Diocese of Pembroke Dioecesis Pembrokensis Diocèse de Pembroke
Coat of Arms of the Diocese of Pembroke
Location
Country	Canada
Ecclesiastical province	Ottawa
Population - Catholics	65,600 (49.7%)
Information
Denomination	Roman Catholic
Rite	Roman Rite
Established	4 May 1898
Cathedral	St. Columbkille Cathedral
Patron saint	St. Columba
Current leadership
Pope	Francis
Bishop	Sede Vacante [1]
Vicar General	Rev. Michael Smith
Website
pembrokediocese.com

The Roman Catholic Diocese of Pembroke (Latin: 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.^[2]

Bishops

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, C.Ss.R. (2020-2023)

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)

Territorial losses