| Karpenisi, Spercheiada, Malaisina and other cities | Karpenisi, Spercheiada, Malaisina and other cities | Greece, Karpenisi, Spercheiada, Malaisina and ot | 1981-12-14 | 1981-12-29 | 1981 | 1 | |
| Kazi Nazrul Islam Auditorium | Kazi Nazrul Islam Auditorium | Bangladesh, Rajshahi, University of Rajshahi | 2006-04-29 | -- | 2006 | 1 | |
| Königliches Schauspielhaus | Königliches Schauspielhaus | Germany, Dresden, Ostra-Allee 27 | 1902-09-25 | 1921-04-19 | 1902–1918 | 25 | |
| Komediteatern | Komediteatern | Sweden, Stockholm | 1936-11-11 | -- | 1936 | 1 | |
| KCET (USA) | KCET (USA) | United States of America | 1990-01-01 | -- | 1990 | 1 | |
| Korsavadshallen | Korsavadshallen | Sweden, Simrishamn, Backgatan 50 | 2006-10-25 | -- | 2006 | 1 | |
| Kulturhuset Halmstad | Kulturhuset Halmstad | Sweden, Halmstad, Furuvägen 41 | 2010-11-27 | -- | 2010 | 1 | |
| Kvæfjord videregående skole | Kvæfjord videregående skole | Norway, Borkenes, Kvæfjord | 1997-11-21 | -- | 1997 | 1 | |
| Komárno | Komárno | Slovak Republic, Komárno | 1926-11-19 | -- | 1926–1938 | 2 | |
| Kuressaare | Kuressaare | Estonia, Kuressaare | -- | -- | | | |
| Kellertheater Nadelberg 6 | Kellertheater Nadelberg 6 | Switzerland, Basel, Nadelberg 6 | 2012-05-11 | 2012-06-03 | 2012 | 1 | |
| Koninklijke Nederlandse Schouwburg | Koninklijke Nederlandse Schouwburg | Belgium, Antwerpen | 1918-01-19 | 1992-03-29 | 1918–1992 | 7 | |
| Kinsarvik | Kinsarvik | Norway, Kinsarvik | 1966-09-01 | -- | 1966 | 1 | |
| Kino Helsinki | Kino Helsinki | Finland, Helsinki | 2000-03-29 | 2000-04-13 | 2000 | 1 | |
| Königliches Theater Cassel | Königliches Theater Cassel | Germany, Kassel | 1878-08-24 | -- | 1878–1889 | 2 | |
| KulturBahnhof Aalen | KulturBahnhof Aalen | Germany, Aalen, Georg-Elser-Platz 1, | 2024-03-02 | 2024-04-27 | 2024 | 1 | |
| Kitchen Theatre | Kitchen Theatre | United States of America, Ithaca, 417 West State Street | 2003-04-17 | 2003-05-10 | 2003 | 1 | |
| Kirby Memorial Theater | Kirby Memorial Theater | United States of America, Amerherst, 220 South Pleasant Street | 1940-01-11 | 2017-11-11 | 1940–2017 | 3 | |
| Kulturzentrum Frankental | Kulturzentrum Frankental | Germany, Stolberg, Frankentalstraße 3 | 2002-12-04 | 2011-04-14 | 2002–2011 | 4 | |
| Klagenfurt | Klagenfurt | Austria, Klagenfurt | -- | -- | | | |
| Kurhaus | Kurhaus | Germany, Bad Schwalbach, Goethepl. 4 | 2007-03-21 | -- | 2007 | 1 | |
| Kolvereid Samfunnshus | Kolvereid Samfunnshus | Norway, Kolvereid | 1961-02-11 | -- | 1961–1989 | 3 | |
| Kulturzentrum Großenhain | Kulturzentrum Großenhain | Germany, Grossenhain | 2009-01-18 | -- | 2009 | 1 | |
| Konzert Theater Coesfeld | Konzert Theater Coesfeld | Germany | 2012-03-07 | 2012-03-07 | 2012 | 1 | |
| Kattateatret | Kattateatret | Norway, Oslo, Ullevålsveien 31 | 2003-01-07 | 2003-01-18 | 2003 | 1 | |
| Kelemen László Kamaraszínház | Kelemen László Kamaraszínház | Hungary, Kecskemét, Katona József tér 8. | 1996-02-02 | -- | 1996 | 1 | |
| Kaiserliches Deutsches Hoftheater | Kaiserliches Deutsches Hoftheater St. Petersburg | Russia, Saint Petersburg | -- | -- | | | |
| Kulturzentrum Mattersburg | Kulturzentrum Mattersburg | Austria, Mattersburg, Wulkalände 2 | 2013-04-11 | -- | 2013 | 1 | |
| Kjevik | Kjevik | Norway, Kjevik | 1971-02-26 | 1971-02-27 | 1971 | 2 | |
| Kaluga | Kaluga | Russia, Kaluga | 1982-- | -- | 1982 | 1 | |
| Kimen kulturhus | Kimen kulturhus | Norway, Stjørdal, Sandgata 15 | 2015-10-11 | 2020-10-27 | 2015–2022 | 4 | |
| Kispest | Kispest | Hungary, Budapest | 1925-03-13 | -- | 1925 | 1 | |
| Kellertheater des GZ Buchegg | Kellertheater des GZ Buchegg | Switzerland, Zürich, Bucheggstr. 93 | 2013-05-20 | 2013-05-17 | 2013 | 1 | |
| Kyrenia | Kyrenia | Cyprus, Kyrenia | 1973-03-06 | -- | 1973–1974 | 2 | |
| Kilachand Theatre | Kilachand Theatre, DUCTAC | United Arab Emirates, Dubai | 2017-05-10 | 2017-05-13 | 2017 | 1 | |
| Kleine Bühne, Landschaftlicher Redoutensaal | Kleine Bühne, Landschaftlicher Redoutensaal | Austria, Linz | 1919-11-19 | 1920-03-13 | 1919–1920 | 4 | |
| Kongsberg Kino | Kongsberg Kino | Norway, Kongsberg, Nymoens Torg 3 | 1968-08-26 | 1993-02-16 | 1968–1993 | 3 | |
| Kelly's Theatre | Kelly's Theatre | England, Liverpool, Paradise Street | 1910-09-26 | -- | 1910 | 3 | |
| Kulturhuset Viften | Kulturhuset Viften | Denmark, Rødovre, Rødovre Parkvej 130 | 2002-03-21 | 2004-11-10 | 2002–2004 | 3 | |
| Kisvárdai Várszínház és Művészetek Háza | Kisvárdai Várszínház és Művészetek Háza | Hungary, Kisvárda, Flórián tér 20 | 2018-06-28 | -- | 2018 | 1 | |
| K3N Stadthalle Nürtingen | K3N Stadthalle Nürtingen | Germany, Nürtingen, Heiligkreuzstraße 4 | 2009-02-02 | -- | 2009–2015 | 2 | |
| Kragerø | Kragerø | Norway, Kragerø | 1889-02-20 | 1889-02-25 | 1889–1958 | 3 | |
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