Max de Crinis

Max de Crinis (1889-1945) was a German academic psychiatrist who worked with the Nazis in a number of efforts, including the planning of the euthanasia program and, assisting counterespionage personnel of the SD, in field operations.

De Crinis, however, who Robert Jay Lifton called the "most outspoken and influential Nazi in the German psychiatric establishment", was both a respected physician and a Nazi activist. He worked with the RuSHA, but also performed respected research and probably protected some concentration camp and potential euthanasia victims. After he examined Hitler and diagnosed Parkinson's Disease, he was part of an initiative for a 1945 armistice with the West, working with Heinrich Himmler, Leonardo Conti, and Walter Schellenberg.

He committed suicide in May 1945.