C
- Cannabis
- Canyons and gorges (category)
- Capital, State
- Salem 1859–
- Capital, Territorial
- Corvallis, 1855
- Oregon City, 1848–1851
- Salem, 1851–1855 and 1855–1859
- Capitol Building
- Capitol Building (commons category)
- Casinos (category)
- Caves (category)
- Census statistical areas
- Christianity (category)
- Cities
- Cities (commons category)
- Civil War units, Oregon
- Climate (subsection)
- Colleges and universities
- Colleges and Universities (commons category)
- Colleges, community
- Communications (category)
- Communities, unincorporated
- Community colleges
- Companies (category)
- Congressional districts
- Congressional delegations
- Constitution
- Controlled substances
- Convention centers (category)
- Counties
- Counties (commons category)
- County name etymologies
- Court, United States District
- Court of Appeals, Ninth Circuit
- Cuisine
- Culture
- Culture (category)
Read more about this topic: Index Of Oregon-related Articles