| Kurhaus (Großer Saal) | Kurhaus (Großer Saal) | Germany, Bad Soden am Taunus | 1963-11-06 | -- | 1963 | 1 | |
| Kutaisi | Kutaisi | Georgia, Kutaisi | 1898-02-20 | -- | 1898 | 1 | |
| Kelly's Theatre | Kelly's Theatre | England, Liverpool, Paradise Street | 1910-09-26 | -- | 1910 | 3 | |
| Kleist-Theater | Kleist-Theater | Germany, Frankfurt an der Oder, Gerhart-Hauptmann Strasse | 1994-04-23 | -- | 1994 | 1 | |
| Konzert-Aula Kamen | Konzert-Aula Kamen | Germany, Kamen, Hammer Str. 19 | 2001-02-19 | -- | 2001 | 1 | |
| Komediehuset | Komediehuset | Norway, Bergen, Engen 39 | 1853-01-02 | 1928-10-05 | 1853–1928 | 92 | |
| Kisvárdai Várszínház és Művészetek Háza | Kisvárdai Várszínház és Művészetek Háza | Hungary, Kisvárda, Flórián tér 20 | 2018-06-28 | -- | 2018 | 1 | |
| Kvinesdal Kulturhus | Kvinesdal Kulturhus | Norway, Kvinesdal | 1997-11-21 | 2015-09-20 | 1997–2015 | 5 | |
| Kurhaus Bad Kreuznach | Kurhaus Bad Kreuznach | Germany, Bad Kreuznach, Kurhausstraße 28 | 2002-05-14 | -- | 2002 | 1 | |
| Kulturni centar Zrenjanina | Kulturni centar Zrenjanina (Zrenjanin Cultural Center) | Serbia, Zrenjanin, Narodne omladine 1 | -- | -- | | | |
| Kunsthøgskolen | Kunsthøgskolen | Norway, Oslo, Fossveien 24 | 2003-10-22 | 2012-09-29 | 2003–2012 | 6 | |
| King's Theatre | King's Theatre | Scotland, Edinburgh, 2 Leven Street | 1986-09- | 2021-10-23 | 1986–2021 | 5 | |
| Khedivial Opera House | Khedivial Opera House | Egypt, Cairo, EL Borg Gezira | 1892-03-15 | -- | 1892–1953 | 2 | |
| Kitasato Auditorium | Kitasato Auditorium | Japan, Tokyo | 1958-10-14 | -- | 1958 | 1 | |
| Kiln Theatre | Kiln Theatre | England | 2019-05-30 | 2019-07-06 | 2019 | 1 | |
| Královské zemské České divadlo | Královské zemské České divadlo | Czech Republic, Prague | 1878-04-15 | -- | 1878 | 1 | |
| Kurtheater, Norderney | Kurtheater, Norderney | Germany, Norderney | 2010-03-09 | -- | 2010 | 1 | |
| Kath. Pfarrzentrum | Kath. Pfarrzentrum | Germany, Ueberlingen | 1980-03-15 | -- | 1980 | 1 | |
| Kammerspiele Charlottenburg | Kammerspiele Charlottenburg | Germany, Berlin | 1945-11-02 | -- | 1945 | 1 | |
| Kaufbeuren | Kaufbeuren | Germany, Swabia, Bavaria | 1878-- | -- | 1878 | 1 | |
| Krasnyj fakel | Krasnyj fakel (Red torch) | Russia, Novosibirsk, Ulitsa Lenina, 19 | -- | 2021-12-19 | 1964–2021 | 4 | |
| Kauno Valstybinis Akademinis Dramos Teatras | Kauno Valstybinis Akademinis Dramos Teatras | Lithuania, Kaunas, Laisvės al. 71 | 1998-03-17 | -- | 1998 | 1 | |
| Kommunestyresalen, Rådhuset | Kommunestyresalen, Rådhuset | Norway, Grimstad, Arendalsveien 23 | 2009-10-28 | -- | 2009 | 1 | |
| Kaimscher Konzertsaal | Kaimscher Konzertsaal | Germany, Munich, Türkenstraße 5 | 1896-02-27 | -- | 1896 | 1 | |
| Katholisches Pfarreizentrum Heilig Geist | Katholisches Pfarreizentrum Heilig Geist | Switzerland, Wetzikon, Langfurrenstrasse 10 | 2010-05-16 | -- | 2010 | 1 | |
| Kreeger Theater | Kreeger Theater | United States of America, Washington D.C., 1101 6th St SW | 1986-02-28 | 1986-04-20 | 1986 | 1 | |
| Kentucky, The | The Kentucky | United States of America, Lexington | 1903-12-17 | -- | 1903 | 1 | |
| Kőszeg | Kőszeg | Hungary, Kőszeg | 1923-04-18 | -- | 1923–1937 | 8 | |
| Krokom | Krokom | Sweden, Krokom | 1989-09-27 | 1989-09-27 | 1989 | 1 | |
| Königlich Städtisches Theater Olmütz | Königlich Städtisches Theater Olmütz | Czech Republic, Olomouc | 1879-10-08 | 1879-10-15 | 1879–1918 | 15 | |
| Kvelde skole | Kvelde skole | Norway, Larvik, Larvik | 2007-01-12 | -- | 2007 | 1 | |
| Komediteatern | Komediteatern | Sweden, Stockholm | 1936-11-11 | -- | 1936 | 1 | |
| Kulturhuset i Ytterjärna | Kulturhuset i Ytterjärna | Sweden, Järna, Kulturcentrum Järna | 2011-05-31 | -- | 2011 | 1 | |
| Kherson | Kherson | Ukraine, Kherson | 1902-11-29 | 1904-01-27 | 1902–1904 | 6 | |
| Kongsvinger | Kongsvinger | Norway, Kongsvinger | 1952-03-11 | -- | 1952–2005 | 10 | |
| Kunstencentrum De Vlasbloem | Kunstencentrum De Vlasbloem | Belgium, Nieuwkerken-Waas, Gyselstraat 9 | 2007-03-10 | 2007-03-31 | 2007 | 1 | |
| 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 | |
| Kaiserlich-königliches Theater in Salzburg | Kaiserlich-königliches Theater in Salzburg | Austria, Salzburg, Makartplatz | 1881-07-12 | -- | 1881–1891 | 3 | |
| Kinoen | Kinoen | Norway, Moss | 1952-02-14 | -- | 1952 | 1 | |
| Krasnodarski molodežnjij teatr | Krasnodarski molodežnjij teatr (Krasnodar Youth Theater) | Russia, Krasnodar, Krasnodar Krai, Ulitsa Mitrofana Sedina, 28 | 2016-10-06 | -- | 2016 | 1 | |
| Kungsör | Kungsör | Sweden, Kungsör | 1993-10-15 | -- | 1993 | 1 | |
| Kungsbacka | Kungsbacka | Sweden, Kungsbacka | 2006-10-22 | -- | 2006 | 1 | |
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