| Krpan, Žarka | Žarka Krpan | Costume Designer | 2015 | 1 | |
| Kiss, Fabióla | Fabióla Kiss | Costume Designer | 2018 | 1 | |
| Kančeva, Ilijana | Ilijana Kančeva | Costume Designer | 2016 | 1 | |
| Kuş, Gamze | Gamze Kuş | Costume Designer | 2019 | 1 | |
| Korolija, Ivana | Ivana Korolija | Costume Designer | 1984 | 1 | |
| Knode, Charles | Charles Knode | Costume Designer | 1981 | 1 | |
| Kjellsdotter, Anna | Anna Kjellsdotter | Costume Designer | 2022 | 1 | |
| Krninova-Gruev, Aleksandra | Aleksandra Krninov-Gruev (Александра Крнинова-Груев) | Costume Designer | 2011 | 1 | |
| Korâgina, Žanna | Žanna Korâgina | Costume Designer | 2022 | 1 | |
| Kubekina, Oksana | Oksana Kubekina | Costume Designer | 2022 | 1 | |
| Komai, Yumiko | Yumiko Komai (駒井友美子) | Costume Designer | 2023 | 2 | |
| Karadeloglou, Maria | Maria Karadeloglou | Costume Designer | 2023 | 1 | |
| Kroschinske, Nina | Nina Kroschinske | Costume Designer | 2022 | 1 | |
| Klenk-Wulff, Sophie | Sophie Klenk-Wulff | Costume Designer | 2024 | 2 | |
| Kosmalski, Svenja | Svenja Kosmalski | Costume Designer | 2024 | 1 | |
| Klas, Eri | Eri Klas | Conductor | 1992 | 1 | 1 |
| Katajavuori, Esa | Esa Katajavuori | Conductor | 1994 | 1 | |
| Kohnke, Erich | Erich Kohnke | Conductor | 1932 | 1 | |
| Kießig, Georg | Georg Kießig | Conductor | 1939 | 1 | |
| Krannhals, Alexander | Alexander Krannhals | Conductor | 1940 | 1 | |
| Konwitschny, Franz | Franz Konwitschny | Conductor | 1940 | 1 | |
| Knudsen, Lennart, Nordløf | Lennart Nordløf Knudsen | Conductor | 1945 - 1946 | 2 | |
| Kragstad, Petter | Petter Kragstad | Conductor | 2013 - 2014 | 2 | |
| Kırhan, Yıldırım | Yıldırım Kırhan | Conductor | 1971 | 1 | |
| Kajanus, Robert | Robert Kajanus | Conductor | 1916 | 1 | |
| Kleiber, Erich | Erich Kleiber | Conductor | 1917 | 1 | |
| Kraus, Richard | Richard Kraus | Conductor | 1927 | 1 | |
| Karavaev, Yuri | Yuri Karavaev | Conductor | 2020 | 1 | |
| Knauf, Johanna | Johanna Knauf | Conductor | 2009 | 1 | |
| Kuhn, Hans Peter | Hans Peter Kuhn | Composer, Sound Designer | 1991 - 1993 | 7 | |
| Kalodiki, Georgia | Georgia Kalodiki | Composer, Sound Designer | 2012 | 2 | |
| Kluger, Daniel | Daniel Kluger | Composer, Sound Designer | 2016 - 2021 | 4 | |
| Kettley, Steve | Steve Kettley | Composer, Musician | 2004 | 10 | |
| Kürstner, Thomas | Thomas Kürstner | Composer, Musical Director | 2002 - 2012 | 2 | |
| Karahisaridis, Giannis | Giannis Karahisaridis | Composer, Director, Lighting Designer | 2008 | 3 | |
| Kaiser, Martin | Martin Kaiser | Composer, Conductor | 1896 | 2 | |
| Koppel, Herman, D. | Herman D. Koppel | Composer, Conductor | 1964 | 2 | |
| Kalinowska, Halina | Halina Kalinowska | Composer | 1989 | 1 | |
| Kardaś, Grzegorz | Grzegorz Kardaś | Composer | 1972 | 1 | |
| Khalaf, Raed | Raed Khalaf | Composer | 2000 | 1 | |
| Koder, Urban | Urban Koder | Composer | 1979 - 1992 | 2 | |
| Kunad, Rainer | Rainer Kunad | Composer | 1966 | 1 | |
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