Christianity in Australia

Christianity is the largest religion in Australia, with a total of 43.9% of the Australian population identifying with a Christian denomination in the 2021 census. The first presence of Christianity in Australia began with British colonisation in what came to be known as New South Wales in 1788.

The Christian footprint in Australian society and culture remains broad, particularly in areas of social welfare and education provision and in the marking of festivals such as Easter and Christmas. Though the Australian Constitution of 1901 protects freedom of religion and separation of church and state, the Church of England held legal privileges in the early British colonial period, when Catholicism in particular was suppressed. Sectarianism was a feature of Australian politics well into the 20th century, as was collaboration by church and state in seeking the conversion of the Indigenous population to Christianity. Today, the Catholic Church is second only to government itself as a provider of government-funded social services, through organisations such as Catholic Social Services Australia and the St Vincent De Paul Society. The Anglican Church's Anglicare network is similarly engaged in areas such as emergency relief, aged care, family support service and help for the homeless. Other denominations assist through networks like UnitingCare Australia and the Salvation Army, and around a quarter of students attend church owned schools.

Historically significant Australian Christians have included the Reverend John Dunmore Lang, Saint Mary MacKillop, Catherine Helen Spence, Pastor David Unaipon, the Reverend John Flynn, Pastor Sir Doug Nicholls and General Eva Evelyn Burrows of the Salvation Army. High-profile contemporary Australian Christians include Tim Costello; Baptist minister and current CEO of World Vision Australia; Frank Brennan, Jesuit human rights lawyer; John Dickson, historian and founder of The Centre for Public Christianity; Phillip Aspinall the current archbishop of Brisbane, Philip Freier the former Anglican primate of Australia and archbishop of Melbourne; and recent prime ministers John Howard, Kevin Rudd, Tony Abbott and Scott Morrison.