- Cancon (France)1
- Cangiano, Giovanni Andrea1
- Capponi family1
- Capponi, Ludovico, 1533-16141
- Capponi, Matteo1
- Carli, Giovanfrancesco de'1
- Carlo, Giovanbattista di1
- Carlos, Prince of Viana, 1421-14611
- Carthusians1
- Casini, Vergilio1
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- Catherine, of Alexandria, Saint1
- Catholic Church. Archdiocese of Guatemala (Guatemala)1
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- Catholic Church. Archdiocese of Wrocław (Poland)1
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- Celleri, Azzo1