Rosenberg is a Germanic-language family name an toponym. Its principal meaning is "mountain of roses", from Rose + Berg. However, as a toponym, in some locations it may have originally meant "red mountain" or simply "red hill", from rot + Berg. The terminal consonant of the /rot/-/roθ/-/roð/-/ros/ syllable has varied across regions and centuries; there are many variations of the name, including Rosenberg, Rotenberg, Rothenberg, Rodenberg, and Rozenberg. Today there are many people around the world whose central-European ancestors adopted the surname, including many Ashkenazim.