Surname Сетоян (Сетоян 
) , in all the world, is a very rare family name. The cognomen Сетоян is characteristic of Eastern Europe, particularly Russia, where it is an extremely rare surname, and Ukraine. More frequently, Сетоян is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Сетоян | Ukraine, Russia, Armenia |