Roman Catholic Diocese of Calgary

The Diocese of Calgary is a Latin Church ecclesiastical territory or diocese of the Catholic Church in Alberta, Canada. The Diocese of Calgary is a suffragan diocese of the metropolitan Archdiocese of Edmonton.
Its cathedral episcopal see is St. Mary’s Cathedral, Calgary, Alberta.
It is currently led by Bishop William McGrattan.

History

The diocese was established on 30 Nov. 1912 as Diocese of Calgary, Latin adjective Calgarien, on territory split off from the Diocese of Saint Albert.

Bishops

Diocesan ordinaries

;Suffragan Bishops of Calgary

John Thomas McNally ; later Bishop of Roman [Catholic Diocese of Hamilton, Ontario|Hamilton] , Metropolitan Archbishop of Halifax
John Thomas Kidd, next Bishop of Roman Catholic [Diocese of London, Ontario|London]
Peter Joseph Monahan, next Metropolitan Archbishop of Regina
, emeritate as Titular Bishop of Horrea
*Auxiliary bishop Joseph Lawrence Wilhelm, Titular Bishop of Saccæa ; later Metropolitan Archbishop of Roman Catholic [Archdiocese of Kingston in Canada|Kingston] ; died 1995
Francis Joseph Klein ; previously Bishop of Saskatoon
, died 2004
Frederick Henry, previously Titular Bishop of Carinola as Auxiliary Bishop of London, Ontario|London] , Bishop of Thunder Bay , died 2024
William McGrattan ; previously Titular Bishop of Furnos minor as Auxiliary Bishop of Toronto , Bishop of Peterborough .

Auxiliary bishop

Joseph Lawrence Wilhelm, appointed Archbishop of Kingston

Statistics and extent

It includes the Calgary Region, all of southern Alberta and the extreme lower half of the Alberta's Rockies region.
As per 2014 it pastorally served 538,000 Catholics on 110,500 km² in 69 parishes with 158 priests, 50 deacons, 166 lay religious and 10 seminarians.
The diocese contains 82+ parishes and missions specifically: 37 parishes in Calgary alone; of which, 10 are ethnic parishes, an additional university parish to serve the University of Calgary and 45+ parishes and missions designated for southern Alberta and the Rockies lower region. On December 3, 2017 Bishop McGrattan announced his intention to make Our Lady of the Rockies Parish in Canmore into a Diocesan Marian Shrine in the spring of 2019.
In 2006: 87 diocesan priests, 38 religious priests
427,200 Catholics.
110 women religious, 48 religious brothers and 30 permanent deacons make up the spiritual work force in Calgary not including the other regions.