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Last name Ролф (Rolf , Ролф ) , in all the world, is a common surname. The cognomen Ролф is characteristic of Liechtenstein, where it is quite a common surname, Eswatini, where it is quite a rare surname, and Sweden. Measured by absolute frequency, it is commonest in Germany, the United States, and Spain. Predominantly, Ролф is the forename as well as the last name.