Mehnert is a surname. Notable people with the surname include: Björn Mehnert (born 1976), German football player George Mehnert (1881–1948), American wrestler Katie Mehnert (born 1975), American businesswoman Klaus Mehnert (1906-1984), German political scientist and journalist Marcus Mehnert (born 1997), Norwegian football player Siegfried Mehnert (born 1963), German boxer Surnames from given names