Douglas Hugh Parker (August 19, 1926 – September 22, 2019) was an American law school professor. He began his law teaching career as a Harry A. Bigelow Teaching Fellow (1952–53) at the University of Chicago Law School and later taught as a professor of law at the University of Colorado College of Law (1953–75) and the Brigham Young University J. Reuben Clark Law School (1975-1991).