What is the most widely practiced religion in Australia and New Zealand?

Christianity is the most widely practiced religion in both Australia and New Zealand.

In Australia, Christianity is the religion with the largest number of adherents, with 52.1% of the population identifying as Christian in the 2021 census. The largest Christian denominations in Australia are Catholicism, Anglicanism, and Uniting Church.

In New Zealand, Christianity is also the most widely practiced religion, with 55.3% of the population identifying as Christian in the 2018 census. The largest Christian denominations in New Zealand are Catholicism, Anglicanism, and Presbyterianism.