Surname Пепанян (Пепанян 
, Pepanyan 
) , worldwide, is a rare last name. The family name Пепанян is habitual in Armenia, where it is quite a rare surname, Russia, where it is a rare surname, and Belarus. In absolute terms, it most frequently occurs in Russia, Armenia, and Spain. Also, Пепанян is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Пепанян | Belarus, Russia, Ukraine, Armenia |
| Pepanyan | Russia, United States, Armenia, Spain |