Roman Catholic Diocese of Pembroke

The Roman Catholic Diocese of Pembroke (Dioecesis Pembrokensis) (erected 11 July 1882, as the Vicariate Apostolic of Pontiac) is a suffragan of the Archdiocese of Ottawa. It was elevated as the Diocese of Pembroke on 4 May 1898. The Cathedral of St. Columbkille in Pembroke is the mother church of the Diocese of Pembroke.

Ordinaries

 * Narcisse Zéphirin Lorrain (1882–1915)
 * Patrick Thomas Ryan (1916–1937)
 * Charles Leo Nelligan (1937–1945)
 * William Joseph Smith (1945–1971)
 * Joseph Raymond Windle (1971–1993)
 * Brendan Michael O'Brien (1993–2000), appointed Archbishop of Saint John's, Newfoundland
 * Richard William Smith (2002–2007), appointed Archbishop of Edmonton, Alberta
 * Michael Mulhall (2007–2019), appointed Archbishop of Kingston, Ontario
 * Guy Desrochers (2020-2023), appointed Archbishop of Moncton, New Brunswick
 * Michael Brehl (2024 - present), bishop-elect

Coadjutor bishop

 * Joseph Raymond Windle (1969–1971)

Auxiliary bishop

 * Patrick Thomas Ryan (1912–1916), appointed Bishop here

Other priests of this diocese who became bishops

 * Élie Anicet Latulipe, appointed Vicar Apostolic of Temiskaming, Ontario in 1908
 * Michael Alphonsus Harrington, appointed Bishop of Kamloops, British Columbia in 1952 and died in 1973
 * James Matthew Wingle, appointed Bishop of Yarmouth, Nova Scotia in 1993

Educational Institutions

 * Renfrew County Catholic District School Board

Cemeteries

 * St. Columba's Cemetery (Pembroke)