The Prince-Bishopric of Bamberg was an ecclesiastical State of the Holy Roman Empire. It goes back to the Roman Catholic Diocese of Bamberg established at the 1007 synod in Frankfurt, at the behest of King Henry II to further expand the spread of Christianity in the Franconian lands. The bishops obtained the status of Imperial immediacy about 1245 and ruled their estates as Prince-bishops until they were subsumed to the Electorate of Bavaria in the course of the German Mediatisation in 1802.

A prince-bishop is a bishop who is also the civil ruler of some secular principality and sovereignty, as opposed to Prince of the Church itself, a title associated with cardinals. Since 1951, the sole extant prince-bishop has been the Bishop of Urgell, Catalonia, who has remained ex officio one of two co-princes of Andorra, along with the French president.