- cardo maximus
- Carib
- caribou
- carinated
- Carlingford Culture
- Carmelites
- Carnac alignments, Morbihan, Brittany, France
- Carnonacae
- carnyx
- Carolingian empire
- Carp's Tongue Complex
- carp's tongue sword
- carr
- Carrowkeel ware
- carrying capacity
- cart burial
- Cartailhac, Édouard Philippe Émile
- Carter, Howard
- Cartesian dualism
- Carthage, Tunisia
- Carthusian order
- Cartimandua
- cartouche
- cartulary
- carved stone balls
- carvel-built
- caryatid
- cashel
- Cashibocaña Phase
- Casper, Wyoming, USA
