| Schäfer, Lutz | Lutz Schäfer (Lutz Schäfer) | Director | 2006 | 16 | |
| Scharoff, Pietro | Pietro Scharoff (Pietro Scharoff) | Director | 1934 | 7 | |
| Schmidl, Jens | Jens Schmidl (Jens Schmidl) | Director | 1997 - 2004 | 2 | |
| Schmidt, Jan | Jan Schmidt (Jan Schmidt) | Director | 1965 - 1976 | 2 | |
| Schöbel, Helfried | Helfried Schöbel (Helfried Schöbel) | Director | 1966 | 1 | |
| Scholter, Hugo | Hugo Scholter (Hugo Scholter) | Director | 1976 | 1 | |
| Schulz, Ronald | Ronald Schulz (Ronald Schulz) | Director | 1963 | 1 | |
| Schwartz, Maurice | Maurice Schwartz (Maurice Schwartz) | Director | 1918 | 1 | |
| Seale, Douglas | Douglas Seale (Douglas Seale) | Director | 1951 - 1971 | 2 | |
| Shaheen, Israfil | Israfil Shaheen (Israfil Shaheen) | Director | 1998 - 2006 | 3 | |
| Sher, Bartlett | Bartlett Sher (Bartlett Sher) | Director | 2003 | 1 | |
| Sherwood, George | George Sherwood (George Sherwood) | Director | 1966 - 1967 | 2 | |
| Siikala, Kaija | Kaija Siikala (Kaija Siikala) | Director | 1969 - 1979 | 2 | |
| Skalski, Stanisław | Stanisław Skalski (Stanisław Skalski) | Director | 1955 | 1 | |
| Smigiel, Aureliusz | Aureliusz Smigiel (Aureliusz Smigiel) | Director | 2000 | 1 | |
| Solgård, Kalle | Kalle Solgård (Kalle Solgård) | Director | 1987 | 1 | |
| Spasov, Krassimir | Krassimir Spasov (Krassimir Spasov) | Director | 2001 | 1 | |
| Stanĕk, Jaromír | Jaromír Stanĕk (Jaromír Stanĕk) | Director | 1958 - 1998 | 2 | |
| Stanisławski, Stanisław | Stanisław Stanisławski (Stanisław Stanisławski) | Director | 1910 | 1 | |
| Steinkamp, Rainer | Rainer Steinkamp (Rainer Steinkamp) | Director | 1987 | 1 | |
| Stepanian, Aramazd | Aramazd Stepanian (Aramazd Stepanian) | Director | 2007 | 1 | |
| Stern, Edward | Edward Stern (Edward Stern) | Director | 1981 | 1 | |
| Stettler, Steve | Steve Stettler (Steve Stettler) | Director | 1988 | 1 | |
| Steward, Margaret | Margaret Steward (Margaret Steward) | Director | 2002 | 1 | |
| Stillmark, Alexander | Alexander Stillmark (Alexander Stillmark) | Director | 1975 - 1993 | 2 | |
| Strehler, Giorgio | Giorgio Strehler (Giorgio Strehler) | Director | 1949 - 1951 | 2 | |
| Sweet, Bruce | Bruce Sweet (Bruce Sweet) | Director | 1979 | 1 | |
| Syxty, Antonio | Antonio Syxty (Antonio Syxty) | Director | 2000 - 2006 | 10 | 2 |
| Stabell, Thea | Thea Stabell (Thea Stabell) | Director | 1978 - 2002 | 78 | |
| Sabinskij, Tsjeslav Genrikovitsj | Tsjeslav Genrikovitsj Sabinskij (Tsjeslav Genrikovitsj Sabinskij) | Director | 1917 | 1 | |
| Slotwilski, Jozef | Jozef Slotwilski (Jozef Slotwilski) | Director | 1978 | 1 | |
| Sigurdsson, Thórhallur | Thórhallur Sigurdsson (Thórhallur Sigurdsson) | Director | 1999 | 5 | |
| Skjefstad, Bjørn | Bjørn Skjefstad (Bjørn Skjefstad) | Director | 1987 | 1 | |
| Salzer, F. | F. Salzer (F. Salzer) | Director | 1944 | 1 | |
| Sasaki, Takamaru | Takamaru Sasaki (Takamaru Sasaki) | Director | 1934 | 1 | |
| Stelter, Horst Alexander | Horst Alexander Stelter (Horst Alexander Stelter) | Director | 1977 | 1 | |
| Sevy, Bruce K. | Bruce K. Sevy (Bruce K. Sevy) | Director | 2002 | 1 | |
| Soto, Enrique Hernández | Enrique Hernández Soto (Enrique Hernández Soto) | Director | 1985 | 1 | |
| Semrád, Vladimír | Vladimír Semrád (Vladimír Semrád) | Director | 1961 - 1963 | 2 | |
| Seiffer, David A. | David A. Seiffer (David A. Seiffer) | Director | 1971 | 1 | |
| Sharrock, Thea | Thea Sharrock (Thea Sharrock) | Director | 2003 | 1 | |
| Smuckler, J.L. | J. L. Smuckler (J.L. Smuckler) | Director | 1935 | 1 | |
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