Mühlmann or Muhlmann is a surname. Notable people with the surname include:
Géraldine Muhlmann, French political scientist and political journalist Heiner Mühlmann (born 1938), German philosopher Horst Mühlmann (1940–1991), German footballer and American football player Ottogerd Mühlmann (1908–1987), German art historian Ringo Mühlmann (born 1975), German politician (AfD) Wilhelm Emil Mühlmann (1904–1988), German ethnologist