| Kleine Bühne | Kleine Bühne | Czech Republic, Prague | 1932-04-27 | -- | 1932 | 1 | |
| Kitakyushu | Kitakyushu | Japan, Kitakyushu | 1971-10-05 | -- | 1971 | 1 | |
| Kulturhaus Osterfeld | Kulturhaus Osterfeld | Germany, Pforzheim, Osterfeldstraße 12 | 2007-03-29 | 2007-03-28 | 2007 | 1 | |
| Korskirken | Korskirken | Norway, Bergen, Vågsbunnen | 2008-02-13 | 2008-02-14 | 2008 | 1 | |
| KKM Gönül Ülkü ve Gazanfer Özcan Sahnesi | KKM Gönül Ülkü ve Gazanfer Özcan Sahnesi | Turkey, Istanbul | 2023-11-23 | 2023-11-30 | 2023 | 1 | |
| Kellertheater des GZ Buchegg | Kellertheater des GZ Buchegg | Switzerland, Zürich, Bucheggstr. 93 | 2013-05-20 | 2013-05-17 | 2013 | 1 | |
| Kammerspiele im Lustspielhaus | Kammerspiele im Lustspielhaus | Germany, Hamburg | 1929-02-17 | -- | 1929 | 1 | |
| Kirchgemeindehaus Langnau | Kirchgemeindehaus Langnau | Switzerland, Langnau im Emmental, Dorfbergstrasse 2, | 1992-03-12 | 1992-03-21 | 1992 | 1 | |
| Konzert-Aula Kamen | Konzert-Aula Kamen | Germany, Kamen, Hammer Str. 19 | 2001-02-19 | -- | 2001 | 1 | |
| Kurhaus & Stadttheater Meran | Kurhaus & Stadttheater Meran | Italy, Meran, Freiheitsstr. 33 | 1997-10-15 | 1997-10-15 | 1997 | 1 | |
| Kennington Theatre | Kennington Theatre | England, London, Kennington Park Road | 1917-06-12 | -- | 1917 | 1 | |
| Kelsey Theatre | Kelsey Theatre | United States of America, Princeton Junction, 1200 Old Trenton Rd | 2013-10-24 | 2013-10-24 | 2013 | 1 | |
| Kulturhuset Zahl | Kulturhuset Zahl | Norway, Nesna, Nesna | 2009-04-29 | -- | 2009 | 1 | |
| Kunstforeningen GL STRAND | Kunstforeningen GL STRAND | Denmark, Copenhagen, Gammel Strand 48 | 2006-12-01 | 2006-12-02 | 2006 | 1 | |
| Kulturhuset i Toftlund | Kulturhuset i Toftlund | Denmark, Toftlund, Søren Jensens Vej 2 | 2002-03-08 | -- | 2002 | 1 | |
| Kasr Sakafet Elanfoshy | Kasr Sakafet Elanfoshy (Alexandria Culture Palace, Anfoushi Palace stage) | Egypt, Alexandria | 2024-04-18 | 2024-- | 2024 | 1 | |
| Kinolokalet | Kinolokalet | Norway, Åsgårdstrand | 1956-05-21 | -- | 1956 | 1 | |
| Kandy | Kandy | Sri Lanka, Kandy | 2006-09-26 | -- | 2006 | 1 | |
| Kurtheater Salzbrunn | Kurtheater Salzbrunn | Poland, Szczawno-Zdrój | 1903-07-10 | -- | 1903 | 1 | |
| Kirkebygden Skole | Kirkebygden Skole | Norway, Enebakk, Enebakk | 2005-11-02 | -- | 2005 | 1 | |
| Kulturscheune Fritzlar | Kulturscheune Fritzlar | Germany, Fritzlar | 2025-10-25 | -- | 2025 | 1 | |
| Kiel | Kiel | Germany, Kiel | 1952-01-11 | 1952-01-12 | 1952 | 1 | |
| Kinsarvik | Kinsarvik | Norway, Kinsarvik | 1966-09-01 | -- | 1966 | 1 | |
| Kulturfabriken | Kulturfabriken, Liljeholmen | Sweden, Stockholm, Liljeholmen | 1997-03-01 | -- | 1997 | 1 | |
| Krokom | Krokom | Sweden, Krokom | 1989-09-27 | 1989-09-27 | 1989 | 1 | |
| Kolpingsaal | Kolpingsaal | Germany, Neunkirchen/Saar | 1980-03-17 | -- | 1980 | 1 | |
| Katoto Secondary School | Katoto Secondary School | Malawi, Katoto | 2006-06-04 | -- | 2006 | 1 | |
| Kontraskjæret | Kontraskjæret | Norway, Oslo, Oslo | 2012-08-25 | -- | 2012 | 1 | |
| Kutaisi | Kutaisi | Georgia, Kutaisi | 1898-02-20 | -- | 1898 | 1 | |
| Knickerbocker Theatre | Knickerbocker Theatre | United States of America, New York, 1396 Broadway (West 38th Street) | 1905-03-07 | 1905-03- | 1905 | 1 | |
| Kostroma | Kostroma | Russia, Kostroma | 1902-- | -- | 1902 | 1 | |
| Kabinet múz | Kabinet múz | Czech Republic, Brno, Sukova 553/2 | 2004-02-14 | 2006-03-07 | 2004 | 1 | |
| Kjøllefjord | Kjøllefjord | Norway, Kjøllefjord | 1970-09-14 | -- | 1970 | 1 | |
| Kurtheater, Norderney | Kurtheater, Norderney | Germany, Norderney | 2010-03-09 | -- | 2010 | 1 | |
| Kulturhuset ASK | Kulturhuset ASK | Norway, Gjerdrum, Ask | 2001-11-02 | -- | 2001 | 1 | |
| Koncertpalæets store Sal | Koncertpalæets store Sal | Denmark, Copenhagen | 1894-12-11 | -- | 1894 | 1 | |
| Kongerød ungdomsskole | Kongerød ungdomsskole | Norway, Skien, Skien | 2006-09-27 | -- | 2006 | 1 | |
| Kitchen Theatre | Kitchen Theatre | United States of America, Ithaca, 417 West State Street | 2003-04-17 | 2003-05-10 | 2003 | 1 | |
| Kirche Schönau | Kirche Schönau | Switzerland, Thun | 1985-11-29 | 1985-11-30 | 1985 | 1 | |
| Küsnacht ZH | Küsnacht ZH | Switzerland | 2002-09-14 | -- | 2002 | 1 | |
| King’s Head Theatre | King’s Head Theatre | England, London, 115 Upper Street | 1996-06-19 | -- | 1996 | 1 | |
| Kleines Theater Schillerstrasse | Kleines Theater Schillerstrasse | Germany, Geesthacht, Schillerstraße 33 | 2005-11-11 | -- | 2005 | 1 | |
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