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Cognomen Kašuba (Kasuba , Кашуба , Kašuba ) , worldwide, is a common family name. The cognomen Kašuba is habitual in Eastern Europe, particularly Ukraine, where it is quite a common surname, Slovakia, where it is quite a rare surname, and Belarus. In absolute terms, the name is most common in Ukraine, Russia, and Zambia. Much less frequently, Kašuba is the forename as well as the last name.