St. Ambrose Church was a Catholic parish church in Bridgeport, Connecticut, part of the Diocese of Bridgeport. The church was sometimes referred to as the Church on the Hill. St. Ambrose's Church was a landmark in this part of Bridgeport, Connecticut, built in a Romanesque style in 1939 to the designs of Brooklyn architect Anthony J. DePace of DePace & Juster. The parish was closed in 2012. In 2022, the property was announced as the new site of Fairfield Bellarmine, a new campus of Fairfield University.