Canon law
Cardinal
Cardinal Vicar
Catholicism – the body of the Catholic faith, its theologies and doctrines, its liturgical, ethical, spiritual, and behavioural characteristics, as well as a religious people as a whole.
Catechism – a document containing an approved exposition of Church teachings
Chancery, Apostolic — see: Apostolic Chancery
Chancery, Diocesan – see: Diocesan chancery
Chaplain of His Holiness
Clergy, Regular – see: Regular clergy
Clergy, Secular – see: Secular clergy
Coadjutor bishop — an auxiliary bishop with the legal right of succession to the see of which he is coadjutor
Code of Canon Law, 1917
Code of Canon Law, 1983
Code of Canons of the Eastern Churches
College of Cardinals
College of Consultors
Communion – see: Eucharist and Full communion
Communion rite
Communion of Saints
Conclave
Confession – see: Sacrament of Penance
Confirmation
Congregation, Religious
Congregation (Roman Curia)
Congregation, Sacred – see: Congregation (Roman Curia)
Consecrated life
Consecrated life (Catholic Church)
Consecrated life, Institute of – see: Institute of consecrated life
Corpus Juris Canonici
Council, Pontifical – see: Pontifical Council
Counter-Reformation – the period of Catholic revival beginning with the Council of Trent and ending at the close of the Thirty Years’ War.
Credence table
Crosier
Crucifix
Curia, Moderator of the – see: Moderator of the Curia
Curia
Curia, Roman – see: Roman Curia (below)