| Kalmet, Leo | Leo Kalmet | Director | 1943 | 2 | |
| Kavanaugh, Rachel | Rachel Kavanaugh | Director | 2004 | 7 | |
| Kelling, Edgar | Edgar Kelling | Director | 1971 | 1 | |
| Kemppi, Raiku | Raiku Kemppi | Director | 1980 | 1 | |
| Khalifa, Ali | Ali Khalifa | Director | 2006 | 1 | |
| Kimming, Stephan, | Stephan Kimming | Director | 2004 | 1 | |
| Kindermann, Uta | Uta Kindermann | Director | 2005 - 2006 | 4 | |
| Kingsford-Brown, Jeff | Jeff Kingsford-Brown | Director | 2004 | 1 | |
| Klette, Michael | Michael Klette | Director | 1999 | 1 | |
| Knaus, Walter | Walter Knaus | Director | 1956 | 2 | |
| Koczanowicz, Zbigniew | Zbigniew Koczanowicz | Director | 1960 | 1 | |
| Koerber, Edith | Edith Koerber | Director | 2005 - 2007 | 3 | |
| Kornmüller, Jacqueline | Jacqueline Kornmüller | Director | 1999 - 2006 | 3 | |
| Kreidl, Heinz | Heinz Kreidl | Director | 1977 | 6 | |
| Krempel, Wolfram | Wolfram Krempel | Director | 1998 | 1 | |
| Krogh, Morten, | Morten Krogh | Director | 2001 - 2006 | 3 | |
| Krüger, Gert | Gert Krüger | Director | 2008 | 1 | |
| Kruse, Jürgen | Jürgen Kruse | Director | 1986 | 2 | |
| Kirke, Francis T. | Francis T. Kirke | Director | 2007 | 8 | |
| Kareman, Pamela Moller, | Pamela Moller Kareman | Director | 2006 | 2 | |
| Kayser, Karl Georg | Karl Georg Kayser | Director | 1997 - 2000 | 2 | |
| Korsan, Noemi | Noemi Korsan | Director | 1965 | 1 | |
| Kasuya, Toshiyuki | Toshiyuki Kasuya | Director | 1948 | 1 | |
| Kato, Nagaharu | Nagaharu Kato | Director | 1931 | 2 | |
| Kramer, Tim | Tim Kramer | Director | 2002 - 2003 | 2 | |
| Krasnjanskij, E. | E. Krasnjanskij | Director | 1938 | 1 | |
| Klētnieks, Nauris | Nauris Klētnieks | Director | 1974 | 1 | |
| Kimmig, Stephan, | Stephan Kimmig | Director | 2002 - 2009 | 14 | |
| Klinkenberg, Teuntje | Teuntje Klinkenberg | Director | 1986 | 1 | |
| Kilburn, Terence | Terence Kilburn | Director | 1962 - 1972 | 4 | |
| Koppel, Tina | Tina Koppel | Director | 2003 | 1 | |
| Kraft-Alexander, - | - Kraft-Alexander | Director | 1964 | 1 | |
| Kas'janova, Gennadija | Gennadija Kas'janova | Director | 2004 | 1 | |
| Klein, Ralph | Ralph Klein | Director | 1973 | 1 | |
| Knight, David | David Knight | Director | 1984 - 1988 | 2 | |
| Końarski, Emilian, | Emilian Końarski | Director | 1879 | 1 | |
| Kurz, August, | August Kurz | Director | 1887 | 1 | |
| Köchy, Max, | Max Köchy | Director | 1897 | 1 | |
| Knowles, Edwin, | Edwin Knowles | Director | 1898 | 1 | |
| Kilian, Eugen, | Eugen Kilian | Director | 1896 - 1904 | 17 | |
| Krempien, Fritz, | Fritz Krempien | Director | 1909 - 1910 | 1 | |
| Kronacher, Dr. Alwin, | Alwin Kronacher (Dr. Alwin Kronacher) | Director | 1911 - 1925 | 9 | |
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Contributors
