare last name. The family name Гилавян is characteristic of Armenia, where it is a rare surname, Russia, where it is a very rare surname, and the United States, where it is an extremely rare surname. More prevalently, Гилавян is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Гилавян | Armenia, Russia |
| Gilavyan | Armenia, Russia, United States |