Thomas Williams is Professor of Philosophy at the University of South Florida. He received a B.A. in Philosophy from Vanderbilt University in 1988 and a Ph.D. in Philosophy from the University of Notre Dame in 1994. Before coming to USF he taught at the University of Iowa, where he received the College of Liberal Arts and Sciences Collegiate Teaching Award in 2005.

Dr Williams's research interests are in medieval philosophy and theology (especially Augustine, Anselm, Aquinas, and Duns Scotus) and the philosophy of religion. His recent work includes several contributions to edited volumes: "Anselm on Evil," The History of Evil: Vol. 2. Evil in the Middle Ages (Routledge, forthcoming); "Atonement," Routledge Handbook of Medieval Philosophy (Routledge, forthcoming); "John Duns Scotus," Routledge Companion to Free Will (Routledge, 2016), "Anselm: Free Will and Moral Responsibility," Debates in Medieval Philosophy (Routledge, 2014); and "Hermeneutics and Reading Scripture," Cambridge Companion to Augustine, 2nd ed. (Cambridge U P, 2014). He recently published a translation of and commentary on Thomas Aquinas's Treatise on Happiness and Treatise on Human Action (co-authored with Christina van Dyke of Calvin College). He also has a forthcoming translation volume, John Duns Scotus: Selected Readings in Ethics (Oxford U P, 2017), for which he received a $138,000 grant from the National Endowment for the Humanities. He is currently editing the Cambridge Companion to Medieval Ethics.

Dr Williams co-authored Anselm (Great Medieval Thinkers, Oxford U P, 2009), edited The Cambridge Companion to Duns Scotus (2003) and Thomas Aquinas: Disputed Questions on the Virtues (2005), co-edited Philosophy in the Middle Ages (Hackett, 2010), and translated Augustine's On Free Choice of the Will (1993) and Anselm: Basic Writings (2007). He has contributed essays to the Cambridge Companions to Augustine, Anselm, Abelard, and Medieval Philosophy, and to the Cambridge History of Medieval Philosophy. His articles have appeared in journals such as Anglican Theological Review, Modern Theology, Philosophy and Literature, Apeiron, Faith and Philosophy, Journal of the History of Philosophy, British Journal for the History of Philosophy, and Archiv für Geschichte der Philosophie. He is a subject editor for medieval philosophy for the Stanford Encyclopedia of Philosophy and a member of the editorial board of Faith and Philosophy. In 2007 he recorded a course, Reason and Faith: Philosophy in the Middle Ages, for The Teaching Company (Great Courses).