Schimmelfennig, Schimmelpfennig is a German surname, 'schimmel' means 'moldy' and 'pfennig' 'penny'. Notable people with the surname include:
Alexander Schimmelfennig (1824–1865), Prussian soldier and political revolutionary Frank Schimmelfennig (born 1963), German professor Heinz Schimmelpfennig (1919–2010), German actor and director Roland Schimmelpfennig (born 1967), German theatre director and playwright
See also Schimmelpenninck, Dutch equivalent