The Reglerkirche (pronounced [ˈʁeːglɐˌkɪʁçə], also called Augustinuskirche, "Augustine's Church") is a church building in the historical centre of Erfurt in Thuringia, Germany. It serves a Lutheran parish as a place of worship and is one of the larger churches in the city's old part. In times of the former German Democratic Republic, it was considered a centre of church music in Erfurt.