Samuel Hulse Preston (born December 2, 1943) is an American demographer and sociologist. He is one of the leading demographers in the United States. He received his Ph.D in economics from Princeton University in 1968. Preston is a professor emeritus at the University of Pennsylvania in Philadelphia, Pennsylvania. He is the former dean of the School of Arts and Sciences at the University of Pennsylvania as well as a member of the National Academy of Sciences since 1987. He was elected to the American Academy of Arts and Sciences in 1986 and the American Philosophical Society in 1992.