- Cuenca, Alonso Gaytan de1
- Cuenca, Francisco Gaytan de1
- Cuenca, Juan Gaytan de1
- Cueva y de Castilla, Beltrán III de la, Duke of Alburquerque, -16121
- Cueva, Andrea della1
- Cults3
- Cur Deus homo (Anselm, Saint, Archbishop of Canterbury)1
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- Customary law5
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- Cynics (Greek philosophy)2
- Cyprian War (1570-1571)1
- Cyprus5
- Cyprus--Paphos (District)1
- Cyropaedia (Xenophon)1
- Cyrus, the Great, King of Persia, -530 B.C. or 529 B.C.1
- Czech (culture or style)8
- Czech Republic17
- Czech Republic--Bohemia4
- Czech Republic--Brno1