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Last name Хайдин (Hajdin , Haydin , Haidin ) , in all the world, is quite a rare cognomen. The family name Хайдин is characteristic of Croatia, where it is quite a rare surname, Slovakia, and North Macedonia. Not in comparison with a country's population, it is commonest in Croatia, Serbia, and Slovakia. Much less frequently, Хайдин is the forename as well as the last name.