- Carpenter, John Alden, 1876-19511
- Cass, Lee (Vocalist)1
- Castaldo, Joseph1
- Cazden, Norman, 1914-19801
- Cecil, Robert1
- Chamberlain, Anne, 1938-1
- Chamisso, Adelbert von, 1781-18381
- Chapin, Schuyler1
- Chasins, Abram, 1903-19871
- Chelsi, Lawrence1
- Cherry, Philip (Cellist)1
- Chesterman, Robert, 1931-20074
- Chiasson, Claude Jean1
- Chinn, Genevieve1
- Chorberg, Israel1
- Chou, Wen-Chung, 1923-20192
- Cirillio, Nancy1
- Claflin, Avery, 1898-19791
- Clark, Richard X1
- Clarke, Henry Leland1
- Cleveland Orchestra1
- Cogan, Robert, 1930-1
- Cogan, Susan (Clarinetist)1
- Cohen, Beth1
- Cohen, David, 1927-19911
- Cohen, Isidore4
- Colby String Quartet1
- Collins, Howard (Guitarist)1
- Columbia University Chamber Orchestra1
- Columbia University Choir1
- Columbia University Orchestra9
- Columbia-Princeton Electronic Music Center135
- Columbia-Princeton Electronic Music Center Collection133
- Composers Forum Concerts Collection70
- Concours international de musique électroacoustique1
- Conrad, Barbara Smith, 1937-20171
- Contemporary String Quartet1
- Converse, F. S. (Frederick Shepherd), 1871-19401
- Cook, James, 1728-17791
- Cooke, Francis Judd, 1910-19951
- Cope, David, 1941-1
- Copland, Aaron, 1900-19902
- Copley, Alfred L1
- Corner, Philip1
- Cortés, Ramiro, 1933-19841
- Cory, Eleanor, 1943-1
- Cowan, Daniel1
- Cowell, Henry, 1897-19654
- Cowell, Sidney Robertson, 1903-19951
- Cowen, Daniel1
- Cramer, Browning, 1944-1
- Crane, Stephen, 1871-19001
- Crane, Thomas (Musician)1
- Crapsey, Adelaide, 1878-19141
- Creston, Paul, 1906-19852
- Cummings, E. E. (Edward Estlin), 1894-19623
- Cummiskey, Linda3
- Curtis, Paul J., 1927-20121
- Curtis-Smith, C. (Curtis), 1941-20141
- Dahlberg, Ramona1