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In the world, Kosts (Костас , Kosts ) is a rare masculine first name. The forename Kosts is characteristic of Bulgaria, where it is a rare male name, Lithuania, and Kazakhstan, where it is a very rare boy's name. In absolute terms, it is the most numerous in Bulgaria, Russia, and Lithuania. Very seldom, Kosts is the last name as well as the forename.
Kosts is also a name for the fictitious and mythical characters: Kostas Charitos , the fictional cop character of writer Petros Markaris.