| Kulturhuset | Kulturhuset | Norway, Tromsø, Erling Bangsunds plass 1 | 1987-09-02 | 2015-11-27 | 1987–2022 | 13 | |
| Kurhaus am Park | Kurhaus am Park | Germany, Isny, Schloßstraße 5 | 2006-02-19 | -- | 2006 | 1 | |
| Kherson | Kherson | Ukraine, Kherson | 1902-11-29 | 1904-01-27 | 1902–1904 | 6 | |
| Kulturzentrum Brotfabrik Bonn | Kulturzentrum Brotfabrik Bonn | Germany, Bonn | 2016-05-12 | 2016-10-29 | 2016 | 1 | |
| Komárom | Komárom | Hungary, Komárom | 1925-03-25 | -- | 1925–1935 | 2 | |
| Kulturhuset Zahl | Kulturhuset Zahl | Norway, Nesna, Nesna | 2009-04-29 | -- | 2009 | 1 | |
| Korshch Teatr | Korshch Teatr | Russia, Moscow | 1892-01-01 | -- | 1892–1904 | 2 | |
| Krasnodarski molodežnjij teatr | Krasnodarski molodežnjij teatr (Krasnodar Youth Theater) | Russia, Krasnodar, Krasnodar Krai, Ulitsa Mitrofana Sedina, 28 | 2016-10-06 | -- | 2016 | 1 | |
| Kinoen | Kinoen | Norway, Verdal | 1961-02-14 | -- | 1961–1971 | 2 | |
| Kilden | Kilden | Norway, Tønsberg | 1960-03-23 | 1963-03-13 | 1960–1965 | 4 | |
| Kontraskjæret | Kontraskjæret | Norway, Oslo, Oslo | 2012-08-25 | -- | 2012 | 1 | |
| Kautokeino | Kautokeino | Norway, Kautokeino | 1990-10-05 | -- | 1990–2001 | 2 | |
| Krasnapolsky | Krasnapolsky | Netherlands, Amsterdam | 1938-03-20 | -- | 1938 | 1 | |
| Klubhaus i Berlin-Spandau | Klubhaus i Berlin-Spandau | Germany, Berlin, Westerwaldstr. 13 | 2002-09-20 | 2002-10-06 | 2002 | 1 | |
| Kurtheater Salzbrunn | Kurtheater Salzbrunn | Poland, Szczawno-Zdrój | 1903-07-10 | -- | 1903 | 1 | |
| Königliches Schauspielhaus | Königliches Schauspielhaus | Germany, Berlin, Gendarmenmarkt | 1889-03-04 | 1914-02-19 | 1889–1940 | 17 | |
| Kreeger Theater | Kreeger Theater | United States of America, Washington D.C., 1101 6th St SW | 1986-02-28 | 1986-04-20 | 1986 | 1 | |
| K3N Stadthalle Nürtingen | K3N Stadthalle Nürtingen | Germany, Nürtingen, Heiligkreuzstraße 4 | 2009-02-02 | -- | 2009–2015 | 2 | |
| Kulturfabriken | Kulturfabriken, Liljeholmen | Sweden, Stockholm, Liljeholmen | 1997-03-01 | -- | 1997 | 1 | |
| Kvinesdal Kulturhus | Kvinesdal Kulturhus | Norway, Kvinesdal | 1997-11-21 | 2015-09-20 | 1997–2015 | 5 | |
| Kokkolan Kaupunginteatteri | Kokkolan Kaupunginteatteri | Finland, Kokkola, Torikatu | 1921-08-23 | 1952-- | 1921–1983 | 3 | |
| Kinder- und Jugendtheater am Landestheater Tübingen | Kinder- und Jugendtheater am Landestheater Tübingen | Germany, Tübingen, Eberhardstraße 6 | 2010-04-10 | 2011-05-14 | 2010 | 1 | |
| King’s Head Theatre | King’s Head Theatre | England, London, 115 Upper Street | 1996-06-19 | -- | 1996 | 1 | |
| Kunsthøgskolen | Kunsthøgskolen | Norway, Oslo, Fossveien 24 | 2003-10-22 | 2024-10-24 | 2003–2024 | 8 | |
| Koninklijke Nederlandse Schouwburg | Koninklijke Nederlandse Schouwburg | Belgium, Gent, Sint-Baafsplein Square | 1956-12-11 | 1996-10-26 | 1956–1996 | 3 | |
| Kulturni centar Travno | Kulturni centar Travno (Cultural Center Travno) | Croatia, Zagreb, Božidara Magovca 17 | 2021-03-01 | -- | 2021 | 1 | |
| Kardam (Arman) | Кардам (Kardam) | Bulgaria, Kardam | -- | -- | | | |
| Kino Grenå | Kino Grenå | Denmark, Grenå, Østergade 7 | 2002-10-08 | -- | 2002 | 1 | |
| Kjøllefjord | Kjøllefjord | Norway, Kjøllefjord | 1970-09-14 | -- | 1970 | 1 | |
| Kongsberg | Kongsberg | Norway, Kongsberg | 1966-09-07 | 1996-03-15 | 1966–1999 | 7 | |
| Kristiania Norske Theater | Kristiania Norske Theater | Norway, Oslo, Møllergata 1 | 1858-11-24 | 1859-04-13 | 1858–1859 | 3 | |
| Kleine Bühne | Kleine Bühne | Czech Republic, Prague | 1932-04-27 | -- | 1932 | 1 | |
| Kokkola | Kokkola | Finland, Kokkola | -- | -- | | | |
| Kurhausbühne | Kurhausbühne | Germany, Baden Baden | 1919-01-11 | -- | 1919–1925 | 10 | |
| Kleines Theater Bargteheide | Kleines Theater Bargteheide | Germany, Bargteheide, Hamburger Str. 3 | 2007-02-11 | -- | 2007 | 1 | |
| Kleist Forum | Kleist Forum | Germany, Frankfurt (Oder), Platz der Einheit 1 | 2006-12-09 | -- | 2006 | 1 | |
| Kirche Schönau | Kirche Schönau | Switzerland, Thun | 1985-11-29 | 1985-11-30 | 1985 | 1 | |
| Kammerspiele Charlottenburg | Kammerspiele Charlottenburg | Germany, Berlin | 1945-11-02 | -- | 1945 | 1 | |
| Kulturzentrum Frankental | Kulturzentrum Frankental | Germany, Stolberg, Frankentalstraße 3 | 2002-12-04 | 2011-04-14 | 2002–2011 | 4 | |
| Kokomo | Kokomo | United States of America, Kokomo | 1903-10-29 | 1903-10-29 | 1903 | 1 | |
| Kinoen, Longyearbyen | Kinoen, Longyearbyen | Norway, Svalbard | 1979-11-04 | -- | 1979 | 1 | |
| Kulturhaus Osterfeld | Kulturhaus Osterfeld | Germany, Pforzheim, Osterfeldstraße 12 | 2007-03-29 | 2007-03-28 | 2007 | 1 | |
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