Dan Joseph Stein is a South African psychiatrist who is a professor and Chair of the Dept of Psychiatry and Mental Health at the University of Cape Town, and Director of the South African MRC Unit on Risk & Resilience in Mental Disorders. Stein was the Director of UCT's early Brain and Behaviour Initiative, and was the inaugural Scientific Director of UCT's later Neuroscience Institute. He has also been a Visiting Professor at Mount Sinai School of Medicine in the United States.