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Cognomen Wanka (Ванка , Wanka , 万卡 ) , in all the world, is quite a rare surname. The family name Wanka is characteristic of Bulgaria, where it is quite a common surname, Austria, where it is quite a rare surname, and Germany. Not in comparison with a country's population, it most frequently occurs in Bulgaria, Germany, and Cameroon. Likewise, Wanka is the forename as well as the last name.