Encyclopedias, Almanacs, Transcripts, and Maps
- Clairton
- Clallam
- clam shrimp
- Clamart
- clamworm
- Clancy, Tom
- Clanricarde, Ulick de Burgh, 5th earl and marquess of
- Clapp, Louise Brough
- Clapp, Verner
- Clara Barton National Historic Site
- Clare, Richard de
- Claremont Colleges
- Clarendon, George William Frederick Villiers, 4th earl of
- Clarens
- Clarín
- Clark College
- Clark, Abraham
- Clark, Champ
- Clark, Colin
- Clark, John