A confraternity is generally a Christian voluntary association of lay people created for the purpose of promoting special works of Christian charity or piety, and approved by the Church hierarchy. They are most common among Roman Catholics, Anglicans, Lutherans and the Western Orthodox. When a confraternity has received the authority to aggregate to itself groups erected in other localities, it is called an archconfraternity. An example is the Confraternity of the Rosary.
The term may have other meanings: Confraternities in Nigeria began as a term for fraternities in the American college sense, university-based social organisations.
The Confraternity of the Blessed Sacrament is an example of an Anglo-Catholic confraternity established in the Church of England which has spread to many places within the Anglican Communion of churches.
The Confraternity of the Immaculate Conception is a renowned lay Marian apostolate in the Philippines known for administering the Grand Marian Procession parade on the Feast of the Immaculate Conception.
Similarly members of The Augustana Confraternity, which is in the Lutheran tradition, "devote themselves to the teachings of Holy Scripture and to the elucidation of those teachings in the Confessional writings of the Lutheran Church, particularly the Small Catechism."