Oberstabsarzt Dr. med. Ernst Gadermann (born 25 December 1913 in Wuppertal – died 26 November 1973 in Hamburg) was a German World War II doctor in the Sanitätsdienst. He was also a recipient of the Knight's Cross of the Iron Cross (). The Knight's Cross of the Iron Cross was awarded to recognise extreme battlefield bravery or successful military leadership. After World War II he became a well known cardiologist.