Surname Мосоян (Мосоян 
, Mosoian 
) , around the globe, is quite a rare family name. The surname Мосоян is characteristic of Georgia, where it is quite a common surname, Russia, where it is a rare surname, and Belarus. In absolute terms, the name is most common in Russia, Georgia, and Ukraine. Likewise, Мосоян is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Мосоян | Ukraine, Kazakhstan, Belarus, Russia, Armenia |
| Mosoian | United States, Georgia |