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Cognomen Djan (Djan , Джан ) , in the entire world, is a common surname. The cognomen Djan is characteristic of Ghana, where it is quite a common surname, North Macedonia, where it is quite a rare surname, and Ivory Coast. Measured by absolute frequency, the name is most common in Ghana, Indonesia, and Ivory Coast. Much less frequently, Djan is the forename as well as the last name.