Gudrun Wegner (later Wünsche, 28 February 1955 – 16 January 2005) was a German swimmer. She competed at the 1972 Summer Olympics in the 200, 400 and 800 m freestyle events; she won a bronze medal in the 400 m and finished fifth in 800 m. Later she won one gold, one silver and two bronze medals in the 400 m medley and 800 m freestyle events at the 1973 World Aquatics Championships and 1974 European Aquatics Championships. In 1973 she also set a world record in the 400 m medley.
After retirement from competitions she graduated from the German Institute of Physical Education (DHfK) in Leipzig and worked as a coach. The unification of Germany left her jobless. She briefly worked as waitress and then re-trained as social therapist. She died of cancer.