Name
- Casa, Lisa, Swiss singer, 1919-20121
- Cortis, Marcello, Czech singer1
- Cossa, Dominic, American singer1
- Cossotto, Fiorenza, singer1
- Coster, Janet, singer1
- Cox, John, opera director1
- Craig, Charles James, singer1
- Crespin, Régine, French singer1
- Cross, Beverley, librettist1
- Cross, Joan, singer, 1900-19931
- Crosse, Gordon, composer, 1937-2021, http://isni.org/isni/000000...1
- Crozier, Eric John, librettist, opera producer, 1914-1994, http://isni.org/isni/000000...1
- Csobadi, Peter, writer on music1
- Cummings, David, writer on music1
- Curphey, Margaret, singer1
- Dallapiccola, Luigi, composer, 1904-19751
- Davis, Colin Rex, Knight, conductor, 1927-20131
- Davis, Jack R, singer; alias John, fl 19691
- Debeljevic, Dragan, writer and husband of Lisa Della Casa, 1921-20141
- Delman, Jacqueline, singer, b 19311