The former Catholic Diocese of Stavanger in Norway included the modern counties of Rogaland and Agder together with the regions of Valdres and Hallingdal and the parishes of Eidfjord and Røldal from Hordaland. It existed from the beginning of the 12th century to the Protestant Reformation.

The Archdiocese of Nidaros was the metropolitan see covering Norway in the later Middle Ages. The see was the Nidaros Cathedral, in the city of Nidaros. The archdiocese existed from the middle of the twelfth century until the Protestant Reformation.