Encyclopedias, Almanacs, Transcripts, and Maps
- Corporate Restructuring
- Corporation, Russian
- Corps of Invalids
- Corrigan and Williams
- Cosgrave, W. T.
- Cosmas Damian and Egid Quirin Asam
- Cost of Living Index
- Cottenham, Charles Christopher Pepys, 1st earl of
- Cotton Club
- Cotton Gin Petition
- Coulomb, Charles-Augustin De (1736–1806)
- Council of Ministers, Soviet
- Council of War
- Council on African Affairs
- Council, Great
- Count Helmuth Karl Bernard von Moltke
- Count Maurice Maeterlinck
- Count Mikhail Mikhailovich Speranski
- Count Nikolaus Ludwig von Zinzendorf
- Counterfeit Access Device and Computer Fraud and Abuse Act of 1984