Encyclopedias, Almanacs, Transcripts, and Maps
- Clergy Reserves
- Clerides, Glafkos John
- Cletus, Saint
- Cleveland (former county, England)
- Cleveland Heights
- Cleveland State University
- Cleveland, Barbara Villiers, duchess of
- Cleveland, Frederick Albert
- Cleves
- Cleves, duchy of
- Clew Bay
- Clews, Henry
- Clichy
- Click languages
- Cliffside Park
- Climax, Saint John
- climbing plant
- Clingmans Dome
- Clio
- Clipperton Island