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Last name Roeder (罗德 , Roeder , Röder ) , throughout the world, is a common cognomen. The surname Roeder is characteristic of Germany, where it is quite a common surname, Luxembourg, where it is quite a rare surname, and Namibia. Measured by absolute frequency, it is the most numerous in Germany, the United States, and Brazil. Very seldom, Roeder is the forename as well as the last name.