Paul J. Griffiths (born 1955) is the Warren Professor of Catholic Thought at Duke University.
Griffiths has previously held appointments at the University of Notre Dame, University of Illinois at Chicago and the University of Chicago. A scholar of Augustine, Griffiths' main interests and pursuits are philosophical theology and the philosophy of religion—particularly Christianity and Buddhism. He received a doctoral degree in Buddhist Studies in 1983 from the University of Wisconsin–Madison, and his early works established him as one of the most incisive interpreters of Yogācāra Buddhist philosophy. His works on Buddhism include On Being Mindless (Lasalle, IL: Open Court, 1991) and On Being Buddha (Albany: SUNY Press, 1994). After converting from Anglicanism to Roman Catholicism and accepting the Schmitt Chair of Catholic Studies at UIC, he has largely given up his work in Buddhist Studies. His recent books include: Problems of Religious Diversity (Oxford: Blackwell, 2001); Philosophy of Religion: A Reader (co-edited with Charles Taliaferro) (Oxford: Blackwell, 2003); and, Lying: An Augustinian Theology of Duplicity (Grand Rapids: Brazos Press, 2004). His latest book deals with curiositas and the nature of intellectual appetite; its title is: Intellectual Appetite: A Theological Grammar.
Recently acted as an adviser for the pope during his state visit to the UK.