The Metropolitan Archdiocese of Bamberg is a Latin Church diocese of the Catholic Church in Bavaria, one of 27 in Germany. In 2015, 32.9% of the population identified as Catholic, and 15.6% of those reported that they attend Mass on Sunday; a relatively high number in Germany. The archdiocese comprises the majority of the administrative regions of Upper Franconia and Middle Franconia, as well as a small part of Lower Franconia and the Upper Palatinate. Its seat is Bamberg. The dioceses of Speyer, Eichstätt, and Würzburg are subordinate to it. The diocese was founded in 1007 out of parts of the dioceses of Eichstätt and Würzburg. In 1817, the diocese was raised to an archdiocese.

Bamberg is a town in Upper Franconia district in Bavaria, Germany, on the river Regnitz close to its confluence with the river Main. Bamberg had 79,000 inhabitants in 2022. The town dates back to the 9th century, when its name was derived from the nearby Babenberch castle. Cited as one of Germany's most beautiful towns, with medieval streets and buildings, the old town of Bamberg with around 2,400 timber houses has been a UNESCO World Heritage Site since 1993.