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Surname Ruhmann (Ruhmann
) , around the world, is quite a rare cognomen. The cognomen Ruhmann is characteristic of Germany, where it is quite a rare surname, Denmark, where it is a rare surname, and Norway, where it is a very rare surname. In absolute terms, it most frequently occurs in Germany, the United States, and Brazil. Much less frequently, Ruhmann is the forename as well as the last name.