The surname Reitberg is a habitation name, from the broad category of hereditary surnames, which are derived from place names. In this case, the surname Reitberg is derived from any of a number of places so called in Germany. The name Reitberg derives from the Yiddish royt, which means red, and the German word berg, which means hill. This was an ornamental surname for someone who lived near the red hill.
Israel
