Encyclopedias, Almanacs, Transcripts, and Maps
- Calpurnius
- Caltagirone
- Caltanissetta
- Calumet Harbor
- Calvados
- Calvo, Carlos
- Calvus
- Calypso (in Greek mythology)
- Camarillo
- camass
- Cambacérès, Jean Jacques Régis de
- Cambay
- Cambodian art and architecture
- Cambon, Jules Martin
- Cambon, Pierre Joseph
- Cambon, Pierre Paul
- Camborne-Redruth
- Cambrai, Treaty of
- Cambrian Mountains
- Cambridge Bay