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Cognomen Riess (里斯 , リース , Riess ) , throughout the world, is quite a common last name. The last name Riess is characteristic of Western Europe, particularly Austria, where it is quite a common surname, Germany, where it is quite a rare surname, and Switzerland. In absolute terms, it is the most numerous in Germany, the United States, and Austria. Very seldom, Riess is the forename as well as the last name.