Justin Dyer is the executive director of the Civitas Institute, professor of government, and Jack G. Taylor Regents Professor at The University of Texas at Austin. He also is interim dean of the School of Civic Leadership.

Dyer writes and teaches in the fields of American political thought, jurisprudence and constitutionalism, with an emphasis on the perennial philosophical tradition of natural law. He is the author or editor of eight books and numerous articles, essays and book reviews. His most recent book, with Kody Cooper, is The Classical and Christian Origins of American Politics: Political Theology, Natural Law, and the American Founding, published in 2022 by Cambridge University Press. His previous books with Cambridge University Press include C.S. Lewis on Politics and the Natural Law (2016); Slavery, Abortion, and the Politics of Constitutional Meaning (2013); and Natural Law and the Antislavery Constitutional Tradition (2012). He also is co-editor of the two-volume constitutional law casebook American Constitutional Law (4th edition, West Academic), which has been adopted at leading universities across the country.

Previously, he was a professor of political science at the University of Missouri, where he served as the founding director of the Kinder Institute on Constitutional Democracy, a signature academic center for the study of American political thought and history. After attending the University of Oklahoma on a wrestling scholarship, he completed his M.A. and Ph.D. in Government at The University of Texas at Austin.