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Cognomen Rybus (Rybus , Рыбус , ريبوس) , all over the world, is a rare surname. The last name Rybus is habitual in Poland, where it is quite a rare surname, Netherlands, where it is a very rare surname, and France. Measured by absolute frequency, the name is most common in Poland, the United States, and France. Also, Rybus is the forename as well as the last name.