Today, there are around 45,000 Christian denominations worldwide, each holding distinct views on God, Jesus, the Bible, and the world.

The Roman Catholic Church remains the largest Christian denomination globally. However, those looking for alternatives face several distinct paths:

Catholicism, Anglicanism, and Orthodoxy

• Traditionalist Catholics: Those who find the modern Roman Catholic Church too progressive often turn to traditionalist movements (such as the Society of St. Pius X), which preserve the Latin Mass and pre-Vatican II traditions.
• Old Catholics: Historically split from Rome in 1870 over papal infallibility, this church has actually evolved to be highly progressive on social issues.
• Anglicans: Those who appreciate Catholic liturgy but prefer a church more aligned with the modern zeitgeist often join the Anglican Communion, which views itself as a bridge between Catholicism and Protestantism.
• Eastern Orthodox: The largest branches include the Greek Orthodox and Russian Orthodox churches, which split from Rome during the Great Schisma of 1054.
• Oriental Orthodox: This ancient branch includes the Coptic and Armenian churches, which split earlier in 451 AD over theological debates regarding the nature of Christ.
• Church of the East: Historically known as “Nestorian” Christians, they form a separate historic lineage distinct from both Eastern and Oriental Orthodoxy.

If one embraces Catholicism but considers the Roman Catholic Church too modern, one may become Old Catholic; conversely, if one feels the Roman Catholic Church does not keep pace sufficiently with the spirit of the times, one may join the Anglicans. The most prominent Orthodox churches are the Greek Orthodox and the Russian Orthodox. Also significant is the Oriental Orthodox branch, which encompasses all “spin-offs” resulting from schisms (such as Coptic Christians and Nestorians).

To read more about how these divisions happened, check out my essays “The many lives of Christianity” and “Jesus Wars”.

Non-Trinitarian Groups

If you do not subscribe to the principle of the Trinity, options include:

• Jehovah’s Witnesses: A group that rejects the Trinity and uses its own specific Bible translation.
• The Church of Jesus Christ of Latter-day Saints (Mormons): A movement that rejects traditional trinitarianism and accepts the Book of Mormon as additional scripture.
• Unitarians: A movement focused on the strict oneness of God, which has largely evolved into a broad, non-creedal spiritual community.

The Protestant Landscape

Navigating the Protestant world is complex due to its massive fragmentation, but today it is heavily shaped by active movements and distinct theological frameworks:

• Active Proselytizing Traditions: Evangelicals, Pentecostals, and Baptists form the most active missionary forces globally. Pentecostalism, in particular, is the fastest-growing religious movement in the world, emphasizing spiritual gifts, charismatic worship, and aggressive global expansion.
• Christian Zionists: Found heavily within independent evangelical, charismatic, and Southern Baptist circles, this influential movement interprets biblical prophecy as requiring fervent political and financial support for the State of Israel. They view the modern gathering of Jewish people in the Holy Land as a precursor to the Second Coming of Christ.
• The Communion of Reformed Evangelical Churches (CREC): Associated with public figures like Pete Hegseth, this is a conservative Calvinist network co-founded by pastor Doug Wilson. The denomination is rooted in Christian Reconstructionism and a “theonomic” worldview, which advocates for integrating biblical law into civil society and education—a stance that directly challenges the traditional Western principle of a strict separation of church and state.
• Classic Reformation Traditions: Major historic, less aggressively proselytizing branches include traditional Lutherans, Presbyterians, and Wesleyans (Methodists), who generally maintain standard, institutional denominational structures.