| Schauwienhold, Friedhelm | Friedhelm Schauwienhold (Friedhelm Schauwienhold) | Director | 1973 - 1980 | 2 | |
| Stockley, Travis L. | Travis L. Stockley (Travis L. Stockley) | Director | 2001 | 1 | |
| Scott, Jerrold | Jerrold Scott (Jerrold Scott) | Director | 2002 | 1 | |
| Svavarsdóttir, Ása Hlín | Ása Hlín Svavarsdóttir (Ása Hlín Svavarsdóttir) | Director | 1993 | 1 | |
| Schwarz, Carl | Carl Schwarz (Carl Schwarz) | Director | 1917 | 1 | |
| Stockton Rand, Richard | Richard Stockton Rand (Richard Stockton Rand) | Director | 1999 | 1 | |
| Stopford, Clare | Clare Stopford (Clare Stopford) | Director | 1990 | 1 | |
| Siegerstetter, Charlotte | Charlotte Siegerstetter (Charlotte Siegerstetter) | Director | 2010 | 5 | |
| Stengel, Kal Freiherr von | Karl Freiherr von Stengel | Director | 1881 | 1 | |
| Sargent, Franklin | Franklin Sargent (Franklin Sargent) | Director | 1891 | 1 | |
| Seifert, Jakub | Jakub Seifert (Jakub Seifert) | Director | 1897 - 1899 | 2 | |
| Seidl, Hr. | Hr. Seidl | Director | 1879 | 1 | |
| Stollberg, J. G. | J. G. Stollberg | Director | 1900 - 1912 | 4 | |
| Stern, Kurt | Kurt Stern (Kurt Stern) | Director | 1905 - 1908 | 2 | |
| Simchowitz, Sascha | Sascha Simchowitz | Director | 1916 | 1 | |
| Senger, Heinz | Heinz Senger (Heinz Senger) | Director | 1918 | 1 | |
| Schroeder, Hermann Albert | Hermann Albert Schroeder (Hermann Albert Schroeder) | Director | 1925 | 1 | |
| Schneider, Carl | Carl Schneider (Carl Schneider) | Director | 1926 - 1940 | 4 | |
| Schwarz, Otto | Otto Schwarz (Otto Schwarz) | Director | 1927 - 1928 | 3 | |
| Schwitzky, Ernst Bernhard | Ernst Bernhard Schwitzky (Ernst Bernhard Schwitzky) | Director | 1927 | 1 | |
| Schmith, Iwan | Iwan Schmith (Iwan Schmith) | Director | 1932 | 1 | |
| Sax, Sergius | Sergius Sax (Sergius Sax) | Director | 1933 | 9 | |
| Schmitt, Saladin | Saladin Schmitt (Saladin Schmitt) | Director | 1933 - 1934 | 2 | |
| Schmiedhammer, Dr. | Dr. Schmiedhammer (Dr. Schmiedhammer) | Director | 1937 | 1 | |
| Scherler, Gerhart | Gerhart Scherler (Gerhart Scherler) | Director | 1937 | 1 | |
| Schnyder, Franz | Franz Schnyder (Franz Schnyder) | Director | 1940 | 1 | |
| Schuckel, Gert | Gert Schuckel (Gert Schuckel) | Director | 1945 | 1 | |
| Sanin, A. | A. Sanin (A. Sanin) | Director | 1901 | 1 | |
| Schmaha, Josef | Josef Schmaha (Josef Schmaha) | Director | 1907 - 1909 | 4 | |
| Sørlie, Kirsten | Kirsten Sørlie (Kirsten Sørlie) | Director | 1980 - 1995 | 4 | |
| Sjenovatsj, Sergej | Sergej Sjenovatsj (Sergej Sjenovatsj) | Director | 1996 | 1 | |
| Sandven, Wilhelm | Wilhelm Sandven (Wilhelm Sandven) | Director | 1997 | 1 | |
| Simensen, Knut | Knut Simensen (Knut Simensen) | Director | 2006 | 2 | |
| Sæther, Anne Mali | Anne Mali Sæther (Anne Mali Sæther) | Director | 2006 - 2007 | 2 | |
| Steigum, Jorid Bakken | Jorid Bakken Steigum (Jorid Bakken Steigum) | Director | 2009 | 2 | |
| Skjønnberg, Jo | Jo Skjønnberg (Jo Skjønnberg) | Director | 2009 | 4 | |
| Stranger, Marianne | Marianne Stranger (Marianne Stranger) | Director | 2012 | 1 | |
| Stuedal, Merete M. | Merete M. Stuedal (Merete M. Stuedal) | Director | 2013 | 2 | |
| Sekiguchi, Tsugio | Tsugio Sekiguchi (Tsugio Sekiguchi) | Director | 1918 | 1 | |
| Sergiev, E. | E. Sergiev (E. Sergiev) | Director | 1923 | 1 | |
| Stojtschev, P. K. | P. K. Stojtschev (P. K. Stojtschev) | Director | 1923 | 1 | |
| Szinetár, Miklós | Miklós Szinetár | Director | 1974 - 1978 | 2 | |
|
|
