Last name Какосян (Какосян 
, Kakosyan 
) , across the world, is a rare surname. The surname Какосян is habitual in Armenia, where it is a rare surname, Russia, and Greece. Also, Какосян is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Какосян | Armenia, Russia, Ukraine |
| Kakosyan | Greece, Armenia, Russia, United States |