Carl Clauberg (28 September 1898 – 9 August 1957) was a German gynecologist who conducted medical experiments on (mostly Jewish) human subjects at Auschwitz concentration camp.

He carried out research on female fertility hormones (particularly progesterone) and their application as infertility treatments, obtaining a habilitation for this work in 1937.

[4] In 1942 he approached Heinrich Himmler, who knew of him through treatment of a senior SS officer's wife[3] and asked him for an opportunity to perform mass sterilizations on women for his experiments.

Clauberg's answer was satisfactory: One doctor with 10 assistants should be able to conduct sterilization of a few hundred, or even a few thousand, Jews in one day.

In 1955, he was released (but not pardoned) by the Soviet Union under the Adenauer-Bulganin prisoner exchange agreement, with the final group of about 10,000 POWs and civilian internees.

Bizarre behavior, including openly boasting of his "achievements" in "developing a new sterilization technique at the Auschwitz concentration camp", destroyed any chance he might have had of staying unnoticed.