Family name Seynyan (Сеинян 
, Seynyan 
, Сейнян 
) , around the world, is a very rare cognomen. The surname Seynyan is characteristic of Eastern Europe, particularly Bulgaria, where it is a rare surname, Russia, where it is a very rare surname, and Ukraine, where it is an extremely rare surname. Likewise, Seynyan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Сеинян | Armenia, Russia |
| Seynyan | Bulgaria |
| Сейнян | Russia, Ukraine |