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Catholicism - 1.2 billion[edit]

A map of Catholicism by population percentage.Catholic Church - 1,166 million[1] Latin Church - 1,149 million
Eastern Catholic Churches - 17 million Alexandrian Rite Ethiopian Catholic Church - 0.2 million[2]
Coptic Catholic Church - 0.2 million[2]

Antiochene Rite Maronite Catholic Church - 3.1 million[2]
Syro-Malankara Catholic Church - 0.4 million[2]
Syriac Catholic Church - 0.1 million[2]

Armenian Rite Armenian Catholic Church - 0.4 million[2]

Chaldean Rite Syro-Malabar Catholic Church - 3.8 million[2]
Chaldean Catholic Church - 0.4 million[2]

Byzantine Rite Ukrainian Greek Catholic Church - 4.3 million[2]
Melkite Greek Catholic Church - 1.3 million[2]
Romanian Catholic Church - 0.7 million[2]
Ruthenian Catholic Church - 0.5 million[2]
Hungarian Greek Catholic Church - 0.3 million[2]
Slovak Greek Catholic Church - 0.2 million[2]
Italo-Albanian Catholic Church - 0.1 million[2]
Belarusian Greek Catholic Church - 0.1 million[2]
Georgian Byzantine Catholic Church - 0.01 million[3]
Albanian Byzantine Catholic Church - 0.01 million[2]
Bulgarian Greek Catholic Church - 0.01 million[2]
Croatian Greek Catholic Church - 0.01 million[2]
Greek Byzantine Catholic Church - 0.01 million[2]
Macedonian Greek Catholic Church - 0.01 million[2]
Russian Greek Catholic Church - 0.01 million[2]

Breakaway Catholic Churches - 25 million
Gnome-searchtool.svg This section’s factual accuracy is disputed. (November 2012)
Philippine Independent Church - 6 million[4]
Chinese Patriotic Catholic Association - 5 million[5]
Brazilian Catholic Apostolic Church - 5 million[6]
Apostolic Catholic Church - 5 million
Old Catholic Church - 0.6 million
Society of St. Pius X - 0.5 million
Polish National Catholic Church - 0.025 million

Protestantism - 800 million[edit]

A map of Protestantism (including Anglicanism) by population percentage.
Estimates of the total number of Protestants are very uncertain, partly because of the difficulty in determining which denominations should be placed in the category. It seems however clear that Protestantism is the second largest major group of Christians after Catholicism by number of followers. Often that number is put at 800 million.[7] Some sources, which put the number at 800 million, include also Anglicanism (see below) within Protestantism.[8][9] However, Protestant denominations in the world differ vastly to slightly theologically and do not form a single communion.
Historical Protestantism - 330 million Baptist churches - 100 million[10] Southern Baptist Convention - 16.3 million[11]
National Baptist Convention, USA, Inc. - 8.5 million[12]
National Baptist Convention of America, Inc. - 3.1 million[12]
Nigerian Baptist Convention - 2.5 million[12]
Progressive National Baptist Convention - 2.5 million[12]
Baptist General Convention of Texas - 2.3 million[12]
Baptist Union of Uganda - 1.5 million[12]
American Baptist Churches USA - 1.4 million[12]
Brazilian Baptist Convention - 1.3 million[12]
Baptist Bible Fellowship International - 1.2 million[13]
Baptist Community of the Congo River - 1 million[12]
National Primitive Baptist Convention of the U.S.A. - 1 million[13]
National Missionary Baptist Convention of America - 1 million
Myanmar Baptist Convention - 0.9 million[12]
Samavesam of Telugu Baptist Churches - 0.8 million[14]
Korea Baptist Convention - 0.8 million[12]
Baptist Convention of Kenya - 0.8 million[12]
Council of Baptist Churches in Northeast India - 0.6 million[15]
Cooperative Baptist Fellowship - 0.5 million[12]
Nagaland Baptist Church Council - 0.5 million[12]
Baptist Convention in Tanzania - 0.5 million[12]
Orissa Evangelical Baptist Crusade - 0.5 million[12]
Baptist General Association of Virginia - 0.5 million[12]
National Baptist Convention (Brazil) - 0.4 million[12]
Church of Christ in Congo–Baptist Community of Congo - 0.4 million[16]
Convention of Philippine Baptist Churches - 0.3[12]
American Baptist Association - 0.3 million[17]
Union of Baptist Churches in Rwanda - 0.3 million[12]
Association of Baptist Churches in Rwanda - 0.3 million[12]
Garo Baptist Convention - 0.2 million[12]
Baptist Community of Western Congo - 0.2 million[12]
Baptist Missionary Association of America - 0.2 million[18]
Conservative Baptist Association of America - 0.2 million[19]
National Association of Free Will Baptists - 0.2 million[20]
Canadian Baptist Ministries - 0.2 million[12]
National Baptist Convention of Mexico - 0.2 million[12]
Manipur Baptist Convention - 0.2 million[12]
Convention of Baptist Churches of the Northern Circars - 0.2 million[12]
Baptist Community in Central Africa - 0.2 million[12]
Baptist Convention of Malawi - 0.2 million[12]

Lutheranism - 75 million[21] Evangelical Church in Germany - 24.5 million[22]
Church of Sweden - 6.7 million[23]
Evangelical Lutheran Church in Tanzania - 5.6 million[23]
Ethiopian Evangelical Church Mekane Yesus - 5.3 million[23]
United Evangelical Lutheran Churches in India - 4.5 million[24]
Evangelical Lutheran Church in America - 4.5 million[23]
Church of Denmark - 4.5 million[23]
Evangelical Lutheran Church of Finland - 4.4 million[23]
Batak Christian Protestant Church - 4.2 million[23]
Church of Norway - 4.0 million[23]
Christian Protestant Church in Indonesia - 3.6 million[23]
Malagasy Lutheran Church - 3.0 million[23]
Lutheran Church–Missouri Synod - 2.5 million[25]
The Lutheran Church of Christ in Nigeria - 1.9 million[23]
Evangelical Lutheran Church of Papua New Guinea - 0.9 million[23]
Evangelical Church of the Lutheran Confession in Brazil - 0.7 million[23]
Evangelical Lutheran Church in Namibia - 0.7 million[23]
Evangelical Lutheran Church in Southern Africa - 0.6 million[23]
Evangelical Lutheran Church in the Republic of Namibia - 0.4 million[23]
Wisconsin Evangelical Lutheran Synod - 0.4 million[26]
Evangelical Church of the Augsburg Confession in Slovakia - 0.4 million[23]
The Indonesian Protestant Church - 0.4 million[23]
The Protestant Christian Church - 0.4 million[23]
Evangelical Church of the Augsburg Confession in Austria - 0.3 million[23]
Evangelical Lutheran Church of Cameroon - 0.2 million[23]
Church of Iceland - 0.2 million[23]
Evangelical Lutheran Church of Brazil - 0.2 million[27]
Simalungun Protestant Christian Church - 0.2 million[23]
Evangelical Lutheran Church in Zimbabwe - 0.2 million[23]
Evangelical Lutheran Church of Latvia - 0.2 million[23]
Evangelical-Lutheran Church in Hungary - 0.2 million[23]
Protestant Church of Augsburg Confession of Alsace and Lorraine - 0.2 million[23]
The Lutheran Council of Great Britain - 0.2 million[23]
Estonian Evangelical Lutheran Church - 0.2 million[23]

Methodism - 75 million United Methodist Church - 12 million[28]
African Methodist Episcopal Church - 2.5 million[29]
Methodist Church Nigeria - 2 million[30]
Church of the Nazarene - 2 million[31]
Methodist Church of Southern Africa - 1.7 million[32]
Korean Methodist Church - 1.5 million[33]
African Methodist Episcopal Zion Church - 1.5 million[34]
The Salvation Army - 1.4 million [35]
United Methodist Church of Ivory Coast - 1 million[36]
Free Methodist Church - 0.9 million[37]
Christian Methodist Episcopal Church - 0.9 million[38]
Methodist Church Ghana - 0.8 million[39]
Methodist Church in India - 0.6 million[40]
Methodist Church in Kenya - 0.5 million[41]
Wesleyan Church - 0.4 million[42]
Evangelical Free Church of America - 0.4 million[43]
Methodist Church of Great Britain - 0.3 million[44]
Methodist Church in Brazil - 0.2 million[45]

Reformed churches - 75 million Presbyterianism - 40 million Presbyterian Church of East Africa - 4.0 million[46]
Presbyterian Church of Africa - 3.4 million[47]
United Church of Canada - 2.8 million[48]
Church of Christ in Congo–Presbyterian Community of Congo - 2.5 million[49]
Presbyterian Church of Korea - 2.4 million[50]
Presbyterian Church (U.S.A.) - 1.8 million[51]
Presbyterian Church of Cameroon - 1.8 million[52]
Church of Central Africa, Presbyterian - 1.3 million[53]
Church of Scotland - 1.1 million[54]
Presbyterian Church of the Sudan - 1.0 million[55]
Presbyterian Church in Cameroon - 0.7 million[56]
Presbyterian Church of Brazil - 0.7 million [57]
Evangelical Presbyterian Church, Ghana - 0.6 million[58]
United Church of Christ in the Philippines - 0.5 million[59]
Presbyterian Church of Nigeria - 0.5 million[60]
Uniting Presbyterian Church in Southern Africa - 0.5 million[61]
Presbyterian Church of Pakistan - 0.4 million[62]
Presbyterian Church in Ireland - 0.3 million
Uniting Church in Australia - 0.3 million[63]
Presbyterian Church in America - 0.3 million[64]
Presbyterian Church of Korea - 0.3 million[65]
Presbyterian Church in Rwanda - 0.3 million[66]
Presbyterian Church in Taiwan - 0.3 million[67]

Continental Reformed churches - 30 million Church of Jesus Christ in Madagascar - 3.5 million[68]
United Church of Zambia - 3.0 million[69]
Protestant Church in the Netherlands - 2.5 million[70]
Swiss Reformed Church - 2.4 million[71]
Evangelical Church of Cameroon - 2.0 million[72]
Protestant Evangelical Church in Timor - 2.0 million[73]
Dutch Reformed Church - 1.1 million
Christian Evangelical Church in Minahasa - 0.7 million[74]
United Church in Papua New Guinea and the Solomon Islands - 0.6 million[75]
Protestant Church in Western Indonesia - 0.6 million[76]
Evangelical Christian Church in Tanah Papua - 0.6 million[77]
Protestant Church in the Moluccas - 0.6 million[78]
Reformed Church in Hungary - 0.6 million[79]
Reformed Church in Romania - 0.6 million[80]
Uniting Reformed Church in Southern Africa - 0.5 million[81]
Toraja Church - 0.4 million[82]
Reformed Church of France - 0.4 million[83]
Lesotho Evangelical Church - 0.3 million[84]
Evangelical Christian Church in Halmahera - 0.3 million[85]
Christian Church of Sumba - 0.3 million[86]
Karo Batak Protestant Church - 0.3 million[87]
Reformed Church in America - 0.3 million[88]
Christian Reformed Church in North America - 0.3 million[89]
Christian Reformed Church of Nigeria - 0.3 million[90]
Reformed Church in Zambia - 0.3 million[91]
Kalimantan Evangelical Church - 0.2 million[92]
Javanese Christian Churches - 0.2 million[93]
Indonesia Christian Church - 0.2 million[94]
Church of Christ in the Sudan Among the Tiv - 0.2 million[95]
Church of Lippe - 0.2 million[96]
Evangelical Church of Congo - 0.2 million[97]
Evangelical Church of Gabon - 0.2 million[98]
Christian Evangelical Church of Sangihe Talaud - 0.2 million[99]
Central Sulawesi Christian Church - 0.2 million[100]
Evangelical Reformed Church in Bavaria and Northwestern Germany - 0.2 million[101]

Congregationalism - 5 million United Church of Christ - 1.2 million[102]
Evangelical Congregational Church in Angola - 0.9 million[103]
United Congregational Church of Southern Africa - 0.5 million[104]

Anabaptism and Schwarzenau Brethren - 3.5 million Schwarzenau Brethren/German Baptist groups - 1.5 million[105]
Mennonites - 1.7 million
Amish - 0.25 million
Hutterites - 0.05 million

Hussites - 1 million Moravians - 0.825 million
Czechoslovak Hussite Church - 0.14 million
Unity of the Brethren - 0.035 million

Quakers (Religious Society of Friends) - 0.4 million

Modern Protestantism - 464 million Pentecostalism - 279 million[106] Assemblies of God - 65 million[107]
Fangcheng Fellowship - 12 million
International Circle of Faith - 11 million[108]
China Gospel Fellowship - 10 million
Church of God (Cleveland, Tennessee) - 9 million
International Church of the Foursquare Gospel - 8 million
Church of God in Christ - 6.5 million[109]
Apostolic Church - 6 million
Jesus is Lord Church - 6 million
International Pentecostal Holiness Church - 4 million
United Pentecostal Church International - 4 million
The Pentecostal Mission - 2.5 million
Christian Congregation of Brazil - 2.5 million
True Jesus Church - 2.5 million
Church of Pentecost - 2.1 million
Universal Church of the Kingdom of God - 2 million
Pentecostal Assemblies of the World - 1.5 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

Nondenominational evangelicalism - 80 million Calvary Chapel - 25 million
Born Again Movement - 20 million
Association of Vineyard Churches - 15 million
Christian and Missionary Alliance - 4 million[110]
True Jesus Church - 2.5 million
Church of God (Anderson, Indiana) - 1.2 million

African initiated Protestant churches - 60 million [111] Zion Christian Church - 15 million
Eternal Sacred Order of Cherubim and Seraphim - 10 million
Kimbanguist Church - 5.5 million
Church of the Lord (Aladura) - 3.6 million[112]
Council of African Instituted Churches - 3 million[113]
Church of Christ Light of the Holy Spirit - 1.4 million[114]
African Church of the Holy Spirit - 0.7 million[115]
African Israel Church Nineveh - 0.5 million[116]

Seventh-day Adventist Church - 17 million
New Apostolic Church - 10 million[117]
Chinese-originated and Chinese Independent Churches – 10 million Local Churches – between 1 and 10 million
Eastern Lightning – 1 million
The Shouters – unknown, probably less than 1 million

Note: Groups listed have origins in the Lord’s Recovery movement associated with Watchman Nee and Witness Lee. The Shouters are an offshoot of the Local Churches considered a dangerous sect by the Chinese government; due to the extremely decentralized nature of both groups, there is controversy over which house churches should be actually considered part of each. Eastern Lightning, which is in turn an offshoot of The Shouters, is very hierarchical (in contrast to its predecessors) and teaches that Christ has already returned as a woman named Lightning Deng.
Restoration Movement - 7 million Churches of Christ - 5 million
Christian churches and churches of Christ - 1.1 million[13]
Christian Church (Disciples of Christ) - 0.7 million[118]

Plymouth Brethren - 1 million[119]

Eastern Orthodoxy - 225–300 million[edit]

A map of Eastern Orthodoxy by population percentage.
The most common estimates of the number of Orthodox Christians worldwide are approximately 225–300 million.[120] These are the adherents of the recognized Orthodox jurisdictions (autocephalous and autonomous churches) that are in full communion with each other. In addition, there are some Orthodox splinter groups and non-universally recognized churches.
Autocephalous churches - 240 million Russian Orthodox Church - 150 million
Romanian Orthodox Church - 23 million
Church of Greece - 15 million
Serbian Orthodox Church - 11.5 million
Bulgarian Orthodox Church - 10 million
Georgian Orthodox Church - 3.5 million
Greek Orthodox Church of Constantinople - 3.5 million
Greek Orthodox Church of Antioch - 2.5 million
Greek Orthodox Church of Alexandria - 1.5 million
Orthodox Church in America - 1.2 million
Polish Orthodox Church - 1 million
Albanian Orthodox Church - 0.8 million
Church of Cyprus - 0.7 million
Greek Orthodox Church of Jerusalem - 0.14 million
Czech and Slovak Orthodox Church - 0.07 million

Autonomous churches - 12 million Ukrainian Orthodox Church (Moscow Patriarchate) - 7.2 million[121]
Moldovan Orthodox Church - 3.2 million
Russian Orthodox Church Outside Russia - 1.25 million
Metropolitan Church of Bessarabia - 0.62 million
Orthodox Ohrid Archbishopric - 0.34 million[citation needed]
Estonian Orthodox Church - 0.3 million
Patriarchal Exarchate in Western Europe - 0.15 million
Finnish Orthodox Church - 0.08 million
Chinese Orthodox Church - 0.03 million
Japanese Orthodox Church - 0.02 million
Latvian Orthodox Church - 0.02 million

Non-universally recognized churches - 11 million Ukrainian Orthodox Church (Kyiv Patriarchate) - 5.5 million[121]
Ukrainian Autocephalous Orthodox Church - 3.8 million
Belarusian Autocephalous Orthodox Church - 2.4 million
Macedonian Orthodox Church - 2 million
Orthodox Church of Greece (Holy Synod in Resistance) - 0.75 million
Old Calendar Romanian Orthodox Church - 0.50 million
Old Calendar Bulgarian Orthodox Church - 0.45 million
Orthodox Church in Italy - 0.12 million
Montenegrin Orthodox Church - 0.05 million

Other separated Orthodox groups - 10 million Old Believers - 5.5 million
Greek Old Calendarists - 0.86 million
True Orthodox Church - 0.85 million

Oriental Orthodoxy - 86 million[edit]

A map of Oriental Orthodoxy by population percentage.Autocephalous churches in communion Ethiopian Orthodox Tewahedo Church - 48 million[122]
Coptic Orthodox Church of Alexandria - 15.5 million
Armenian Apostolic Church - 8 million
Syriac Orthodox Church - 6.6 million[123][124][125]
Eritrean Orthodox Tewahedo Church - 2.5 million
Malankara Orthodox Syrian Church - 2 million[126]
Armenian Orthodox Church of Cilicia - 1.5 million

Autonomous churches in communion Jacobite Syrian Christian Church - 1.2 million[127]
Armenian Patriarchate of Constantinople - 0.42 million
Armenian Patriarchate of Jerusalem - 0.34 million
French Coptic Orthodox Church - 0.01 million
British Orthodox Church - 0.01 million

Churches not in communion Mar Thoma Syrian Church - 1.1 million[128]
Malabar Independent Syrian Church - 0.06 million

Anglicanism - 85 million[edit]
Anglican Communion - 80 million[129] Church of England - 25.0 million[130]
Church of Nigeria - 18.0 million[131]
Church of Uganda - 8.1 million[132]
Anglican Church of Kenya - 5.0 million[133]
Episcopal Church of Sudan - 4.5 million[134]
Church of South India - 4 million[135]
Anglican Church of Australia - 3.9 million[136]
Anglican Church of Southern Africa - 2.3 million[137]
Episcopal Church in the United States - 2.1 million[138]
Anglican Church of Tanzania - 2.0 million[139]
Anglican Church of Canada - 2.0 million[140]
Church of North India - 1.5 million[141]
Anglican Church of Rwanda - 1.0 million[142]
Church of the Province of Central Africa - 0.9 million[143]
Anglican Church of Burundi - 0.8 million[144]
Church in the Province of the West Indies - 0.8 million[145]
Church of the Province of the Indian Ocean - 0.5 million[146]
Church of Christ in Congo–Anglican Community of Congo - 0.5 million[147]
Church of Pakistan - 0.5 million[148]
Church of Ireland - 0.4 million[149]
Church of the Province of West Africa - 0.3 million[150]
Church of the Province of Melanesia - 0.2 million[151]

Continuing Anglican movement and independent Anglican churches - 1.5 million Traditional Anglican Communion - 0.4 million[152]
Church of England in South Africa - 0.1 million[153]

Restorationism and Non-Trinitarianism - 41 million[edit]
Latter Day Saint movement - 15.2 million The Church of Jesus Christ of Latter-day Saints (Mormonism) - 15 million[154]
Community of Christ - 0.2 million[155]

Iglesia ni Cristo - 10 million[156][157]
Jehovah’s Witnesses - 7.65 million [158][159]
Oneness Pentecostalism - 6 million United Pentecostal Church International - 4 million
Pentecostal Assemblies of the World - 1.5 million

La Luz del Mundo - between 1 and 7 million
Unitarian Universalism - 0.6 million Unitarian Universalist Association - 0.2 million[160]

Note: Unitarian Universalism, which counts 0.6 million adherents,[161] 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

Church of the East - 0.6 million[edit]
Assyrian Church of the East - 0.5 million
Ancient Church of the East - 0.1 million