Bergen Cathedral (Norwegian: Bergen domkirke) a cathedral in Bergen municipality in Hordaland county, Norway. It is located in the city of Bergen. The church is the seat of the "Bergen domkirke" parish and the seat of the Bergen arch-deanery in the Diocese of Bjørgvin. It is part of the Church of Norway. The first recorded historical reference to this church is dated 1181. It retains its ancient dedication to Saint Olaf.