- Cathedral bindings1
- Cathedrals1
- Catherine, of Alexandria, Saint1
- Catherine, of Siena, Saint, 1347-13801
- Catholic Church. Archdeaconry of London (England)1
- Catholic Church. Archdiocese of Pesaro (Italy)1
- Catholic Church. Collectarium1
- Catholic Church. Diocese of Salisbury (England)1
- Catholic Church. Ordo divini officii (Archdiocese of Mainz : Rhineland-Palatinate, Germany)1
- Catholic Church. Pope1
- Catholic almanacs1
- Censures, Ecclesiastical1
- Centerpiece and cornerpiece bindings1
- Certosa del Galluzzo (Florence, Italy)1
- Charlemagne, Emperor, 742-8141
- Charles IV, Duke of Lorraine, 1604-16751
- Charon (Greek mythology)1
- Charters and articles of incorporation1
- Chess1
- Chiesa di San Giovanni Battista (Gradara, Italy)1