Anni Rehborn (25 August 1904 – 15 January 1986)[2] was a German swimmer who won a bronze medal in the 4 × 100 m freestyle relay at the 1927 European Aquatics Championships.

[3] During her career she won eight national titles in the 100 m backstroke (1923–1925, 1927–1929) and 100 m freestyle events (1923–1924).

[5] Rehborn was the wife of Karl Brandt, one of Adolf Hitler's personal physicians.

[7] Karl Brandt led the Action T4 euthanasia programme started by a decree from Hitler in September 1939, in which disabled patients were executed by the regime.

Karl Brandt was tried for crimes against humanity at the Doctors' Trial, found guilty and executed by hanging.