August Heißmeyer (or Heissmeyer – born 11 January 1897 in Gellersen, nowadays part of Aerzen; died 16 January 1979 in Schwäbisch Hall), was a leading member of the SS. After World War II, Heissmeyer was sentenced to a prison term as a war criminal. His nephew, Kurt Heissmeyer, an SS physician, was as well.