| Krassowski, Feliks | Feliks Krassowski | Designer | 1922 - 1923 | 2 | |
| Kazimierowski, Eugeniusz | Eugeniusz Kazimierowski | Designer | 1923 | 1 | |
| Korsbæk, Nadia, Nabil | Nadia Nabil Korsbæk | Designer | 2013 | 1 | |
| Keks, Inge, Reiner | Inge Reiner Keks | Designer | 1978 | 1 | |
| Kousi, Lea | Lea Kousi | Designer | 1993 | 1 | |
| Kautsky, Hans | Hans Kautsky | Designer | 1914 | 1 | |
| Kielwagen, Jefferson | Jefferson Kielwagen | Designer | 2017 | 1 | |
| Käser, Martin | Martin Käser | Designer | 2018 | 5 | |
| Krötsch, Isabelle | Isabelle Krötsch | Designer | 2017 | 1 | |
| Kálmán, Eszter | Eszter Kálmán | Designer | 2018 | 1 | |
| Kraljić, Irena | Irena Kraljić | Designer | 2016 | 1 | |
| Koso, Ištvan | Ištvan Koso | Designer | 1989 | 1 | |
| Kostovski, Branko | Branko Kostovski | Designer | 1957 - 1976 | 2 | |
| Kuznecov, F. | F. Kuznecov | Designer | 1957 | 1 | |
| Krukjov, F. | F. Krjukov | Designer | 1958 | 1 | |
| Konjaev, Aleksandar | Aleksandar Konjaev | Designer | 2019 | 1 | |
| Kazakov-Trojanskij, P. | P. Kazakov-Trojanskij | Designer | 1962 | 1 | |
| Kurilko, M. | M. Kurilko | Designer | 1957 | 1 | |
| Kovalenko, Evgenij | Evgenij Kovalenko | Designer | | 1 | |
| Kostin, K.K. | K.K. Kostin | Designer | 1908 | 1 | |
| Kopilova, Anastasia | Anastasia Kopilova | Designer | 2020 | 1 | |
| Kazanow, Stuart C. | Stuart C. Kazanow | Designer | 2020 | 1 | |
| Kloukinas, Michalis | Michalis Kloukinas | Designer | 2020 | 1 | |
| Knutsdotter, Mona | Mona Knutsdotter | Designer | 2020 | 1 | |
| Klein, Christian | Christian Klein | Designer | 2020 | 1 | |
| Køster, Kristine | Kristine Køster | Designer | 2013 | 1 | |
| Kuhnlein, Sebastian | Sebastian Kuhnlein | Designer | 2015 | 1 | |
| Karge, Otto | Otto Karge | Designer | 1935 | 1 | |
| Kostina, K. | K. Kostina | Designer | 1918 | 1 | |
| Kirigin, Zdravka Ivandija | Zdravka Ivandija Kirigin | Designer | 2021 | 1 | |
| Kniewald, Matej | Matej Kniewald | Designer | 2021 | 1 | |
| Keller, Markus | Markus Keller | Designer, Director | 2005 - 2015 | 3 | |
| Kochańczyk, Marcel | Marcel Kochańczyk | Designer, Director | 1978 - 1979 | 4 | |
| Kreutzfeldt, Malte | Malte Kreutzfeldt | Designer, Director | 2013 | 2 | |
| Kirchner, Alfred | Alfred Kirchner | Designer, Director | 1977 - 2013 | 7 | |
| Kahn, Catherine | Catherine Kahn | Designer, Director | 2004 - 2005 | 10 | |
| Kaul, Bansi | Bansi Kaul | Designer, Director | 2006 | 2 | |
| Kokotović, Nada | Nada Kokotović | Designer, Director | 2006 - 2007 | 4 | |
| Komm, Matthias | Matthias Komm | Designer, Director | 2000 | 2 | |
| Kiss, László Felhőfi | László Felhőfi Kiss | Designer, Director | 1999 | 2 | |
| Kudas, Lisa | Lisa Kudas | Designer, Lighting Designer | 2006 - 2009 | 12 | |
| Krajec, David R. | David R. Krajec | Designer, Lighting Designer | 1993 - 1997 | 4 | |
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