Cognomen ديجان (Dejan 
, Dagan 
, Dijan ) , around the world, is a common last name. The cognomen ديجان is habitual in Southern Europe, particularly North Macedonia, where it is a widespread surname, Montenegro, where it is quite a common surname, and Serbia (explore the name in all countries). In absolute terms, it is the most numerous in North Macedonia, Philippines, and Serbia. More frequently, ديجان is the forename as well as the last name.