Roman Catholic Archdiocese of Nidaros

Former Archdiocese of Nidaros Archidioecesis Nidrosiensis Nidaros Erkebispedømme
Nidaros Cathedral, Trondheim, Norway
Location
Country	Norway
Ecclesiastical province	Nidaros
Metropolitan	Nidaros, Trondheim, Sør-Trøndelag
Coordinates	63°25′37″N 10°23′49″E / 63.4269°N 10.3969°E / 63.4269; 10.3969
Information
Denomination	Roman Catholic
Rite	Latin Rite
Established	1152–1537 (Diocese 1030–1152, Evangelical Lutheran diocese[1] since 1537)
Cathedral	Nidaros Cathedral

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