Family name Калачиан (Калачиан 
, Kalachian 
) , across the world, is a rare surname. The last name Калачиан is characteristic of Georgia, where it is a rare surname, Greece, where it is a very rare surname, and Russia. In absolute terms, this name is the most popular in Russia, Georgia, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Калачиан | Russia |
| Kalachian | Georgia, Greece, France, Canada, United States |