The Catholic Church in Canada, is part of the worldwide Catholic Church, and has a decentralised structure, meaning each diocesan bishop is autonomous but under the spiritual leadership of the Pope and the Canadian Conference of Catholic Bishops. As of 2021, it has the largest number of adherents to a Christian denomination and a religion in Canada, with 29.4% of Canadians being adherents according to the census in 2021. There are 73 dioceses and about 7,000 priests in Canada. On a normal Sunday, between 15 and 25 percent of Canada's Catholics attend Mass.

Quebec is one of the thirteen provinces and territories of Canada. It is the largest province by area and the second-largest by population. Much of the population lives in urban areas along the St. Lawrence River, between its most populous city, Montreal, and the provincial capital, Quebec City. Located in Central Canada, the province shares land borders with Ontario to the west, Newfoundland and Labrador to the northeast, New Brunswick to the southeast, and a coastal border with Nunavut; in the south it borders the United States.