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There are a wide variety of groups associated with Christianity. There are official denominations, break-away sects, orthodox movements within denominations and sects, heretical movements, and extra-church groups which have associated themselves with Christianity. If you have ever wondered what some of them are and what they believe, this listing will help.
Denominations & Sects
Below is an alphabetical list of "official" denominations and sects of Christianity. Some are larger, some are smaller, and some don't really exist any more - but all have played a role in defining the course of Christian traditions.
Amish
Anabaptism
Assemblies of God
Baptists
Calvinism
Christadelphians
Christian Identity
Church Universal and Triumphant
Church of Christ
Church of England
Congregationalism
Coptic Christianity
Eastern Orthodox
Episcopal Church
Ethiopian Christianity
IURD
Jehovah's Witnesses
Lutheran Church
Maronites
Mennonites
Methodism
Old Catholic Movement
Pentecostal Church
People's Temple
Pilgrims
Presbyterian Church
Protestant
Puritanism
Quakers
Roman Catholicism
Shakers
Spiritual Baptists
Thomas Christians
Unification Church
Unitarianism
United Church of Christ
Unitarian Universalist
Church Groups & Movements
Below is a list of "official" movements and groups which can be found in various Christian churches and traditions. They do not qualify as independent churches or sects - instead, they have helped define those churches and sects.
Acoemetae
Adelophagi
Adventist Movement
amillennialism
Arminian Theology
Augustinians
Benedictines
Cahenslyism
Capuchins
Carmelites
dispensationalism
Dominicans
Evangelicalism
Franciscans
fundamentalism
Gnosticism
Huguenots
Hutterites
Liberation Theology
Mainline Protestant
Mendicant Orders
Neo-Orthodoxy
Pietism
postmillennialism
Primitivism
Quietism
Sabbatarianism
staret
premillennialism
Scholasticism
Thomism
Transcendentalism
Trinitarianism
Universalism
Heretical Movements
Below is a list of movements and ideologies which have been declared "heretical" in Christian tradition. These groups either challenged orthodox beliefs or their existence caused more official groups to define what those orthodox beliefs should actually be. Sometimes, heretical groups play a larger role in defining orthodoxy than orthodox groups do.
Adamites
adoptionism
Albigenses
antinomianism
Apollinarianism
Arianism
Cathars
Docetism
Donatism
Ebionites
Jansenism
Lapsed Christians
Lollards
Manicheism
monophysite
Montanism
Nestorianism
Pelagianism
Waldenses
Non-Church Movements
Below is a list of groups and movements which are not actual sects or denominations and which are not officially a part of any church, but nevertheless have associated themselves with Christianity in one way or another.
Freemasonry
Rosicrucianism
Salvation Army
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