St. Bonaventure University is a private, Franciscan Catholic university in Allegany, Cattaraugus County, New York, United States, within the Diocese of Buffalo. It has roughly 2,400 undergraduate and graduate students. The Franciscan Brothers established the university in 1858. Its president is currently Dr. Andrew Roth, who is serving in an interim position following the retirement of the university's 20th president, Sister Margaret Carney, OSF, STD, the first religious sister to hold the position full-time.