- Cogan, Susan (Clarinetist)1
- Cohen, Beth1
- Cohen, David, 1927-19911
- Cohen, Isidore4
- Coker, Wilson1
- Colby String Quartet1
- Cole, Robert (Bassoonist)1
- Colgrass, Michael1
- Collins, Howard (Guitarist)1
- Columbia University Chamber Orchestra2
- Columbia University Choir1
- Columbia University Orchestra29
- Columbia University Singers1
- Columbia-Princeton Electronic Music Center932
- Columbia-Princeton Electronic Music Center Collection929
- Composers Forum Concerts Collection158
- Composers String Quartet5
- Concours international de musique électroacoustique1
- Condon, Ruth1
- Cone, Edward T1
- Conrad, Barbara Smith, 1937-20171
- Consoli, Marc-Antonio1
- Contemporary Chamber Ensemble1
- 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, 1900-19908
- Corey, Dean1
- Cornell University. Laboratory of Ornithology2
- Corner, Philip3
- Cortés, Ramiro, 1933-19841
- Corwin, Norman, 1910-20111
- Cory, Eleanor, 1943-1
- Cowan, Daniel1
- Cowell, Henry, 1897-196510
- Cowen, Daniel1
- Cowen, Marjorie (Violinist)1
- Cox, A. (Alan)1
- Craft, Robert1
- Cramer, Browning, 1944-1
- Cramer, Heinz von, 1924-20091
- Crane, Stephen, 1871-19001
- Crane, Thomas (Composer)1
- Crane, Thomas (Musician)1
- Crapsey, Adelaide, 1878-19141
- Creston, Paul, 1906-19852
- Crumb, George1
- Crutcher, Ronald1
- Cummings, Conrad, 1948-1
- Cummings, E. E. (Edward Estlin), 1894-19623
- Cummiskey, Linda6
- Curtis, Paul J., 1927-20121
- Curtis-Smith, C. (Curtis), 1941-20141
- D'Angelo, Nicholas V1
- Dahl, Ingolf, 1912-19702
- Dahlberg, Ramona1
- Dahlman, Barbro1
- Dalgleish, James1