Joachim Mrugowsky (15 August 1905 – 2 June 1948) was a Nazi bacteriologist who committed medical atrocities at the Sachsenhausen concentration camp.

Mrugowsky was made an associate professor in the area of hygiene at the University of Berlin in September 1944.

Since 1930, Mrugowsky had been involved in the Nazi ideology, first being the group leader of a local National Socialist German Students' Association then the NSDAP party member (No.

[4] He was implicated in the Nazi human experimentation program, with the exception of the aviation experiments, which were conducted on concentration camp prisoners.

Unrepentant to the end, Mrugowsky's last words were, "I die as a German officer sentenced by a brutal enemy and conscious I never committed the crimes charged against me.