Lawrence Gene Sager (born 1941) is a former dean of the University of Texas School of Law. He holds the Alice Jane Drysdale Sheffield Regents Chair. Sager, who joined the Law School faculty in 2002, is the 13th dean in the Law School's 123-year history. He is best known for his theory of underenforcement. Sager is the author of two books: Justice in Plainclothes: A Theory of American Constitutional Practice (Yale University Press, 2004) and, with Christopher Eisgruber, Religious Freedom and the Constitution, (Harvard University Press, 2007).