Surname Kahjan (Кахян 
, Kahjan 
) , across the world, is a very rare last name. The last name Kahjan is habitual in Eastern Europe, particularly Russia, where it is a very rare surname. More frequently, Kahjan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Кахян | Armenia, Russia |
| Kahjan | India |