Family name Khalachyan (Khalachyan 
, Халачян 
) , in all the world, is a rare last name. The cognomen Khalachyan is habitual in Russia, where it is a rare surname, Ukraine, where it is an extremely rare surname, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Khalachyan | United States, Russia |
| Халачян | Russia, Ukraine |