Schädler or Schaedler is a German surname. Notable people with the surname include:
Erich Peter Schaedler (1949–1985), German-Scottish professional footballerFranz Schädler (footballer) (born 1968), former Liechtenstein football midfielderFranz Schädler (alpine skier) (born 1917), Liechtenstein former alpine skierGustav Schädler (1883–1961)Marco Schädler (born 1965), Liechtensteiner composerTino Schaedler (born 1972), German film art director