Encyclopedias, Almanacs, Transcripts, and Maps
- 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
- Codazzi, Agustín (c. 1793–1859)
- Code de L'IndigéNat
- Code, Lorraine (1937–)
- CODE-MIXING AND CODE-SWITCHING
- Codesido, Julia (1883–1979)