The mind of Adolf Hitler has been widely studied and written about since his death on April 30, 1945. Academicians, especially psychologists, have spent a great deal of effort trying to diagnosis the mental illnesses that probably afflicted Hitler. This project is an attempt to diagnose the mental illnesses that disturbed Hitler, based on a thorough analysis of six critical aspects of his life: early family history; significant relationships; political career; leadership style; medical history; and decline and death. A Diagnostic and Statistical Manual of Mental Disorders, 4th Edition (DSM-IV) diagnosis is offered as well as a psychoanalytic analysis of this diagnosis. Prognosis and treatment recommendations are also provided. This analysis is meant to provide a fresh perspective on the mental health of Adolf Hitler.