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In all the world, Hrólfr (Rolf , Hrólfur , Hrólfr) is a widespread boy's first name. The forename Hrólfr is habitual in Germany, where it is a common masculine name, Sweden, where it is quite a common male name, and the Democratic Republic of the Congo (explore the name in all countries). Very seldom, Hrólfr is the last name as well as the forename.
Hrólfr is also a name for the fictitious and mythical characters: Rolf Scamander , the fictional character in the Harry Potter universe and Rolf Gruber , the musical character in the musical The Sound of Music by Richard Rodgers; the 17 year-old Nazi delivery boy who is in love with Liesl.