Worldwide, Калаян (Kaloyan 
, Kaloian 
, Калаян 
) is quite a rare male forename. The first name Калаян is characteristic of Bulgaria, where it is quite a common male name, Cyprus, where it is quite a rare masculine name, and Greece, where it is a rare boy's name. In absolute terms, this name is the most popular in Bulgaria, Greece, and Italy. Much less frequently, Калаян is the last name as well as the forename.