List of Christian denominations by number of members

This article gives information about the relative size of denominations, based mainly on claims by the churches themselves.

## Christian denominational families
## Christianity – 2.51 billion
### Catholicism – 1.329 billion
 by population percentage.]]

Catholicism is the largest branch of Christianity with 1.329 billion and the Catholic Church is the largest among churches. Figures below are in accordance with the *Annuario Pontificio*, at 2018.
* Byzantine Rite – 8.2 million
**Ukrainian Greek Catholic Church – 5.5 million
** Melkite Greek Catholic Church – 1.6 million
** Albanian Greek Catholic Church – 0.01 million
** Russian Greek Catholic Church – 0.01 million
** Macedonian Greek Catholic Church – 0.001 million
** Bulgarian Greek Catholic Church – 0.001 million

;Canonically irregular groups
* Society of Saint Pius X – 1 million (claimed)

#### Independent Catholicism – 18 million
Various denominations self-identifying as Catholic, despite not being affiliated with the Catholic Church.

* Philippine Independent Church – 6 million (Part of the Anglican Communion)
* Chinese Patriotic Catholic Association – 6 million
* Brazilian Catholic Apostolic Church – 5 million
* Traditionalist Mexican-American Catholic Church – 2 million
* Old Catholic Church – 0.1 million 
* Polish National Catholic Church – 0.03 million
* Apostolic Catholic Church – 0.005 million
* Palmarian Catholic Church – 0.002 million

### Protestantism – 900 million
 by population percentage.]]

Protestantism is the second largest major group of Christians by number of followers. Estimates vary from 600 million to a billion, or nearly 24%-40% of all Christians. The main reason for this wide range is the lack of a common agreement among scholars as to which denominations constitute Protestantism. For instance, most sources but not all include Anabaptism, Anglicanism, Baptists and Independent Nondenominational Christianity as part of Protestantism. Moreover, Protestant denominations altogether do not form a single structure comparable to the Catholic Church, or to a lesser extent the Eastern Orthodox Communion. However, several different comparable communions exist within Protestantism, such as the Anglican Communion, World Communion of Reformed Churches, World Baptist Alliance, World Methodist Council and the World Lutheran Federation. Regardless, 900 million is the most accepted figure among various authors and scholars, and thus is used in this article. Note that this 900 million figure also includes Anglicanism, as well as Anabaptists, Baptists and multiple other groups that might sometimes disavow a common "Protestant" designation, and would rather prefer to be called, simply, "Christian". mostly part of the Anglican Communion, the third largest Christian denomination in the world.
*Anglican Communion – 85 million
** Church of England – 25.0 million
** Church of Nigeria – 20.1 million
** Church of Uganda – 11.1 million
** Anglican Church of Kenya – 5.0 million
** Episcopal Church of South Sudan and Sudan – 4.5 million
** Church of South India – 3.8 million
** Anglican Church of Australia – 3.1 million
** Anglican Church of Southern Africa – 2.3 million
** Anglican Church of Tanzania – 2.0 million
** Episcopal Church in the United States – 1.8 million
** Church of North India – 1.5 million
** Anglican Church of Rwanda – 1.0 million
** Church of the Province of Central Africa – 0.9 million
** Anglican Church of Burundi – 0.8 million
** Church in the Province of the West Indies – 0.8 million
** Anglican Church in Aotearoa, New Zealand and Polynesia – 0.5 million
** Church of the Province of the Indian Ocean – 0.5 million
** Church of Christ in Congo–Anglican Community of Congo – 0.5 million
** Church of Pakistan – 0.5 million
** Church of Ireland – 0.4 million
** Anglican Church of Canada – 0.4 million
** Church of the Province of West Africa – 0.3 million
** Anglican Church of Melanesia – 0.2 million
** Episcopal Church in the Philippines – 0.1 million
*Continuing Anglican movement and independent churches – 0.4 million
** Traditional Anglican Communion – 0.4 million
** Anglican Church in North America – 0.09 million
** Reformed Evangelical Anglican Church of South Africa – 0.09 million

##### Baptist churches – 75–105 million
The number of individuals who hold membership in the Baptist denomination totals to 75-105 million, being represented in the following Churches:
*Southern Baptist Convention – 14.5 million
* National Baptist Convention, USA, Inc. – 7.5 million
* Nigerian Baptist Convention – 6.5 million
* National Missionary Baptist Convention of America – 3.1 million
* National Baptist Convention of America, Inc. – 3.1 million
* Lott Carey Foreign Mission Convention – 1.1 million
* National Association of Free Will Baptists – 0.2 million
* Convention of Visayas and Mindanao of Southern Baptist Churches – 0.2 million
* Seventh Day Baptists – 0.05 million

##### Lutheranism – 70–90 million
The number of adherents in the Lutheran denomination totals to 70-90 million persons, being represented in the following Churches:
*Evangelical Church in Germany – 21.1 million (10.5 million United Protestants, i.e. Lutheran & Reformed; 10.3 million Lutherans; 0.3 million Reformed)
* Ethiopian Evangelical Church Mekane Yesus – 8.3 million
* Evangelical Lutheran Church in Tanzania – 6.5 million
* Church of Sweden – 5.8 million
* United Evangelical Lutheran Churches in India – 4.5 million
* Church of Denmark – 4.3 million
* Batak Christian Protestant Church – 4.0 million
* Evangelical Lutheran Church of Finland – 3.8 million
* Church of Norway – 3.7 million
* Evangelical Lutheran Church in America – 3.4 million
* Malagasy Lutheran Church – 3.0 million
* The Lutheran Church of Christ in Nigeria – 2.2 million
* Lutheran Church–Missouri Synod – 2.0 million
* Evangelical Lutheran Church of Papua New Guinea – 1.2 million
* Evangelical Lutheran Church in Namibia – 0.7 million
* Evangelical Church of the Lutheran Confession in Brazil – 0.6 million
* Evangelical Lutheran Church in Southern Africa – 0.6 million
* The Protestant Christian Church – 0.5 million
* Evangelical Free Church of America – 0.4 million
* The Indonesian Christian Church – 0.3 million
* Evangelical Lutheran Church of Cameroon – 0.3 million
* Evangelical Church of the Augsburg Confession in Austria – 0.3 million
* Evangelical Lutheran Church in Zimbabwe – 0.3 million
* Evangelical Lutheran Church of Latvia – 0.3 million
* Christian Protestant Church in Indonesia – 0.3 million
* Simalungun Protestant Christian Church – 0.2 million
* Protestant Church of Augsburg Confession of Alsace and Lorraine – 0.2 million
* Evangelical Church of the Augsburg Confession in Slovakia – 0.2 million
* Evangelical-Lutheran Church in Hungary – 0.2 million
* Estonian Evangelical Lutheran Church – 0.2 million

##### Reformed churches (Calvinism) – 60–80 million
The Reformed tradition is represented by 60-80 million people who hold membership in the following Churches:
*Presbyterianism – 40 million
**Presbyterian Church of East Africa – 4.0 million
** Presbyterian Church of Nigeria – 3.8 million
** Presbyterian Church of Africa – 3.4 million
** National Presbyterian Church in Mexico – 2.8 million
** Presbyterian Church in Korea (HapDong) – 2.6 million
** Presbyterian Church of Korea (TongHap) – 2.5 million
** Church of Christ in Congo–Presbyterian Community of Congo – 2.5 million
** Presbyterian Church of Cameroon – 1.8 million
** Presbyterian Church in Korea (BaekSeok) – 1.5 million
** Presbyterian Church (USA) – 1.4 million
** Presbyterian Church of India – 1.3 million
** Church of Central Africa Presbyterian – 1.3 million
** Presbyterian Church of Ghana – 1.0 million
** Presbyterian Church in Cameroon – 0.7 million
** Presbyterian Church of Brazil – 0.7 million
** Evangelical Presbyterian Church, Ghana – 0.6 million
** United Church of Christ in the Philippines – 0.5 million
** Uniting Presbyterian Church in Southern Africa – 0.5 million
** United Church of Canada – 0.4 million
** Presbyterian Church in America – 0.4 million
** Presbyterian Church of Pakistan – 0.4 million
** Presbyterian Church in Korea (Koshin) – 0.4 million
** Church of Scotland – 0.3 million
** Korean Presbyterian Church – 0.3 million
** Presbyterian Church in Rwanda – 0.3 million
** Uniting Church in Australia – 0.2 million
** Presbyterian Church in Taiwan – 0.2 million
** Presbyterian Church in Ireland – 0.2 million
* Continental Reformed churches – 30 million
**Church of Jesus Christ in Madagascar – 3.5 million
** Protestant Church in Indonesia – 3.1 million
** United Church in Zambia – 3.0 million
** Evangelical Church of Cameroon – 2.5 million
** Swiss Reformed Church – 2.4 million
** Christian Evangelical Church in Timor – 2.0 million
** Protestant Church in the Netherlands – 1.8 million
** Dutch Reformed Church in South Africa (NGK) – 1.1 million
** Christian Evangelical Church in Minahasa – 0.7 million
** United Church in Papua New Guinea and the Solomon Islands – 0.6 million
** Protestant Church in Western Indonesia – 0.6 million
** Evangelical Christian Church in Tanah Papua – 0.6 million
** Protestant Church of Maluku – 0.6 million
** Reformed Church in Hungary – 0.6 million
** Reformed Church in Romania – 0.6 million
** Uniting Reformed Church in Southern Africa – 0.5 million
** Toraja Church – 0.4 million
** Reformed Church of France – 0.4 million
** Lesotho Evangelical Church – 0.3 million
** Evangelical Christian Church in Halmahera – 0.3 million
** Christian Church of Sumba – 0.3 million
** Karo Batak Protestant Church – 0.3 million
** Christian Reformed Church of Nigeria – 0.3 million
** Reformed Church in Zambia – 0.3 million
** Evangelical Reformed Church in Angola – 0.2 million
** Reformed Church in America – 0.2 million
** Christian Reformed Church in North America – 0.2 million
** Kalimantan Evangelical Church – 0.2 million
** Javanese Christian Church – 0.2 million
** Indonesia Christian Church – 0.2 million
** Church of Christ in the Sudan Among the Tiv – 0.2 million
** Church of Lippe – 0.2 million
** Evangelical Church of Congo – 0.2 million
** Christian Evangelical Church of Sangihe Talaud – 0.2 million
** Central Sulawesi Christian Church – 0.2 million
** Evangelical Reformed Church in Bavaria and Northwestern Germany – 0.2 million
* Congregationalism – 5 million
**Evangelical Congregational Church in Angola – 0.9 million
** United Church of Christ – 0.8 million
** United Congregational Church of Southern Africa – 0.5 million

##### Methodism – 60–80 million
The number of members in the Methodist denomination totals to 60-80 million people, being represented in the following Churches:
*United Methodist Church – 12 million
* African Methodist Episcopal Church – 2.5 million
* Church of the Nazarene – 2 million
* Methodist Church Nigeria – 2 million
* The Salvation Army – 1.8 million
* Methodist Church of Southern Africa – 1.7 million
* Korean Methodist Church – 1.5 million
* African Methodist Episcopal Zion Church – 1.4 million
* United Methodist Church of Ivory Coast – 1 million
* Free Methodist Church – 0.9 million
* Christian Methodist Episcopal Church – 0.9 million
* Methodist Church Ghana – 0.8 million
* Methodist Church in India – 0.6 million
* Methodist Church in Kenya – 0.5 million
* Wesleyan Church – 0.4 million
* Methodist Church of Great Britain – 0.2 million
* Methodist Church in Brazil – 0.2 million

##### Seventh-day Adventist Church – 22.8 million 
The Seventh-day Adventist Church has a membership of 22.8 million people.

##### Restoration Movement – 7 million
*Churches of Christ – 5 million
* Churches of Christ in Australia – 0.05 million
* Christian churches and churches of Christ – 1.1 million
* Christian Church (Disciples of Christ) – 0.4 million

##### Anabaptism – 4 million
*Mennonites – 2.1 million
* Schwarzenau Brethren (German Baptists) – 1.5 million
* Amish – 0.3 million
* Hutterites – 0.05 million

##### Plymouth Brethren – 1 million
The Plymouth Brethren number around 1 million members.

##### Hussites – 1 million
* Moravians – 0.825 million
* Czechoslovak Hussite Church – 0.14 million
* Unity of the Brethren – 0.035 million

##### Quakers – 0.4 million
#### Modern Protestantism – 400–500 million
The denominations listed below did not emerge from the Protestant Reformation of the 16th century or its commonly acknowledged offshoots. Instead, they are broadly linked to Pentecostalism or similar other independent evangelical and revivalistic movements that originated in the beginning of the 20th century. For this reason, several sources tend to differentiate them from Protestants and classify them as together as Independents, Non-core Protestants etc. Also included in this category are the numerous, yet very similar Nondenominational churches. Nonetheless, sources eventually combine their numbers to the Protestant tally. According to the Center for the Study of Global Christianity (CSGC), there are an estimated 450 million Independents world-wide, as of mid-2019.

##### Pentecostalism – 280 million
Those who are members of the Pentecostal denomination number around 280 million people.
* Apostolic Church – 15 million
* International Circle of Faith – 11 million
* Fangcheng Fellowship – 10 million
* China Gospel Fellowship – 10 million
* Church of God (Cleveland, Tennessee) – 6 million
* International Church of the Foursquare Gospel – 9 million
* Church of God in Christ – 6.5 million
* Jesus Is Lord Church Worldwide – 5 million
* International Pentecostal Holiness Church – 4 million
*The Pentecostal Mission – 2.5 million
*Christian Congregation of Brazil – 2.5 million
*True Jesus Church – 2.5 million
*The Church of Pentecost – 2.1 million
*Universal Church of the Kingdom of God – 2 million
*Apostolic Faith Mission of South Africa – 1.2 million
*Church of God of Prophecy – 1.5 million
* Association of Pentecostal Churches of Rwanda – 1 million
*God is Love Pentecostal Church – 0.8 million
*Association of Vineyard Churches – 0.3 million

##### Nondenominational Christianity – 80–100 million
*Calvary Chapel – 25 million
*Christian and Missionary Alliance – 6 million
* Born Again Movement – 3 million
*Church of God (Anderson, Indiana) – 1.2 million

##### African initiated churches – 60 million
60 million people are members of African initiated churches.
*Zion Christian Church – 15 million
* Eternal Sacred Order of Cherubim and Seraphim – 10 million
* Kimbanguist Church – 5.5 million
* Redeemed Christian Church of God – 5 million
* Church of the Lord (Aladura) – 3.6 million
* Council of African Instituted Churches – 3 million
* Church of Christ Light of the Holy Spirit – 1.4 million
* African Church of the Holy Spirit – 0.7 million
* African Israel Church Nineveh – 0.5 million

=====Chinese Patriotic Christian Churches – 38 million

##### Local churches – 1 to 10 million
### Eastern Orthodoxy – 230 million
 by population percentage.]]

The best estimate of the number of Eastern Orthodox Christians is 210–230 million or 80% of all Orthodox Christians worldwide. Its main body consists of the various autocephalous churches along with the autonomous and other churches canonically linked to them, for the most part form a single communion, making the Eastern Orthodox Church the second largest single denomination behind the Catholic Church. In addition, there are several Eastern Orthodox splinter groups and non-universally recognized churches.

;Autocephalous churches – 166 million
* Russian Orthodox Church – 100 million
*Romanian Orthodox Church – 17–18.8 million
* Greek Orthodox Church– 10 million
* Albanian Orthodox Church – 0.4 million
* Metropolitan Church of Chișinău and All Moldova (Moscow Patriarchate) – 3.2 million
* Russian Orthodox Church Outside Russia – 0.4 million
* Metropolitan Church of Bessarabia (Moldova) (Romanian Patriarchate) – 0.72 million
* Orthodox Ohrid Archbishopric (North Macedonia) – 0.34 million
* Estonian Orthodox Church (Moscow Patriarchate) – 0.3 million
* Finnish Orthodox Church (Ecumenical Patriarchate) – 0.06 million
;Autocephalous churches – 61.7 million
* Ethiopian Orthodox Tewahedo Church – 37 million
* Coptic Orthodox Church of Alexandria – 10 million
* Armenian Apostolic Church – 9 million
**Mother See of Holy Etchmiadzin – 6 million
** Holy See of Cilicia – 1.5 million
** Armenian Patriarchate of Constantinople – 0.5–0.7 million
** Armenian Patriarchate of Jerusalem – 0.34 million
* Syriac Orthodox Church – 1.7 million
**Jacobite Syrian Christian Church – 1.2 million
* Eritrean Orthodox Tewahedo Church – 2 million
* Malankara Orthodox Syrian Church – 2 million

;Autonomous churches – 0.01 million
* French Coptic Orthodox Church – 0.01 million

;Churches not in communion – 0.07 million
* Malabar Independent Syrian Church – 0.06 million
* British Orthodox Church – 0.01 million

### Non-trinitarian Restorationism – 35 million
A sixth group is composed by Non-trinitarian Restorationists. These groups are quite distinct from orthodox Trinitarian restorationist groups such as the Disciples of Christ, despite some shared history.
;Latter Day Saint movement (Mormonism) – 16.7 million
* The Church of Jesus Christ of Latter-day Saints – 16.5 million
* Community of Christ – 0.25 million

;Jehovah's Witnesses – 8.5 million

;Oneness Pentecostalism – 6 million
* United Pentecostal Church International – 4 million
* Pentecostal Assemblies of the World – 1.5 million

;Minor denominations – 4.4 million
* Iglesia ni Cristo – 2.3 million
* The Unification Church (aka Moonies) – 1–2 million
* La Luz del Mundo – around million (See La Luz del Mundo#Statistics)
* Unitarian Universalism – 0.6 million
**Unitarian Universalist Association – 0.2 million(Unitarian Universalism developed out of Christian traditions but no longer identifies as a Christian denomination.)
* Church of Christ, Scientist – 0.4 million
* Friends of Man – 0.07 million
* Christadelphians – 0.06 million
* Family International – 0.01 million

### Miscellaneous branches – 2 million
;Protestant Eastern Christianity – 1.1 million
* Mar Thoma Syrian Church – 1.1 million

;Former Church of the East (Nestorianism) – 0.6 million
* Assyrian Church of the East – 0.5 million
* Ancient Church of the East – 0.1 million

;Messianic Judaism – 0.3 million

## References 
## Other websites 
* Adherents.com 
* Yearbook of American and Canadian Churches 
* National Council of Churches USA 
* Pew Research Center