Encyclopedias, Almanacs, Transcripts, and Maps
- Cotegipe, Barão de (1815–1889)
- Coto War
- Cotocollao
- Cotopaxi Quichua
- Cotten, Joseph Cheshire
- Council for Development and Reconstruction (CDR)
- Council of the Indies
- Councils
- Counsilman, James Edward ("Doc")
- Counsilman, James Edward (“Doc”)
- COUNTABLE AND UNCOUNTABLE
- Counterfactuals
- Counterfactuals in Science
- Counterinsurgency
- Country Music Audiences
- Coup D'État of 1808
- Cournot, Antoine Augustin (1801–1877)
- Cousin, Victor (1792–1867)
- Cousy, Robert ("Bob")
- Coutinho, José Joaquim da Cunha de Azeredo (1742–1821)