The Prince-Bishopric of Regensburg (German: Fürstbistum Regensburg; Hochstift Regensburg) is a small ecclesiastical principality of the Holy Roman Empire located near the Free Imperial City of Regensburg in Bavaria. It is elevated to the Archbishopric of Regensburg in 1803 after the dissolution of the Archbishopric of Mainz. The Prince-Bishopric of Regensburg must not be confused with the Roman Catholic Diocese of Regensburg, which was considerably larger.