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Suffragan diocese Thunder Bay, Canada

Diocese of Thunder Bay

Sinus Tonitralis

Latin Church

Latin rite diocese in northwestern Ontario, erected in 1952 as the Diocese of Fort William and renamed Thunder Bay in 1970. It is a suffragan of the Archdiocese of Toronto and is led by Bishop Alan Campeau, appointed in January 2025.

On the map

Esri
Thunder Bay, Canada, drawn to the town rather than to the door: the register holds no verified address for its cathedral.

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Established
1952
Catholics
89,000
Priests
28
Territory
220,000 km²

Parishes and churches

32 listed churches in our records. Open a parish for Mass times, confession, directions and sources where recorded.

This is our recorded coverage, not an official diocesan parish count. Confirm service times with the parish before travelling.

The bishop

Bishop
Alan Campeau
Born
1 August 1959
Birthplace
Belle River

Explore the ministry of the bishop.

The cathedral

St. Patrick's Cathedral stands in Thunder Bay, the church that holds the cathedra from which this see takes its name.

On what a cathedral is, see the cathedral; every see church on earth is gathered at the cathedrals.

History

In Ontario, Canada, the Diocese of Thunder Bay (Latin: Dioecesis Sinus Tonitralis) serves as a Latin suffragan within the ecclesiastical province of the Metropolitan Archdiocese of Toronto. Its bishop's seat is St. Patrick's Cathedral in Thunder Bay, Ontario, dedicated to St. Patrick.

This see in the wire

Filed by the see itself

Published on the see's own news feed. A diocese reports on the whole Church, so these are often about somewhere else.

9 stories in the wire either name this see or come from its own feed. Read the wire.