| Kaufbeuren | Kaufbeuren | Germany, Swabia, Bavaria | 1878-- | -- | 1878 | 1 | |
| Karmøy | Karmøy | Norway, Karmøy | 2005-05-30 | -- | 2005 | 1 | |
| Kauno Valstybinis Akademinis Dramos Teatras | Kauno Valstybinis Akademinis Dramos Teatras | Lithuania, Kaunas, Laisvės al. 71 | 1998-03-17 | -- | 1998 | 1 | |
| Kinder- und Jugendtheater Dortmund | Kinder- und Jugendtheater Dortmund | Germany, Dortmund, Sckellstraße 5-7, | 2000-03-04 | -- | 2000 | 1 | |
| Komische Oper Berlin | Komische Oper Berlin | Germany, Berlin, Behrenstraße 55 | 2016-04-07 | 2016-04-08 | 2016 | 1 | |
| Kitakyushu | Kitakyushu | Japan, Kitakyushu | 1971-10-05 | -- | 1971 | 1 | |
| Keck Theater, Occidental College | Keck Theater, Occidental College | United States of America, Los Angeles, Coons Rd | 2005-11-16 | 2005-11-20 | 2005 | 1 | |
| Kolding Teater | Kolding Teater | Denmark, Kolding, Skovbrynet 1 | 1880-03-03 | -- | 1880–2018 | 16 | |
| Kunsthalle | Kunsthalle | Germany, Singen, Ekkehardstr. 23 | 1997-10-18 | 1997-10-19 | 1997 | 1 | |
| Konzert- und Theatersaal, Nordhorn | Konzert- und Theatersaal, Nordhorn | Germany, Nordhorn, Ootmarsumer Weg 14 | 2010-03-12 | -- | 2010–2018 | 2 | |
| Krasnodarski molodežnjij teatr | Krasnodarski molodežnjij teatr (Krasnodar Youth Theater) | Russia, Krasnodar, Krasnodar Krai, Ulitsa Mitrofana Sedina, 28 | 2016-10-06 | -- | 2016 | 1 | |
| Kazan | Kazan | Russia, Republic of Tatarstan | 1908-10-01 | -- | 1908 | 1 | |
| Kongsvinger | Kongsvinger | Norway, Kongsvinger | 1952-03-11 | -- | 1952–2005 | 10 | |
| Kyōtofu Tachi bunka geijutsu kaikan | Kyōtofu Tachi bunka geijutsu kaikan (Kyoto Prefectural Center for Arts and Culture) | Japan, Kyoto | 1987-06-18 | 1987-06-20 | 1987 | 1 | |
| Kelly's Theatre | Kelly's Theatre | England, Liverpool, Paradise Street | 1910-09-26 | -- | 1910 | 3 | |
| Kielce | Kielce | Poland, Kielce | 1908-09- | -- | 1908–1918 | 4 | |
| Kommunestyresalen, Rådhuset | Kommunestyresalen, Rådhuset | Norway, Grimstad, Arendalsveien 23 | 2009-10-28 | -- | 2009 | 1 | |
| Kulturzentrum Eisenstadt | Kulturzentrum Eisenstadt | Austria, Eisenstadt, Franz Schubert-Platz 6 | 2013-02-26 | -- | 2013 | 2 | |
| Kaimscher Konzertsaal | Kaimscher Konzertsaal | Germany, Munich, Türkenstraße 5 | 1896-02-27 | -- | 1896 | 1 | |
| Kőszeg | Kőszeg | Hungary, Kőszeg | 1923-04-18 | -- | 1923–1937 | 8 | |
| Kneževo | Kneževo | Bosnia and Herzegovina | -- | -- | | | |
| Kruseløkka ungdomsskole | Kruseløkka ungdomsskole | Norway, Sarpsborg, Hans Nielsen Hauges gate 33 | 2006-10-24 | 2006-10-25 | 2006 | 1 | |
| Königlich Städtisches Theater Olmütz | Königlich Städtisches Theater Olmütz | Czech Republic, Olomouc | 1879-10-08 | 1879-10-15 | 1879–1918 | 15 | |
| Kulturhuset | Kulturhuset | Norway, Tromsø, Erling Bangsunds plass 1 | 1987-09-02 | 2015-11-27 | 1987–2022 | 13 | |
| Kutno | Kutno | Poland, Kutno | 1918-04- | -- | 1918 | 1 | |
| Kammerspiele Frankfurt | Kammerspiele Frankfurt | Germany, Frankfurt am Main, Neue Mainzer Straße 15 | 1983-12-14 | 2013-02-16 | 1983–2010 | 4 | |
| Key Theatre | Key Theatre | England, Peterborough, Embankment Road | 2014-02-05 | 2014-10-01 | 2014 | 2 | |
| Kulturbygget | Kulturbygget | Norway, Fagernes | 1981-11-06 | -- | 1981 | 1 | |
| Kongsberg Kino | Kongsberg Kino | Norway, Kongsberg, Nymoens Torg 3 | 1968-08-26 | 1993-02-16 | 1968–1993 | 3 | |
| Kazi Nazrul Islam Auditorium | Kazi Nazrul Islam Auditorium | Bangladesh, Rajshahi, University of Rajshahi | 2006-04-29 | -- | 2006 | 1 | |
| Kulturhuset i Toftlund | Kulturhuset i Toftlund | Denmark, Toftlund, Søren Jensens Vej 2 | 2002-03-08 | -- | 2002 | 1 | |
| K. k. und National-Theater Innsbruck | K. k. und National-Theater Innsbruck | Austria, Innsbruck | 1881-01-07 | 1881-01-12 | 1881 | 1 | |
| Kath. Pfarreizentrum | Kath. Pfarreizentrum | Switzerland, Windisch, Hauserstrasse 18 | 2011-04-29 | -- | 2011 | 1 | |
| Kulturni centar Travno | Kulturni centar Travno (Cultural Center Travno) | Croatia, Zagreb, Božidara Magovca 17 | 2021-03-01 | -- | 2021 | 1 | |
| Krajské oblastní divadlo Hradec Králové | Krajské oblastní divadlo Hradec Králové | Czech Republic, Hradec Králové | 1960-04-09 | -- | 1960 | 1 | |
| Kungsör | Kungsör | Sweden, Kungsör | 1993-10-15 | -- | 1993 | 1 | |
| Kalmar | Kalmar | Sweden, Kalmar | 1936-10-22 | 2018-05-16 | 1936–2018 | 4 | |
| Kath. Pfarrzentrum | Kath. Pfarrzentrum | Germany, Ueberlingen | 1980-03-15 | -- | 1980 | 1 | |
| Kulturhuset Halmstad | Kulturhuset Halmstad | Sweden, Halmstad, Furuvägen 41 | 2010-11-27 | -- | 2010 | 1 | |
| Ken Shin Kōriyama bunka sentā | Ken Shin Kōriyama bunka sentā (Koriyama City Cultural Center) | Japan, Fukushima, 1-2 Tsutsumishitamachi, Koriyama, Fukushima 963-8878, Japan | 2010-02-09 | -- | 2010 | 1 | |
| Kalita Humphreys Theater | Kalita Humphreys Theater | United States of America, Dallas, 3636 Turtle Creek Blvd | 2001-09-05 | 2018-07-07 | 2001–2018 | 2 | |
| Kammerbühne | Kammerbühne | Germany, Schwerin | -- | -- | | | |
|
|
