As of 2026-10-12, Catholic Church tops the list with 1,272,000,000 members.
- #1 Catholic Church — 1,272,000,000 members
largest Christian Church, made up of 24 autonomous Churches in communion with the Pope, part of the Latin Church aka Latin Christianity a.k.a. western Christianity
The Catholic Church, also called the Roman Catholic Church, is the largest Christian church, with an estimated 1.28 to 1.41 billion baptized members worldwide as of 2026. It consists of 24 autonomous churches. The largest one of these churches is the Latin Church. In addition to it, there are 23 smaller Eastern Catholic Churches. Together, the Latin Church and the Eastern Catholic churches are organized into nearly 3,500 dioceses and eparchies governed by bishops. Throughout history, the church... Read more on Wikipedia.
Wikidata - #2 Eastern Orthodox Church — 220,000,000 members
second-largest Christian church
The Eastern Orthodox Church, officially the Orthodox Catholic Church, also known as the Greek Orthodox Church is the second-largest Christian body in the world after the Roman Catholic Church, and one of the six major doctrinal and jurisdictional groups of Christianity. Read more on Wikipedia.
Wikidata - #3 Ethiopian Orthodox Tewahedo Church — 49,800,000 members
oriental Orthodox Church denomination of Ethiopia
The Ethiopian Orthodox Tewahedo Church (EOTC), also sometimes known as the Abyssinian Church or the Church of Abyssinia, is the largest of the Oriental Orthodox Churches. The EOTC is the first indigenous Christian church from sub-Saharan Africa and precedes the arrival of Western and European colonizers, who mostly followed Catholic and Protestant denominations, to the region by more than a millennium. It is also one of only three universally recognized Oriental Orthodox churches in Africa... Read more on Wikipedia.
Wikidata - #4 Church of England — 23,000,000 members
Christian church in England and the Mother Church of the worldwide Anglican Communion
The Church of England is the established Christian church in England and the Crown Dependencies. It was the initial church of the Anglican tradition. The church traces its history to the Christian hierarchy recorded as existing in the Roman province of Britain by the 3rd century and to the 6th-century Gregorian mission to Kent led by Augustine of Canterbury. Its members are called Anglicans. Read more on Wikipedia.
Wikidata - #5 Seventh-day Adventist Church — 22,127,000 members
Christian denomination
The Seventh-day Adventist Church (SDA) is an Adventist Christian denomination which is distinguished by its observance of Saturday, the seventh day of the week in the Christian (Gregorian) and the Hebrew calendar, as the Sabbath; its emphasis on the imminent Second Coming (advent) of Jesus Christ; and its annihilationist soteriology. The denomination grew out of the Millerite movement in the United States during the mid-19th century, and it was formally established in 1863. Among its... Read more on Wikipedia.
Wikidata - #6 Coptic Orthodox Church — 22,000,000 members
international Oriental Orthodox Christian church led by the Patriarch of Alexandria on the Holy See of St. Mark
The Coptic Orthodox Church, also known as the Coptic Orthodox Patriarchate of Alexandria, is an Oriental Orthodox Christian church based in Egypt. The head of the Coptic Orthodox Church and of the See of Alexandria is the pope of Alexandria on the holy apostolic see of Saint Mark. The current pope of the Coptic Orthodox Church is Pope Tawadros II. Read more on Wikipedia.
Wikidata - #7 The Church of Jesus Christ of Latter-day Saints — 17,002,461 members
Christian restorationist denomination centered on the Book of Mormon
The Church of Jesus Christ of Latter-day Saints, informally known as the LDS Church or Mormon Church, is the largest denomination in the Latter Day Saint movement. Founded during the Second Great Awakening, the church is headquartered in Salt Lake City, Utah, United States, and has established congregations and built temples worldwide. According to the church, as of 2024, it had more than 17.5 million members, of which more than 6.8 million live in the United States. The church also reports... Read more on Wikipedia.
Wikidata - #8 Armenian Apostolic Church — 9,000,000 members
national church of the Armenian people
The Armenian Apostolic Church is the autocephalous national church of Armenia. Part of Oriental Orthodoxy, it is one of the most ancient Christian churches. The Armenian Apostolic Church uses the Armenian Rite. The Kingdom of Armenia was the first state in history to adopt Christianity as its official religion during the rule of King Tiridates III, of the Arsacid dynasty in the early 4th century. Read more on Wikipedia.
Wikidata - #9 Jehovah's Witnesses — 8,514,983 members
non-trinitarian millenarian restorationist Christian denomination
Jehovah's Witnesses is a nontrinitarian, millenarian, and restorationist Christian denomination, stemming from the Bible Student movement founded by Charles Taze Russell in the nineteenth century. Russell co-founded Zion's Watch Tower Tract Society in 1881 to organize and print the movement's publications. A leadership dispute after Russell's death led several groups to break away, with Joseph Franklin Rutherford retaining control of the Watch Tower Society and its properties. Rutherford made... Read more on Wikipedia.
Wikidata - #10 Philippine Independent Church — 7,000,000 members
Christian denomination, 1902-
The Philippine Independent Church, officially referred to by its Philippine Spanish name Iglesia Filipina Independiente (IFI) and colloquially called the Aglipayan Church, is an independent catholic Christian denomination, in the form of a nationalist church, in the Philippines. Its revolutionary nationalist schism from the Catholic Church in the Philippines was proclaimed during the American colonial period in 1902, following the end of the Philippine–American War, by members of the... Read more on Wikipedia.
Wikidata