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Roman Catholic Diocese of London, Ontario

For namesakes, see Diocese of London (disambiguation)

The Roman Catholic Diocese of London (Latin: Dioecesis Londonensis) is a Latin rite suffragan of the Metropolitan Archdiocese of Toronto in Ontario, southeastern Canada.

Diocese of London, Ontario

Dioecesis Londonensis
Coat of Arms of the Roman Catholic Diocese of London.svg
The Coat of Arms of the Roman Catholic Diocese of London, Ontario
Ecclesiastical provinceOntario
MetropolitanArchdiocese of Toronto
Area21,349 km2 (8,243 sq mi)
The territory comprises the following counties of Ontario: Middlesex, Elgin, Norfolk, Perth, Huron, Lambton, Kent, & Essex.
- Total
- Catholics

444,310 (22.8%)
DenominationRoman Catholic
RiteLatin Rite (or Roman)
EstablishedFebruary 21, 1856
CathedralSt. Peter's Cathedral Basilica
Patron saintThe Immaculate Conception
& St. Patrick
Secular priests169
Current leadership
BishopRonald Peter Fabbro
Metropolitan ArchbishopThomas Christopher Collins
Auxiliary BishopsJózef Andrzej Dąbrowski
Bishops emeritusJohn Michael Sherlock

The present episcopal see of the Diocese, St. Peter's Cathedral, was built in a French Gothic Revival style from 1880 to 1885. It was raised to the status of a minor basilica by Pope John XXIII in December, 1961.


Statistics and extentEdit

The Diocese covers the counties of Middlesex, Elgin, Norfolk, Oxford, Perth, Huron, Lambton, Kent and Essex.

As per 2014, it pastorally served 811,000 Catholics (38.3% of 2,120,000 total) on 21,349 km² in 107 parishes and 1 mission with 203 priests (144 diocesan, 59 religious), 61 deacons, 228 lay religious (60 brothers, 168 sisters) and 11 seminarians.

The Diocese also runs St. Peter's Seminary, which is now affiliated with the University of Western Ontario.


Episcopal OrdinariesEdit

(all Roman Rite)

Suffragan Bishops of London, Ontario
Suffragan Bishops of Sandwich
Suffragan Bishops of London, Ontario

See alsoEdit


Sources and external linksEdit

  • Roman Catholic Diocese of London site
  • GCatholic, with Google map - date for all sections
  • St. Peter's Seminary (Diocese of London, Ontario)
  • "Diocese of London". Catholic-Hierarchy. Retrieved 2007-03-13.