Marion Aizpors (born 18 February 1961) is a retired German swimmer who won three relay medals at the 1981 and 1989 European Aquatics Championships. She also competed at the 1988 Summer Olympics in the 50 m freestyle, 100 m backstroke, 4 × 100 m freestyle and 4 × 100 m medley and finished seventh in both relay events. During her career she won nine national freestyle and backstroke titles.