Hahn (born October 28, 1957) is an American Roman Catholic theologian.
A former Presbyterian who converted to Catholicism, Hahn's popular works include Rome Sweet Home and The Lamb's Supper: The Mass as Heaven on Earth.
His lectures have been featured in multiple audio distributions through Lighthouse Catholic Media.
Hahn is known for his research on early Christianity during the Apostolic Age and various theoretical works concerning the early Church Fathers.
Hahn presently teaches at the Franciscan University of Steubenville, a Catholic university in the United States.
He has also lectured at the Pontifical College Josephinum in Columbus, Ohio.
Hahn is married to Kimberly Hahn, who co-runs their Catholic apostolate, the Saint Paul Center for Biblical Theology.