Herbert David Kleber (June 19, 1934 – October 5, 2018)[2] was an American psychiatrist and substance abuse researcher. In 1968, he founded the Drug Dependence Unit at Yale University, where he was a professor of psychiatry; he headed the Unit until 1989. He then served for two and a half years as the Deputy Director for Demand Reduction at the Office of National Drug Control Policy in the White House.[3]