List of Christian denominations by number of members

largest Christian churchlargest denominationall Christian denominationsbelowlargest particular churchsecond-largest Christian churchsecond-largest formthird largestthough the Greek Old Calendarists and True Orthodox Russians are often cited at 1.7-2 million together.Wikipedia page on denomination sizes
This is a list of Christian denominations by number of members.wikipedia
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Catholic Church

Roman CatholicCatholicRoman Catholic Church
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 0.2 million members; the provinces of the Anglican Communion with at least 0.2 million members; all the other Christian branches with distinct theologies, such as Restorationist and Nontrinitarianian denominations; the independent Catholic denominations; and the Church of the East.
The Catholic Church, also known as the Roman Catholic Church, is the largest Christian church, with approximately 1.3 billion baptised Catholics worldwide.

Eastern Orthodox Church

Eastern OrthodoxOrthodoxOrthodox Church
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 0.2 million members; the provinces of the Anglican Communion with at least 0.2 million members; all the other Christian branches with distinct theologies, such as Restorationist and Nontrinitarianian denominations; the independent Catholic denominations; and the Church of the East.
The Eastern Orthodox Church, officially the Orthodox Catholic Church, is the second-largest Christian church, with approximately 260 million baptised members.

Protestantism

ProtestantProtestantsProtestant church
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 0.2 million members; the provinces of the Anglican Communion with at least 0.2 million members; all the other Christian branches with distinct theologies, such as Restorationist and Nontrinitarianian denominations; the independent Catholic denominations; and the Church of the East.
Protestantism is the second-largest form of Christianity with collectively between 800 million and more than 900 million adherents worldwide or nearly 40% of all Christians.

Anglican Communion

AnglicanAnglican ChurchAnglicans
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 0.2 million members; the provinces of the Anglican Communion with at least 0.2 million members; all the other Christian branches with distinct theologies, such as Restorationist and Nontrinitarianian denominations; the independent Catholic denominations; and the Church of the East.
The Anglican Communion is the third largest Christian communion.

Latin Church

Latin CatholicWestern ChurchLatin Rite
;Latin Church – 1.295 billion
With approximately 1.255 billion members (2015), the Latin Church remains by far the largest particular church not only in the Catholic Church or Western Christianity, but in all Christianity.

United Methodist Church

United MethodistMethodistThe United Methodist Church
With at least 12 million members as of 2014, the UMC is the largest denomination within the wider Methodist movement of approximately 80 million people across the world.

Christian denomination

denominationdenominationsChristian denominations
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 0.2 million members; the provinces of the Anglican Communion with at least 0.2 million members; all the other Christian branches with distinct theologies, such as Restorationist and Nontrinitarianian denominations; the independent Catholic denominations; and the Church of the East.

Church of the Lord (Aladura)

Church of the LordAladura ChurchChurch of Aladura

List of the largest Protestant denominations

List of the largest Protestant bodiesProtestant denominationsList of the largest Protestant churches of the world

Eastern Catholic Churches

Eastern CatholicUniateEastern Catholic Church
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 0.2 million members; the provinces of the Anglican Communion with at least 0.2 million members; all the other Christian branches with distinct theologies, such as Restorationist and Nontrinitarianian denominations; the independent Catholic denominations; and the Church of the East.

Oriental Orthodox Churches

Oriental OrthodoxOriental OrthodoxyOriental Orthodox Church
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 0.2 million members; the provinces of the Anglican Communion with at least 0.2 million members; all the other Christian branches with distinct theologies, such as Restorationist and Nontrinitarianian denominations; the independent Catholic denominations; and the Church of the East.

Restorationism

RestorationistrestorationRestorationism (Christian primitivism)
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 0.2 million members; the provinces of the Anglican Communion with at least 0.2 million members; all the other Christian branches with distinct theologies, such as Restorationist and Nontrinitarianian denominations; the independent Catholic denominations; and the Church of the East.

Nontrinitarianism

nontrinitariananti-Trinitarianantitrinitarian
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 0.2 million members; the provinces of the Anglican Communion with at least 0.2 million members; all the other Christian branches with distinct theologies, such as Restorationist and Nontrinitarianian denominations; the independent Catholic denominations; and the Church of the East.

List of independent Catholic denominations

List of Old Catholic ChurchesIndependent Catholic denominationsindependent Catholic
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 0.2 million members; the provinces of the Anglican Communion with at least 0.2 million members; all the other Christian branches with distinct theologies, such as Restorationist and Nontrinitarianian denominations; the independent Catholic denominations; and the Church of the East.

Church of the East

NestorianNestorian ChurchNestorians
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 0.2 million members; the provinces of the Anglican Communion with at least 0.2 million members; all the other Christian branches with distinct theologies, such as Restorationist and Nontrinitarianian denominations; the independent Catholic denominations; and the Church of the East.

Major religious groups

world religionsmajor world religionsmajor religions
With about 2.42 billion adherents all over the world, Christianity is the largest religious group in the world.

Annuario Pontificio

Pontifical Yearbook
Figures below are in accordance with the Annuario Pontificio, at 2017.

Ukrainian Greek Catholic Church

Ukrainian Greek CatholicUkrainian CatholicUkrainian Catholic Church