The

Roman Catholic The Catholic Church (), also known as the Roman Catholic Church, is the largest Christian church, with 1.27 to 1.41 billion baptized Catholics worldwide as of 2025. It is among the world's oldest and largest international institut ...

Diocese In Ecclesiastical polity, church governance, a diocese or bishopric is the ecclesiastical district under the jurisdiction of a bishop. History In the later organization of the Roman Empire, the increasingly subdivided Roman province, prov ...

of Valleyfield () is a Catholic diocese in

Quebec Quebec is Canada's List of Canadian provinces and territories by area, largest province by area. Located in Central Canada, the province shares borders with the provinces of Ontario to the west, Newfoundland and Labrador to the northeast, ...

and a suffragan of the

Archdiocese of Montreal The Archdiocese of Montréal () is a Latin Church ecclesiastical territory or archdiocese of the Catholic Church in Canada. A metropolitan see, its arch episcopal see is the Montreal, Quebec. It includes Montreal and surrounding areas within Queb ...

. It was erected in 1892. The diocese, which is based in the western suburbs of Montreal, features approximately 201,000 baptized Catholics. Parishioners are served by 48 priests, 17 deacons, 31 religious brothers, and 76 religious sisters. In 2008, the diocese consolidated its 63 parishes into 24.

Bishops

Ordinaries

Joseph-Médard Émard Joseph-Médard Émard (31 March 1853 – 28 March 1927) was a Canadian Roman Catholic priest A priest is a religious leader authorized to perform the sacred rituals of a religion, especially as a mediatory agent between humans and one or ...

(1892–1922), appointed Archbishop of Ottawa *

Felix-Raymond-Marie Rouleau Félix-Raymond-Marie Rouleau (April 6, 1866 – May 30, 1931) was a Canadian Cardinal of the Roman Catholic Church. He served as Archbishop of Quebec from 1926 until his death, and was elevated to the cardinalate in 1927. Early life One of e ...

, O.P. (1923–1926), appointed Archbishop of Québec (elevated to Cardinal in 1927) * Joseph Alfred Langlois (1926–1966) * Percival Caza (1966–1969) * Guy Bélanger (1969–1975) * Robert Lebel (1976–2000) * Luc Cyr (2001–2011), appointed Archbishop of Sherbrooke, Québec * Noël Simard (2011–2024) * Alain Faubert (2024–present)

Coadjutor bishop

* Percival Caza (1955–1966)

Auxiliary bishop

* Percival Caza (1948–1955), appointed Coadjutor here

Other priests of this diocese who became bishop

* Bernard Hubert, appointed Bishop of Saint-Jérôme, Québec in 1971 * Paul-Émile Léger, appointed Archbishop of Montreal, Québec in 1950

Other priest of this diocese who became cardinal

* Paul-Émile Léger, appointed

Cardinal Cardinal or The Cardinal most commonly refers to * Cardinalidae, a family of North and South American birds **''Cardinalis'', genus of three species in the family Cardinalidae ***Northern cardinal, ''Cardinalis cardinalis'', the common cardinal of ...

in 1953

References

Valleyfield Salaberry-de-Valleyfield {{Canada-RC-diocese-stub