Henry Nodle Butler (born February 16, 1954) is an American professor of law, economics, and public policy and former executive director of the Law and Economics Center at the Antonin Scalia Law School in Arlington, Virginia. Butler formerly served as the director of the Judicial Education Program at the American Enterprise Institute-Brookings Institution Joint Center for Regulatory Studies. A conservative, he supports free markets with little regulation. He has acted as an expert witness in a legal cases involving antitrust, restrictive covenants, damages, joint ventures, and other issues.