Christianity – 2.51 billionCatholicism – 1.329 billionIndependent Catholicism – 18 millionProtestantism – 900 millionHistorical Protestantism – 300–400 millionAnglicanism – 110 millionBaptist churches – 75–105 millionLutheranism – 70–90 millionReformed churches (Calvinism) – 60–80 millionMethodism – 60–80 millionSeventh-day Adventist Church – 21.4 millionRestoration Movement – 7 millionAnabaptism – 4 millionPlymouth Brethren –...

The list includes the following Christian denominations: the Catholic Church including the Eastern Catholic Churches, all the Eastern Orthodox and Oriental Orthodox churches with some recognition and their offshoots, Protestant denominations with at least 200,000 members, all the other Christian branches with distinct theologies (such as Restorationist and Nontrinitarian denominations), the independent Catholic denominations,...