Ernst-Robert Grawitz was a German physician and an SS functionary (Reichsarzt, "arzt" meaning "physician") during the Nazi era.
Grawitz was born in Charlottenburg, in the western part of Berlin, Germany. As Reichsarzt SS und Polizei (Reich Physician SS and Police), Grawitz was also head of the German Red Cross. Grawitz funded Nazi attempts to "eradicate the perverted world of the homosexual" and research into attempts to "cure" homosexuality. This involved experimentation on inmates in Nazi concentration camps. He was in charge of "enthusiastic" experiments on concentration camp inmates.
Grawitz was also a part of the group in charge of the killing of mentally ill and physically handicapped people in the Action T4 "euthanasia" programme, especially the child "euthanasia" from 1939. The officials selected the doctors who were to carry out the operational part of the killing programme.