Maria Aichele was a female guard at two Nazi camps during the Second World War.

Maria Aichele was born Maria Schweizer on September 19, 1915 in Geislingen, Germany , near the French border. In 1944 she applied at the Geislingen subcamp office to become a female guard. The Nazis sent her to Natzweiler to be trained. (Only a handful of female guards served there). Maria was trained there and known in the camp for her abuse and sadism. Later Maria was sent as an Aufseherin to the Geislingen. There she continued her abuse towards the camps women, most of them Hungarian women from Auschwitz Birkenau. In late March 1945, with the onset of the American Army, Geislingen was evacuated. Maria did not accompany the transports of women to other camps, but stayed in her hometown of Geislingen. She was never arrested by the US Army, nor the French Army for her crimes in the two camps.