Joachim Mrugowsky (15 August 1905 in Rathenow, Brandenburg – 2 June 1948 in Landsberg Prison, Landsberg am Lech) was a German hygienist.
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.