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Surname Cuper (Cuper , Цупер , Cúper) , all over the world, is quite a rare family name. The last name Cuper is characteristic of Eastern Europe, particularly Poland, where it is quite a rare surname, Slovakia, and Ukraine, where it is a rare surname. In absolute terms, it is the most numerous in Poland, Ukraine, and Argentina. Also, Cuper is the forename as well as the last name.