| Kelleher, Jacob | Jacob Kelleher | Director | 2022 | 1 | |
| Kilmurry, Mark | Mark Kilmurry | Director | 2022 | 1 | |
| Kara, Seleb | Seleb Kara | Director | 2023 | 1 | |
| Kraemer, Gabriela | Gabriela Kraemer | Director | 2023 | 1 | |
| Kelln, Mya | Mya Kelln | Director | 2023 - 2024 | 2 | |
| Kulyabin, Timofey Aleksandrovich | Timofey Aleksandrovich Kulyabin (Тимофей Александрович Кулябин) | Director | 2021 | 2 | |
| Kirwan, Ryan | Ryan Kirwan | Director | 2022 | 1 | |
| Kalaitzi, Glykeria | Glykeria Kalaitzi | Director | 2023 | 1 | |
| Kwok, Eliana | Eliana Kwok | Director | 2023 | 1 | |
| Kamil, Yusuf | Yusuf Kamil (Yūsuf Kāmil) | Director | 1953 | 1 | |
| Kwek, Luke | Luke Kwek | Director | 2014 | 1 | |
| Kowalski, Kuba | Kuba Kowalski | Director | 2019 | 1 | |
| Krinitsin, Vitaly | Vitaly Krinitsin (Виталий Криницин) | Director | 2020 | 1 | |
| Kuck, Gerd Leo | Gerd Leo Kuck | Director, Dramaturg | 1972 - 1996 | 4 | |
| Kissel, Hiltrud | Hiltrud Kissel | Director, Dramaturg | 1995 - 1996 | 3 | |
| Kooshk Jalali, Alireza | Alireza Kooshk Jalali | Director, Dramaturg, Translator | 2010 | 3 | |
| Keegan, Hugh | Hugh Keegan | Director, Lighting Designer | 1974 - 2008 | 2 | |
| Kuzmanich, Roberto | Roberto Kuzmanich | Director, Lighting Designer, Sound Designer | 2006 | 3 | |
| Kripalani, Pushan | Pushan Kripalani | Director, Musical Director | 2016 - 2017 | 6 | |
| Komisarjevsky, Theodore | Theodore Komisarjevsky | Director, Producer | 1921 - 1924 | 4 | 1 |
| Kvale, Helene | Helene Kvale | Director, Translator | 2008 | 2 | 1 |
| Krauß, Thomas | Thomas Krauß | Director, Translator | 2000 - 2007 | 6 | 1 |
| Karabekir, Jale | Jale Karabekir | Director, Translator | 2010 - 2018 | 17 | |
| Keir, Phillip | Phillip Keir | Director, Translator | 1984 | 2 | 1 |
| Koyuncuoğlu, Emre | Emre Koyuncuoğlu | Director, Translator | 2012 | 2 | |
| Kaiser, Matthias | Matthias Kaiser | Dramaturg | 1990 | 1 | |
| Kahl, Gisela | Gisela Kahl | Dramaturg | 1990 - 1992 | 2 | |
| Kaiser, Annette | Annette Kaiser | Dramaturg | 1998 | 1 | |
| Kersten, Renate | Renate Kersten | Dramaturg | 1988 - 1993 | 2 | |
| Kosidowski, Paul | Paul Kosidowski | Dramaturg | 2004 | 1 | 1 |
| Kross, Christa-Maria | Christa-Maria Kross | Dramaturg | 1986 | 1 | |
| Kullmann, Martina | Martina Kullmann | Dramaturg | 2002 - 2012 | 19 | |
| Kuhn, Natalie | Natalie Kuhn | Dramaturg | 2002 - 2003 | 2 | |
| Katzschmann, Christian | Christian Katzschmann | Dramaturg | 2010 - 2022 | 8 | |
| Kramer, Katrin | Katrin Kramer | Dramaturg | 2013 - 2014 | 3 | 1 |
| Kröplin, Wolfgang | Wolfgang Kröplin | Dramaturg | 1972 | 1 | |
| Kičiňová, Miriam | Miriam Kičiňová | Dramaturg | 2009 - 2011 | 3 | |
| Knudsen, Louise, Rahr | Louise Rahr Knudsen | Dramaturg | 2010 | 1 | |
| Kleine, Sven | Sven Kleine | Dramaturg | 2008 - 2013 | 2 | |
| Kunowski, Tilman | Tilman Kunowski | Dramaturg | 1986 | 1 | |
| Killingdalen, Lina | Lina Killingdalen | Dramaturg | 2014 | 1 | |
| Kötz, Franziska | Franziska Kötz | Dramaturg | 1992 - 2006 | 2 | 1 |
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