Margarete Freinberger was an SS supervising wardress in two concentration camps during the last two years of World War II.

Margarete Freinberger was born on June 11, 1919 in Grieskirchen , Austria. In September 1944, she was called to serve in the newly-opened women's section at the Mauthausen camp in Austria. Immediately, Margarete impressed her superiors with her cruelty, and she was promoted to chief wardress (Oberaufseherin). In November 1944, Margarete became second in charge of 500 women prisoners at the Lenzing subcamp, located close to Mauthausen. There she continued her abuse and cruelty. As the Americans swept through Austria she fled Lenzing. She was never prosecuted for her crimes in the Mauthausen and Lenzing camps.