- Rosenfeld, Peter3
- Rostal, Leo1
- Rowe, Bertram1
- Roxbury, Ronald, 1946-19861
- Rudhyar, Dane, 1895-19851
- Rudiakov, Michael, 1934-20001
- Rudnitsky, Alvin1
- Running, Joseph1
- Rupert, Carol1
- Rzewski, Frederic1
- S?ul Sirip Kyohyang Akdan1
- Sagul, Edith A., 1917-20181
- Salzman, Theo1
- Sambuco, Gino2
- Sanders, Ernest H1
- Sandler, Myron, 1922-20001
- Sanromá, Jesús María3
- Saroyan, William, 1908-19811
- Sawyer, Elizabeth, 1931-20101
- Schiller, Allan (Violinist)1
- Schon, Kenneth1
- Schönherr, Max, 1903-19844
- Schubel, Max, 1932-20101
- Schubert, Peter, 1946-1
- Schulte, Rolf, 1949-1
- Schuman, Davis1
- Schuman, William, 1910-19921
- Schur, Maxim, 1907-19746
- Schwarz, Gerard, 1947-1
- Scott, Eric (Composer)1
- Seeber, Leonard1
- Seletsky, Harold1
- Serebrier, José, 1938-1
- Serly, Tibor1
- Shainman, Irwin, 1921-20121
- Shanet, Howard8
- Shapiro, Don1
- Shapiro, Wallace1
- Sheinkman, Mordechai1
- Sherman, Guelda1
- Sherry, Fred3
- Shevelov, Avram1
- Shinohara, Makoto1
- Shulman, Harry1
- Shuman, Mark1
- Sielska, Marya1
- Silva, Luigi, 1903-19611
- Silverman, Robert, 1938-1
- Silvermine String Quartet1
- Simms, Bryan R1
- Simon, Louis (Violinist)1
- Simons, Netty1
- Sims, Zoot2
- Singer, André (Composer)1
- Singleton, Alvin, 1940-1
- Sixfin, Leslie1
- Smiles, Harry (Oboe player)1
- Smit, Leo, 1921-19991
- Smith, Andre1
- Smith, Carleton Sprague, 1905-19941