Randy Evan Barnett (born February 5, 1952) is a lawyer, a law professor at Georgetown University Law Center, where he teaches constitutional law and contracts, and a legal theorist in the United States. He writes about the libertarian theory of law and contract theory, constitutional law, and jurisprudence.After attending Northwestern University in Evanston, Illinois, and Harvard Law School in Cambridge, Massachusetts, Barnett worked as a prosecutor in Chicago, Illinois. Barnett's first academic position was at the Chicago-Kent College of Law of the Illinois Institute of Technology. He later became the Austin B. Fletcher Professor of Law at Boston University, where he served as the faculty adviser for the Federalist Society. He joined the faculty of Georgetown University Law Center in 2006. Barnett is a Senior Fellow of the Cato Institute and the Goldwater Institute. His book The Structure of Liberty won the Ralph Gregory Elliot Book Award in 1998. In 2008 he was awarded a Fellowship in Constitutional Studies by the John Simon Guggenheim Memorial Foundation.