thumb|Population distribution of largest religious affiliation in Canada by census division, 2021 Census.

Religion in Canada encompasses a wide range of beliefs and customs that historically has been dominated by Christianity. The constitution of Canada refers to 'God'; however Canada has no official church and the government is officially committed to religious pluralism. Freedom of religion in Canada is a constitutionally protected right, allowing individuals to assemble and worship without limitation or interference. Rates of religious adherence have steadily decreased since the 1960s. Canada has become a post-Christian state. Although the majority of Canadians consider religion to be unimportant in their daily lives, they still believe in God. The practice of religion is generally considered a private matter throughout society and the state.

Before the European colonization, a wide diversity of Native religions and belief systems of the Indigenous peoples in Canada were largely animistic or shamanistic. During the colonial period, the French settled along the shores of the Saint Lawrence River, specifically Latin Church Catholics, including a number of Jesuits dedicated to converting indigenous peoples.

These attempts reached a climax in the late 19th and early 20th centuries with forced integration through state-funded boarding schools run by both Catholics and Protestants that attempted to assimilate Indigenous children.

British colonization brought waves of Anglicans and other Protestants to Upper Canada, now Ontario. The settlement of the West brought significant Eastern Orthodox immigrants from Eastern Europe and Mormon and Pentecostal immigrants from the United States. The Jewish, Islamic, Jain, Sikh, Hindu, and Buddhist communities—although small—are as old as the nation itself.

According to the 2021 census, Christianity is the largest religion in Canada, with Catholics representing 29.9 percent of the population having the most adherents. Christians overall representing 53.3 percent of the population, are followed by people reporting irreligion or having no religion at 34.6 percent. Other faiths include Islam (4.9 percent), Hinduism (2.3 percent), Sikhism (2.1 percent), Buddhism (1.0 percent), Judaism (0.9 percent), and Indigenous spirituality (0.2 percent). Canada has the second-largest national Sikh population, behind India.

Religious pluralism

thumb|Freedom of religion sculpture by Marlene Hilton Moore at the McMurtry Gardens of Justice in Toronto

Canada today has no state religion, and the Government of Canada is officially committed to religious pluralism. While the Canadian government's official ties to religion, specifically Christianity are few, the Preamble to the Canadian Charter of Rights and Freedoms makes reference to "the supremacy of God." The national anthem in both official languages also refers to God. Nevertheless, the rise of irreligion within the country and influx of non-Christian peoples has led to a greater separation of government and religion, demonstrated in forms like "Christmas holidays" being called "winter festivals" in public schools. Some religious schools are government-funded as per Section Twenty-nine of the Canadian Charter of Rights and Freedoms.

Canada is a Commonwealth realm in which the head of state is shared with 14 other countries. As such, Canada follows the United Kingdom's succession laws for its monarch, which bar Catholics from inheriting the throne. Within Canada, the monarch's title includes the phrases "By the Grace of God".

Christmas and Easter are nationwide holidays, and while Jews, Muslims, Hindus, Buddhists and other religious groups are allowed to take their holy days off work, they do not share the same official recognition. In 1957, the Parliament declared Thanksgiving "a day of general thanksgiving to almighty God for the bountiful harvest with which Canada has been blessed."

There was an ongoing battle in the late 20th century to have religious garb accepted throughout Canadian society, mostly focused on Sikh turbans. The Canadian Armed Forces authorized the wearing of turbans in 1986, eventually the Royal Canadian Mounted Police followed in 1988 and eventually other federal government agencies accepted members wearing turbans.

In 2023, the country was scored 3 out of 4 for religious freedom; noting concern with the freedom of religion expression in Quebec society.

History

Before 1800s

thumb|[[St. Paul's Church (Halifax)|St. Paul's Church, Halifax, Nova Scotia, the oldest Anglican church in Canada still standing, built in 1750]]

Before the arrival of Europeans, the Indigenous peoples followed a wide array of mostly animistic religions and spirituality; "including the presence of creation stories, the role of tricksters or of supernatural beings in folklore and the importance of sacred organizations". Common concept is the supernatural world of deities, spirits and wonders, such as the Algonquian manitou.

The first large Protestant communities were formed in the Maritimes after they were conquered by the British. Unable to convince enough British immigrants to go to the region, the government decided to import continental Protestants from Germany and Switzerland to populate the region and counterbalance the Catholic Acadians. This group was known as the Foreign Protestants. This effort proved successful and today the South Shore region of Nova Scotia is still largely Lutheran. After the Expulsion of the Acadians beginning in 1755 a large number of New England Planters settled on the vacated lands bringing with them their Congregationalist belief. During the 1770s, guided by Henry Alline, the New Light movement of the Great Awakening swept through the Atlantic region converting many of the Congregationalists to the new theology. After Alline's death many of these Newlights eventually became Baptists, thus making Maritime Canada the heartland of the Baptist movement in Canada.

The Quebec Act of 1774 acknowledged the rights of the Catholic Church throughout Lower Canada in order to keep the French Canadians loyal to Britannic Crown. Catholicism is still the main religion of French Canadians today.

The American Revolution beginning in 1765 brought a large influx of Protestants to Canada when United Empire Loyalists, fleeing the rebellious United States, moved in large numbers to Upper Canada and the Maritimes.

1800s to 1900s

thumb|upright|[[James Caughey (9 April 1810 – 30 January 1891) was a Methodist minister and evangelist who was active in Canada.]]

While Anglicans consolidated their hold on the upper classes, workingmen and farmers responded to the Methodist revivals, often sponsored by visiting preachers from the United States. Typical was Rev. James Caughey, an American sent by the Wesleyan Methodist Church from the 1840s through 1864. He brought in the converts by the score, most notably in the revivals in Western Canada from 1851 to 1853. His technique combined restrained emotionalism with a clear call for personal commitment, coupled with follow-up action to organize support from converts. It was a time when the holiness movement caught fire, with the revitalized interest of men and women in Christian perfection. Caughey successfully bridged the gap between the style of earlier camp meetings and the needs of more sophisticated Methodist congregations in the emerging cities.

In the early nineteenth century in the Maritimes and Upper Canada, the Anglican Church held the same official position it did in England. This caused tension within English Canada, as much of the populace was not Anglican. Increasing immigration from Scotland created a very large Presbyterian community and they and other groups demanded equal rights. This was an important cause of the 1837 Rebellion in Upper Canada. With the arrival of responsible governments, the Anglican monopoly was ended.

In Lower Canada, the Catholic Church was officially pre-eminent and had a central role in the colony's culture and politics. Unlike English Canada, French Canadian nationalism became very closely associated with Catholicism. During this period, the Catholic Church in the region became one of the most reactionary in the world. Known as Ultramontane Catholicism, the church adopted positions condemning all manifestations of liberalism.

thumb|left|[[Notre-Dame Basilica (Montreal)|Notre-Dame Basilica (Catholic) in Montreal, Quebec]]

In politics, those aligned with the Catholic clergy in Quebec were known as les bleus (the blues). They formed a curious alliance with the staunchly monarchist and pro-British Anglicans of English Canada (often members of the Orange Order) to form the basis of the Canadian Conservative Party. The Reform Party, which later became the Liberal Party, was largely composed of the anti-clerical French Canadians, known as les rouges (the reds) and the non-Anglican Protestant groups. In those times, right before elections, parish priests would give sermons to their flock where they said things like ("the sky (heaven) is blue and hell is red").

In 1871, national census revealed 56.45% as Protestants, 42.80% as Catholic, 0.05% as Pagans, 0.03% as Jewish, 0.02% as Mormons, 0.15% as irreligious and 0.49% as unspecified.

By the late nineteenth century, Protestant pluralism had taken hold in English Canada. While much of the elite were still Anglican, other groups, including the Methodists, had become very prominent as well. The schools and universities created at this time reflected this pluralism with major centres of learning being established for each faith. One, King's College, later the University of Toronto, was set up as a non-denominational school. The influence of the Orange Order was strong, especially among Irish Protestant immigrants, and comprised a powerful anti-Catholic force in Ontario politics; its influence faded away after 1920.

The late nineteenth century also saw the beginning of a large shift in Canadian immigration patterns. Large numbers of Irish and Southern European immigrants were creating new Catholic communities in English Canada. Western Canada saw the arrival of significant Eastern Orthodox immigrants from Eastern Europe as well as Mormon and Pentecostal immigrants from the United States and Ireland.

1900s to 1960s

{|class="wikitable" style="float:right; margin-left:1em;"

|-

!Denomination

!Pop, 1951

!% of total

|-

|Catholic

|align="right"|6,069,496

|align="right"|43.3%

|-

|United Church

|align="right"|2,867,271

|align="right"|20.5%

|-

|Anglican

|align="right"|2,060,720

|align="right"|14.7%

|-

|Presbyterian

|align="right"|781,747

|align="right"|5.6%

|-

|Baptist

|align="right"|519,585

|align="right"|3.7%

|-

|Lutheran

|align="right"|444,923

|align="right"|3.2%

|-

|Jewish

|align="right"|204,836

|align="right"|1.5%

|-

|Ukrainian (Greek) Catholic

|align="right"|190,831

|align="right"|1.4%

|-

|Greek Orthodox

|align="right"|172,271

|align="right"|1.2%

|-

|Mennonite

|align="right"|125,938

|align="right"|0.9%

|-

|Pentecostal

|align="right"|95,131

|align="right"|0.7%

|-

|Salvation Army

|align="right"|70,275

|align="right"|0.5%

|-

|Evangelical

|align="right"|50,900

|align="right"|0.4%

|-

|Jehovah's Witnesses

|align="right"|34,596

|align="right"|0.2%

|-

|Mormon

|align="right"|32,888

|align="right"|0.2%

|-

|No religion

|align="right"|59,679

|align="right"|0.4%

|-

|Other/not recorded

|align="right"|260,625

|align="right"|1.9%

|}

In 1919–20 Canada's five major Protestant denominations (Anglican, Baptist, Congregational, Methodist, and Presbyterian) cooperatively undertook the "Forward Movement." The goal was to raise funds and to strengthen Christian spirituality in Canada. The movement invoked Anglophone nationalism by linking donations with the Victory Loan campaigns of the First World War, and stressed the need for funds to Canadianize immigrants. Centred in Ontario, the campaign was a clear financial success, raising over $11 million. However the campaign exposed deep divisions among Protestants, with the traditional Evangelists speaking of a personal relationship with God and the more liberal denominations emphasizing the Social Gospel and good works. Both factions (apart from the Anglicans) agreed on prohibition, which was demanded by the WCTU.

As of 1931, Catholics were the largest religious body in Canada, with 4 million people. Following it were the United Church of Canada (including Methodists, Congregationalists and Presbyterians), with 2 million; the Anglican Church, with nearly 2 million; and the Presbyterian Church, with approximately 870,000. The Canada Year Book 1936 reported that "of the non-Christian sects, 155,614 or 1.50% were Jews, 24,087 or 0.23% were Confucians, 15,784 or 0.15% were Buddhists and 5,008 or 0.05% were pagans.

Domination of Canadian society by Protestant and Catholic elements continued until well into the 20th century. Until the 1960s, most parts of Canada still had extensive Lord's Day laws that limited what one could do on a Sunday. The English Canadian elite were still dominated by Protestants, and Jews and Catholics were often excluded. A slow process of liberalization began after the Second World War in English Canada. Overtly Christian laws were expunged, including those against homosexuality. Policies favouring Christian immigration were also abolished.

In 1951, a nationwide census was taken after incorporation of predominantly Protestant province of Newfoundland and Labrador.

According to statistics provided by Statistics Canada, Protestants held a slight majority in the country between 1871 and 1961. Despite Canada's large Catholic population, this fact is confirmed by nine consecutive national censuses. By 1961, Catholics overtook Protestants as the most numerous religious group, although—unlike Protestants—they never reached the absolute majority status (>50%). While the majority of Québécois are still professed Latin Church Catholics, rates of church attendance have decreased dramatically. Since then, common-law relationships, abortion, and support for same-sex marriage are much more common in Quebec than previously, exceeding levels in some other areas of Canada.

thumb|left|Inauguration of United Church at Mutual Street Arena, [[Toronto, on June 10, 1925]]

English Canada also underwent secularization. The United Church of Canada, the country's largest Protestant denomination, became one of the most liberal major Protestant churches in the world. Flatt argues that in the 1960s Canada's rapid cultural changes led the United Church to end its evangelical programs and change its identity. It made revolutionary changes in its evangelistic campaigns, educational programs, moral stances, and theological image. However, membership declined sharply as the United Church affirmed a commitment to gay rights including marriage and ordination, and to the ordination of women.

In 1971, Canada was 47% Catholic, 41% Protestant, 4% other religion and 4% unaffiliated.

Meanwhile, a strong current of evangelical Protestantism emerged. The largest groups are found in the Atlantic provinces and Western Canada, particularly in Alberta, Southern Manitoba and the Southern interior and Fraser Valley region of British Columbia, also known as the "Canadian Bible Belt", as well as parts of Ontario outside the Greater Toronto Area. The social environment is more conservative, somewhat more in line with that of the Midwestern and Southern United States, and same-sex marriage, abortion, and common-law relationships are less widely accepted. The evangelical movement has grown sharply after 1960, and increasingly influences public policy. Nevertheless, the overall proportion of evangelicals in Canada remains considerably lower than in the United States, and the polarization much less intense. There are very few evangelicals in Quebec and in the largest urban areas, which are generally secular, although there are several congregations above 1000 members in most large cities.

Indigenous residential school system

thumb|right|Study period at a [[Roman Catholic|Catholic Indian Residential School in Fort Resolution, NWT| alt=Indigenous children working at long desks]]

Administered by various Christian churches and funded by the Canadian government from 1828 to 1997 Canadian Indian residential school system attempted to assimilate Indigenous children into Euro-Canadian culture. The residential school system was established by Christian missionaries with the express purpose of converting Indigenous children to Christianity, schools often had nearby mission where possible graves of hundreds of Indigenous people were discovered. A period of redress began with the formation of the Truth and Reconciliation Commission of Canada by the Government of Canada in 2008. This included recognition of past colonial genocide and settlement agreements. In October 2022, the Canadian House of Commons unanimously passed a motion calling on the federal Canadian government to recognize the residential school system as genocide. This acknowledgment was followed by a visit by Pope Francis who apologized for Church members' role in what he labelled the "oppression, mistreatment and cultural genocide of indigenous people".

Abrahamic religions

Christianity

{| class="wikitable sortable"style="margin-left: auto; margin-right: auto; float: right;"

|-

! Province/Territory<br /> !! Christians

|-

| || 82.44%

|-

| || 73.53%

|-

| || 67.62%

|-

| || 67.52%

|-

| || 64.82%

|-

| || 58.18%

|-

| || 56.31%

|-

| || 54.23%

|-

| || 55.16%

|-

| style="background:silver" | || style="background:silver" | 53.33%

|-

| || 52.14%

|-

| || 48.11%

|-

| || 35.01%

|-

| || 34.27%

|}

The majority of Canadian Christians attend church services infrequently. Cross-national surveys of religiosity rates such as the Pew Global Attitudes Project indicate that, on average, Canadian Christians are less observant than those of the United States but are still more overtly religious than their counterparts in Western Europe. In 2002, 30% of Canadians reported to Pew researchers that religion was "very important" to them. A 2005 Gallup poll showed that 28% of Canadians consider religion to be "very important" (55% of Americans and 19% of Britons say the same). Regional differences within Canada exist, however, with British Columbia and Quebec reporting especially low metrics of traditional religious observance, as well as a significant urban-rural divide, while Saskatchewan and rural Alberta saw high rates of religious attendance. The rates for weekly church attendance are contested, with estimates running as low as 11% as per the latest Ipsos-Reid poll and as high as 25% as per Christianity Today magazine. This American magazine reported that three polls conducted by Focus on the Family, Time Canada and the Vanier Institute of the Family showed church attendance increasing for the first time in a generation, with weekly attendance at 25 per cent. This number is similar to the statistics reported by premier Canadian sociologist of religion, Prof. Reginald Bibby of the University of Lethbridge, who has been studying Canadian religious patterns since 1975. Although lower than in the US, which has reported weekly church attendance at about 40% since the Second World War, weekly church attendance rates are higher than those in Northern Europe.