Joachim Mrugowsky (15 August 1905 – 2 June 1948) was a Nazi bacteriologist who committed medical atrocities at the Sachsenhausen concentration camp. He was Associate Professor, Medical Doctorate, Chief of Hygiene Institute of the Waffen-SS, Senior Hygienist at the Reich, SS-Physician, SS and Waffen-SS Colonel. He was found guilty of war crimes following the war in the Doctors' Trial and executed in 1948.

Early life and education
Mrugowsky was born to a family of Polish origin; his father was a medical doctor. In 1925, Mrugowsky began his studies of natural sciences and medicine at the University of Halle. He completed the studies in 1930–1931 with a medical doctorate and a doctorate of natural sciences. 1930–1931 he was the Hochschulgruppenführer (University group leader) of the National Socialist German Students' League branch at the University of Halle. After a two-year internship, he became an assistant at the Hygiene Institute of the University of Halle. Mrugowsky was made an associate professor in the area of hygiene at the University of Berlin in September 1944.

Nazi activities and war crimes
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. 210,049). In 1931, he joined the SS, where he achieved the rank of Oberführer in both the General SS and the Waffen-SS. 

Mrugowsky coordinated human experimentation at the Sachsenhausen concentration camp near Berlin. This included testing of typhus vaccines, and biological warfare agents including poisoned bullets and lethal injections.

Trial and conviction
He was implicated in the Nazi human experimentation program, with the exception of the aviation experiments, which were conducted on concentration camp prisoners. Mrugowsky was convicted of various charges in the Doctors' Trial and sentenced to death in August 1947. He was executed on 2 June 1948.

References

1905 births
1948 deaths
Academic staff of the Humboldt University of Berlin
Executed German mass murderers
Executed people from Brandenburg
Executions by the United States Nuremberg Military Tribunals
Executed Nazi concentration camp personnel
German people convicted of crimes against humanity
German people of Polish descent
Holocaust perpetrators in Germany
Medical practitioners convicted of murdering their patients
Nazi human subject research
Nazi Party politicians
People from Rathenow
Physicians from the Province of Brandenburg
Physicians in the Nazi Party
Sachsenhausen concentration camp personnel
SS-Oberführer
Waffen-SS personnel