Cognomen Melkonjan (Мелконян 
, Melkonjan 
) , all around the world, is a common family name. The cognomen Melkonjan is habitual in Eastern Europe, particularly Russia, where it is quite a rare surname, Belarus, and Ukraine. Also, Melkonjan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Мелконян | Kazakhstan, Armenia, Russia, Belarus, Ukraine |
| Melkonjan | Netherlands, Estonia, United States, Belarus |
| sergey melkonjan actor (1947-2018), US (b. 1947) |
|