Cognomen Бильбулян (Бильбулян 
, Bilbulyan 
, Bilboulian 
) , worldwide, is a very rare family name. The last name Бильбулян is habitual in Armenia, where it is a rare surname, Georgia, and Russia, where it is a very rare surname. Measured by absolute frequency, it is commonest in Russia, the United States, and Armenia.
| VARIANT | COUNTRY |
|---|---|
| Бильбулян | Georgia, Russia |
| Bilbulyan | United States, Armenia, Russia, Chile |
| Bilboulian | France |