All around the world, Aidjan (Айджан 
, Aidjan 
) is a rare epicene forename. The given name Aidjan is characteristic of Azerbaijan, where it is quite a rare masculine name, Kyrgyzstan, where it is quite a rare principally feminine, but very seldom masculine name, and Bulgaria, where it is a rare female name. Measured by absolute frequency, this name is the most popular in Azerbaijan, Kazakhstan, and Kyrgyzstan. Much less frequently, Aidjan is the last name as well as the forename.