St. Bonaventure University is a private, Franciscan Catholic university, located in Allegany, Cattaraugus County, New York, United States within the Diocese of Buffalo. It has roughly 2,400 undergraduate and graduate students. The university was established by the Franciscan Brothers in 1858. Its current president is Sister Margaret Carney, OSF STD, the 20th president and the first religious sister to hold the position full-time. In athletics, the St. Bonaventure Bonnies play NCAA Division I sports in the Atlantic 10 Conference. Students and alumni often refer to the university as Bona's, derived from the school's original name, St. Bonaventure's College.