- Shanks, Edward
- Shapleigh, Bertram
- Shaw, Martin Edward Fallas
- Shelley, Percy Bysshe
- Shield, William
- Sibelius, Jean
- Siebel, Carl
- Siebert, Ferdinand
- Siegmeister, Elie
- Silbert, Johann Peter
- Silcher, Philipp Friedrich
- Silva y Valdés, Francisco
- Silvani, Francesco
- Silvestre, Paul Armand
- Simoni, Renato
- Simpson, Harold
- Simrock, Karl Joseph
- Sinding, Christian
- Sjögren, Johan Gustaf Emil
- Smalley, Roger
- Smith, Harry Bache
- Smith, John Christopher
- Smith, John Stafford
- Smith, Robert Bache
- Smith, Wilson George
- Sobejano y Ayala, José
- Sografi, Antonio Simone
- Sokolov, Nikolay Aleksandrovich
- Solera, Temistocle
- Solsona, Conrado
- Somervell, Sir Arthur
- Somma, Antonio
- Sommer, Hans
- Sonnleithner, Joseph
- Sor, Fernando
- Sorabji, Kaikhosru
- Soriano Fuertes, Mariano
- Soriano, Agustín Pérez
- Sousa, John Philip
- Speaks, Oley
- Spee von Langenfeld, Friedrich
- Spiering, Theodor
- Spohr, Friedrich
- Spohr, Louis (Ludwig)
- Spontini, Gaspare
- Squire, William Henry
- Stahl
- Stainer, John
- Stampiglia, Silvio
- Stanford, Sir Charles Villiers
- Stange, Max
- Stanton, B. Martin
- Starcke, O.
- Stark, Ludwig
- Stecchetti, Lorenzo
- Steele, Douglas
- Steffani, Agostino
- Stein, Leo
- Stephanie der Jüngere, Johann Gottlieb
- Stephens, James
- Stephens, Ward
- Sterbini, Cesare
- Stevens, Halsey
- Stevens, R. J. S.
- Stevenson, John Andrew
- Stevenson, Robert Louis
- Stewart, Mary
- Stickles, William
- Stieler, Karl
- Still, Robert
- Stolberg, Friedrich Leopold
- Stoll, Josef Ludwig
- Stolz, Adolf
- Stölzel, Gottfried Heinrich
- Storace, Stephen
- Storck, Philip Adam
- Storm, Theodor
- Stradella, Alessandro
- Straus, Oscar Nathan
- Strauss II, Johann
- Strauss, Richard
- Stravinsky, Igor
- Streicher, Theodor
- Streitmann, Carl
- Strickland, Lily
- Striggio, Alessandro
- Strozzi, Barbara
- Stuart, Paul
- Stucken, Frank Valentine van der
- Sturm, Julius
- Suckling, Sir John
- Sullivan, Sir Arthur
- Supriani, Francesco
- Surville, Clotilde de
- Symons, Arthur William
- Széchényi, Ludwig von
- Szulc, Jósef
