Encyclopedias, Almanacs, Transcripts, and Maps
- Clurman, Richard Michael
- Cluzeau-Mortet, Luis [Ricardo] (1889–1957)
- Coast Miwok
- Coatepeque, Battle of
- Coatlicue
- Coatzacoalcos River
- Cobá
- Cobain, Kurt Donald
- Cobb, Ty(rus) Raymond
- Cobo, Bernabé (1580–1657)
- Cobos, Francisco de Los (c. 1477–1547)
- COBUILD
- Cocama
- Cochasquí
- Cochran, Johnnie L., Jr.
- Cochrane, Gordon Stanley ("Mickey")
- Cochrane, Lord Thomas Alexander (1775–1860)
- Cockburn, Catharine Trotter (1679?–1749)
- Côco
- Cocopa