- New York String Trio1
- New York Wind Ensemble1
- New York Woodwind Quintet1
- Newlin, Dika, 1923-20061
- Newman, Joel, 1918-20141
- Newman, Morris1
- Nickel, Matilda1
- Nin-Culmell, Joaquín, 1908-20041
- Noellner, Walter1
- Noon, David, 1946-1
- Nordli, Douglas3
- Nordoff, Paul, 1909-19771
- Novak, Lionel1
- Nunn, Priscilla1
- Nunn, Thomas1
- Oddo, Louis1
- Ogihara, Toshitsugu, 1910-19921
- Oldfather, Christopher1
- Ondrejka, Ronald1
- Oppenheim, David, 1922-20071
- Oppens, Ursula3
- Orbón, Julián, 1925-19911
- Orchestre philharmonique de l'O.R.T.F1
- Orcutt, Eugene1
- Orgel, Irene1
- Ornest, Dorothy1
- Orrego-Salas, Juan, 1919-20191
- Ortiz, Pablo, 1956-1
- Ostbye, Niels, 1924-20181
- Ostrojinski, Lea1
- Ostrojinsky, Lea2
- Ostryniec, James P1
- Ottley, Jo Ann1
- Overton, Hall, 1920-19722
- Ovid, 43 B.C.-17 A.D. or 18 A.D.1
- Oxman, Ralph2
- Pachman, Maurice6
- Palma, Donald1
- Palma-Nidel, Susan1
- Palmer, Robert, 1915-20102
- Panitz, Murray1
- Paradise, Timothy1
- Parker, Horatio W. (Horatio William), 1863-19191
- Parker, Richard (Tenor)1
- Parloff, Michael2
- Parrott, Lalan7
- Passaro, Joseph1
- Payne, Dorothy1
- Peck, Russell, 1945-20091
- Pegago, Donald1
- Pellegrino, Ronald1
- Penn, William, 1943-1
- Perera, Ronald1
- Perle, George, 1915-20091
- Perlis, Vivian1
- Perras, John4
- Perry, Julia, 1924-19792
- Persichetti, Vincent, 1915-19871
- Persky, Stanley (Clarinetist)1
- Peskanov, Mark1