Comg - Cord
- Comgall, Saint
- Comm. Prec.
- Comm. Seq.
- Commander James Harman Ward
- Commandments of God (The Ten Commandments)
- Commandments of the Church
- Commemoration (in Liturgy)
- Commemoration of the Passion of Christ
- Commendatory Abbot
- Commendone, Giovanni Francesco
- Commentaries on the Bible
- Commines, Philippe de
- Commissariat of the Holy Land
- Commissary Apostolic
- Commissions, Ecclesiastical
- Commodianus
- Commodus
- Common Law
- Common Life, Brethren of the
- Common Prayer, Book of
- Common Sense, Philosophy of
- Commune, Martyrs of the Paris
- Communicatio Idiomatum
- Communicatio Idiomatum (Communication of Idioms)
- Communion Antiphon
- Communion Bench
- Communion of Children
- Communion of Saints
- Communion of the Sick
- Communion Rail
- Communion under Both Kinds
- Communion, Frequent
- Communion, Holy
- Communism
- Comnena, Anna
- Como
- Compagnie du Saint-Sacrement
- Company of Jesus
- Compensation
- Compensation, Occult
