- Carretto, Geronimo del1
- Carretto, Giovanni Francesco1
- Carretto, Giovanni del1
- Carretto, Paolo del1
- Casa, Lodovico della1
- Casini, Ciulla1
- Casini, Vergilio1
- Castello di Rapolano (Rapolano Terme, Italy)1
- Castrucci, Antonio1
- Casuistry1
- Catedral de Zamora1
- Categoriae (Aristotle)1
- Categories (Philosophy)1
- Cathedral bindings1
- Cathedrals1
- Catherine, of Alexandria, Saint1
- Catholic Church--History--Sources1
- Catholic Church. Archdeaconry of London (England)1
- Catholic Church. Archdiocese of Florence (Italy)1
- Catholic Church. Archdiocese of Wrocław (Poland)1