- 101 Courts (social groups)
- 1 Courtship
- 14 Courtyards
- 1 Cousins
- 2 Coutts & Co.
- 2 Couzens, James J., 1872–1936
- 7 Covent Garden Theatre
- 2 Covent Garden, England
- 2 Coventry, Connecticut
- 2 Covered bridges
- 16 Covered bridges
- 35 Covered wagons
- 2 Covered walkways
- 2 Coverlets
- 12 Covers (illustration)
- 1 Cowbells
- 5 Cowboy hats
- 5 Cowboys
- 1 Cowell, George
- 9 Cowell, Henry, 1897-1965
- 2 Cowley, Olivia Cecilia, Countess, 1807?-1885
- 1 Cowper, William, Francis, Hon. 1811-1888
- 33 Cows
- 1 Cox, James Middleton, 1870–1957
- 1 Cox's Hotel
- 1 Coyle, Anna
- 1 Coyle, Grace
- 3 Crabs
- 5 Crackers
- 3 Cracks
- 8 Cradles
- 6 Craftsmen
- 1 Craig Cotton Factory
- 6 Cramp Shipyard
- 21 Cranes (birds)
- 47 Cranes (equipment)
- 1 Crans, W. H. Cohocksink Marble Yard
- 6 Crates
- 4 Craven & Dearnley (Worsted and yarn mill)
- 1 Craven, Dunill, & Co. Jackfield Works (England)
