- Moorman, Charlotte1
- Mordis, Gerald1
- Morel Campos, Juan, 1857-18961
- Morel Campos, Juan, 1857-1896. Sinfonia Puerto Rico1
- Morgenstern, Marvin2
- Morley, Hilda1
- Moross, Jerome, 1913-19831
- Morris, Franklin E., 1920-20181
- Morris, Robert, 1943-1
- Morris, Stephen M., 1944-1
- Moryl, Richard, 1929-1
- Moskowitz, Milton (Clarinetist)1
- Moss, Lawrence1
- Moss, Linda (Violist)1
- Mozart, Wolfgang Amadeus, 1756-17911
- Multer, Walton1
- Mumma, Gordon, 1935-1
- Murvitz, Moshe5
- Myers, Rick1
- Myrvik, Norman1
- NBC Symphony Orchestra1
- Nadien, David, 1926-20141
- Nagel, Robert3
- Nakagawa, Ryohei1
- National Institute of Arts and Letters (U.S.)1
- Neal, Margaret1
- Neidich, Irving1
- Neidlinger, Buell1
- Neill, Lou Anne1
- Nemerov, Howard1
- Nemiroff, Isaac1
- Neruda, Pablo, 1904-19731
- Neuman, Herman1
- New Art Wind Quintet2
- New York Brass Ensemble1
- New York Brass Quintet2
- New York Philharmonic1
- New York String Trio1
- New York Wind Ensemble1
- New York Woodwind Quintet1
- 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
- Ondrejka, Ronald1
- Oppenheim, David, 1922-20071
- Oppens, Ursula3
- Orbón, Julián, 1925-19911
- Orcutt, Eugene1
- Orgel, Irene1
- Ornest, Dorothy1
- Orrego-Salas, Juan, 1919-20191