The Roman Catholic Diocese of Thunder Bay (Latin: Dioecesis Sinus Tonitralis) is a Latin suffragan in the ecclesiastical province of the Metropolitan Archdiocese...

St. Patrick's Cathedral or Thunder Bay Cathedral is the Roman Catholic cathedral for the Diocese of Thunder Bay. It is situated on the corner of Donald...

was in the Diocese of Sault Sainte Marie. In 1952, the Diocese of Fort William was created and was renamed as the Diocese of Thunder Bay in 1970. In...

which it takes its name), Thunder Bay, Sudbury, Manitoulin, and parts of the districts of Nipissing and Timiskaming. The diocese forms a wide band stretching...

of the Diocese of Sault Ste. Marie was separated on August 26, 1952 to form the Diocese of Port Arthur, now known as the Diocese of Thunder Bay. Alexander...

also the ecclesiastical provincial for the dioceses of Hamilton, London, Saint Catharines, and Thunder Bay. The Archbishop is Francis Leo, appointed in...

Toronto Diocese of Hamilton Diocese of London Diocese of Saint Catharines Diocese of Thunder Bay Metropolitan Archdiocese of Vancouver Diocese of Kamloops...

Metropolitan Archdiocese of Toronto Diocese of Hamilton Diocese of London Diocese of Saint Catharines Diocese of Thunder Bay The province is geographically...

Roman Catholic Diocese of Churchill–Hudson Bay (French Diocèse de Churchill–Baie d’Hudson, Latin: Dioecesis Churchillpolitana–Sinus de Hudson) is a Latin...

non-contiguous Diocese of Thunder Bay in western Ontario. Metropolitan Archdiocese of Toronto Diocese of Hamilton, Ontario Diocese of London, Ontario Diocese of Saint...