The Ecclesiastical Province of Freiburg ("Kirchenprovinz Freiburg") or "Upper Rhenish Ecclesiastical Province" ("Oberrheinische Kirchenprovinz") is an ecclesiastical province of the Roman Catholic Church in the Upper Rhine area of Germany, centring on Freiburg im Breisgau. It covers the Roman Catholic Archdiocese of Freiburg, the Roman Catholic Diocese of Mainz and the Roman Catholic Diocese of Rottenburg-Stuttgart, covering large areas of Baden-Württemberg and Hesse and small parts of Rhineland-Palatinate. Its metropolitan bishop is the Archbishop of Freiburg - that Archdiocese and the Province were both set up in 1821 in the wake of the 1801 Concordat and the 1815 Congress of Vienna.