Surname Кагян (Kagyan 
, Кагян 
, Kagian 
) , in all the world, is a very rare family name. The family name Кагян is characteristic of Israel, where it is a very rare surname, Russia, and Canada, where it is an extremely rare surname. Not in comparison with a country's population, it is the most numerous in Russia, Israel, and India. Very seldom, Кагян is the forename as well as the last name.