Robert L. DuPont (born March 25, 1936 in Toledo, Ohio) is an American psychiatrist, known for his advocacy in the field of substance abuse. He is president of the Institute for Behavior and Health, whose mission is "to reduce the use of illegal drugs". He has written books including Chemical Slavery: Understanding Addiction and Stopping the Drug Epidemic, The Selfish Brain: Learning from Addiction, as well as Drug Testing in Treatment Settings, Drug Testing in Schools, and Drug Testing in Correctional Settings, published by the Hazelden Foundation. DuPont is a fellow of the American Society of Addiction Medicine and a life fellow of the American Psychiatric Association.