Surname Mugnetsyan (Mugnetsyan 
, Мугнецян 
) , across the world, is a very rare cognomen. The cognomen Mugnetsyan is habitual in Ukraine, where it is a very rare surname, Russia, and Kazakhstan.
| VARIANT | COUNTRY |
|---|---|
| Mugnetsyan | United States |
| Мугнецян | Kazakhstan, Russia, Ukraine |