The Catholic Church in Germany comprises 7 ecclesiastical provinces each headed by an archbishop. The provinces are in turn subdivided into 20 dioceses and 7 archdioceses each headed by a bishop or an archbishop.
List of Dioceses
Episcopal Conference of Germany
Ecclesiastical province of Bamberg
Archdiocese of Bamberg
Diocese of Eichstätt
Diocese of Speyer
Diocese of Würzburg
Ecclesiastical province of Berlin
Archdiocese of Berlin
Diocese of Dresden-Meissen
Diocese of Görlitz
Ecclesiastical province of Cologne
Alternative name: Rhenish Ecclesiastical Province
Archdiocese of Cologne
Diocese of Aachen
Diocese of Essen
Diocese of Limburg
Diocese of Münster
Diocese of Trier
Ecclesiastical province of Freiburg im Breisgau
Alternative name: Upper Rhenish Ecclesiastical Province
Archdiocese of Freiburg im Breisgau
Diocese of Mainz
Diocese of Rottenburg-Stuttgart
Ecclesiastical province of Hamburg
Alternative name: Northern German Ecclesiastical Province
Archdiocese of Hamburg
Diocese of Hildesheim
Diocese of Osnabrück
Ecclesiastical province of Munich and Freising
Archdiocese of Munich and Freising
Diocese of Augsburg
Diocese of Passau
Diocese of Regensburg
Ecclesiastical province of Paderborn
Alternative name: Central German Ecclesiastical Province
Archdiocese of Paderborn
Diocese of Erfurt
Diocese of Fulda
Diocese of Magdeburg
Gallery of Archdioceses
References
Catholic-Hierarchy entry. GCatholic.org.