Ugo Mattei (born 1961) is the Alfred and Hanna Fromm Professor of International and Comparative Law at the University of California, Hastings College of the Law, in San Francisco, California, and a full professor of civil law in the University of Turin, Italy. He is the academic coordinator of the International University College of Turin, Italy, a school where issues of law and finance in global capitalism are critically approached. He is also a columnist for the Italian newspapers Il Manifesto and Il Fatto Quotidiano. For his ground-breaking studies on the commons, in 2017 Mattei won the Elinor Ostrom Award for the Collective Governance of the Commons.