- Cabrero y Martínez, Paulina
- Caccini, Francesca
- Caccini, Giulio
- Cadman, Charles Wakefield
- Cain, Noble
- Caldara, Antonio
- Calestani, Vincenzo
- Campbell-Tipton, Louis
- Campion, Thomas
- Campra, Thomas André
- Canal, Marguerite
- Canteloube de Malaret, Joseph
- Cantó Francés, Juan
- Cantor, Otto
- Caplet, André
- Capllonch, M.
- Carissimi, Giacomo
- Carnicer y Batlle, Ramón
- Carpenter, John Alden
- Carr, Benjamin
- Casella, Alfredo
- Castel, José
- Castelnuovo-Tedesco, Mario
- Catalani, Alfredo
- Cavalli, Francesco
- Cesti, Pietro Marc’Antonio
- Chabrier, Emmanuel
- Chadwick, George Whitefield
- Chailley, Jacques
- Chaminade, Cécile
- Chanler, Theodore Ward
- Chapí, Ruperto
- Charles, Ernest
- Charpentier, Gustave
- Chausson, Ernest
- Cherubini, Luigi
- Choudens, Antony
- Chueca, Federico
- Ciampi, Francesco
- Cifra, Antonio
- Cilea, Francesco
- Cimador, Giambattista
- Cimara, Pietro
- Cimarosa, Domenico
- Clarke, Rebecca
- Clarke, Robert Coningsby
- Clough-Leighter, Henry
- Coates, Eric
- Coerne, Louis Adolphe
- Colbran, Isabella
- Coleridge-Taylor, Samuel
- Conti, Francesco Bartolomeo
- Converse, Charles Crozat
- Converse, Frederick Shepherd
- Corigliano, John
- Cornago, Juan
- Cornelius, Peter
- Costa y Nogueras, Vicente
- Costa, Sir Michael
- Cowen, Frederic Hymen
- Cras, Jean
- Crist, Bainbridge
- Cruz, Antonio de la
- Cui, César Antonovich
- Cumellas Ribó, J.
- Cumming, Richard Jackson
- Curschmann, Karl Friedrich
- Czerny, Carl
