The Bishopric of Münster was an ecclesiastical principality in the Holy Roman Empire, located in the northern part of today's North Rhine-Westphalia and western Lower Saxony. From the sixteenth to the eighteenth centuries, it was often held in personal union with one or more of the nearby ecclesiastical principalities of Cologne, Paderborn, Osnabrück, Hildesheim, and Liège.

The Diocese of Münster is an ecclesiastical territory or diocese of the Roman Catholic Church in Germany. It is a suffragan diocese of the Archdiocese of Cologne. Bishop Felix Genn is the current Bishop of the Diocese of Münster. He was ordained to the priesthood on July 11, 1976 and was appointed to the See of Münster on December 19, 2008.