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Cognomen Jusko (Jusko , Юшко , Юско ) , around the world, is quite a common family name. The cognomen Jusko is habitual in Eastern Europe, particularly Slovakia, where it is quite a common surname, Belarus, where it is quite a rare surname, and Ukraine. Measured by absolute frequency, this name is the most popular in Eastern Europe, particularly Ukraine, Russia, and Slovakia. Much less frequently, Jusko is the forename as well as the last name.