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Cognomen Korytko (Korytko , Корытко , Корытько ) , all over the world, is quite a rare surname. The surname Korytko is characteristic of Eastern Europe, particularly Belarus, where it is quite a rare surname, Slovakia, and Ukraine. In absolute terms, it is the most numerous in Eastern Europe, particularly Russia, Ukraine, and Belarus. Very seldom, Korytko is the forename as well as the last name.