CBOT - Chey
- CBOT
- CBS
- CBS Building
- CBS Cable
- CBS Evening News
- CBS Fox
- CBT
- CC
- CCC
- CDF
- cease and desist
- Cedar Breaks National Monument
- Cedar Rapids
- Celeste frozen pizza
- Celestial Seasonings
- cell
- Celler-Kefauver Antimerger Act of 1950
- Cellular One
- cellular phone
- Celsius
- Cement City
- cemetery vote
- censorship
- censure
- census
- Census Bureau
- cent
- CENTCOM
- Centennial Exposition, Philadelphia's
- Centennial State
- center fielder
- Center for Advanced Study in the Behavioral Sciences
- Center for Auto Safety
- Center for Democracy
- Center for Marine Conservation
- Center for National Security Studies
- Center for Strategic and International Studies
- Center for the Study of Democratic Institutions
- Center for the Study of Responsive Law
- Center for the Study of the Presidency
