Family name Карапетйан (Карапетйан 
) , around the globe, is an extremely rare last name. The cognomen Карапетйан is habitual in Eastern Europe, particularly Russia, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Карапетйан | Russia |
Karapetian, Karapetjan, and Karapetyan