| Karlstad | Karlstad | Sweden, Karlstad | 1879-10-15 | 1991-03-15 | 1879–1991 | 9 | |
| Korsavadshallen | Korsavadshallen | Sweden, Simrishamn, Backgatan 50 | 2006-10-25 | -- | 2006 | 1 | |
| Korsør Theater | Korsør Theater | Denmark, Korsør | 1902-11-11 | -- | 1902–1907 | 3 | |
| Kulturhuset Halmstad | Kulturhuset Halmstad | Sweden, Halmstad, Furuvägen 41 | 2010-11-27 | -- | 2010 | 1 | |
| Kitakyushu | Kitakyushu | Japan, Kitakyushu | 1971-10-05 | -- | 1971 | 1 | |
| Kalundborg | Kalundborg | Denmark, Kalundborg | -- | -- | | | |
| Kentucky, The | The Kentucky | United States of America, Lexington | 1903-12-17 | -- | 1903 | 1 | |
| Kolding Teater | Kolding Teater | Denmark, Kolding, Skovbrynet 1 | 1880-03-03 | -- | 1880–2018 | 16 | |
| Kolozsvari Nemzeti Színház | Kolozsvari Nemzeti Színház | Romania, Cluj-Napoca | 1889-12-09 | 1931-03-31 | 1889–1944 | 10 | |
| Koomesh Theater City Hall | Koomesh Theater City Hall | Iran, Semnan, Qods St, Semnan Province, Semnan | 2018-10-08 | 2020-02-20 | 2018–2020 | 2 | |
| Kansai Geijutsuza | Kansai Geijutsuza (Kansai Geijutsuza Studio) | Japan, Osaka | 1958-11-19 | -- | 1958 | 1 | |
| Kvelde skole | Kvelde skole | Norway, Larvik, Larvik | 2007-01-12 | -- | 2007 | 1 | |
| Kreiskulturraum | Kreiskulturraum | Germany, Kronach, Siechenangerstraße 13 | 2002-11-15 | 2002-11-17 | 2002 | 1 | |
| Kommunehuset | Kommunehuset | Norway, Nannestad | 1969-02-14 | -- | 1969–1978 | 5 | |
| Kazalište Marina Držiča | Kazalište Marina Držiča | Croatia, Dubrovnik, Pred Dvorom 3 | -- | -- | | 1 | |
| Komm. kinoen | Komm. kinoen | Norway, Steinkjer | 1952-03-07 | -- | 1952 | 1 | |
| Kristiansand Katedralskole | Kristiansand Katedralskole | Norway, Kristiansand, Jegersbergveien 1 | 2006-03-20 | -- | 2006 | 1 | |
| KVS Box | KVS Box | Belgium, Brussels, 9 Quai aux Pierres de Taille | 2005-03-03 | 2005-03-06 | 2005 | 1 | |
| Kultursalen | Kultursalen | Norway, Lakselv, Kirkeveien 26 | 2007-03-23 | -- | 2007–2009 | 2 | |
| Kristiansand | Kristiansand | Norway, Kristiansand | 1889-03-08 | 2005-03-16 | 1889–2005 | 15 | |
| Kauno Valstybinis Akademinis Dramos Teatras | Kauno Valstybinis Akademinis Dramos Teatras | Lithuania, Kaunas, Laisvės al. 71 | 1998-03-17 | -- | 1998 | 1 | |
| Kursaal Bad Honnef | Kursaal Bad Honnef | Germany, Bad Honnef, Hauptstraße 28 | 2007-03-14 | -- | 2007 | 1 | |
| Kulturzentrum Großenhain | Kulturzentrum Großenhain | Germany, Grossenhain | 2009-01-18 | -- | 2009 | 1 | |
| Kulturfabrikken Sortland | Kulturfabrikken Sortland | Norway, Sortland, Strandgata 1 | 2018-04-14 | -- | 2018 | 1 | |
| Kongsberg Kino | Kongsberg Kino | Norway, Kongsberg, Nymoens Torg 3 | 1968-08-26 | 1993-02-16 | 1968–1993 | 3 | |
| Karcag | Karcag | Hungary, Karcag | -- | -- | | | |
| Kulturzentrum Brotfabrik Bonn | Kulturzentrum Brotfabrik Bonn | Germany, Bonn | 2016-05-12 | 2016-10-29 | 2016 | 1 | |
| Klubben | Klubben | Norway, Tønsberg | 1968-08-29 | 1969-10-12 | 1968–1969 | 3 | |
| Komárom | Komárom | Hungary, Komárom | 1925-03-25 | -- | 1925–1935 | 2 | |
| Kulturhuset i Toftlund | Kulturhuset i Toftlund | Denmark, Toftlund, Søren Jensens Vej 2 | 2002-03-08 | -- | 2002 | 1 | |
| Kleist-Theater | Kleist-Theater | Germany, Frankfurt an der Oder, Gerhart-Hauptmann Strasse | 1994-04-23 | -- | 1994 | 1 | |
| Kinoen | Kinoen | Norway, Verdal | 1961-02-14 | -- | 1961–1971 | 2 | |
| Kirkenes Videregående skole | Kirkenes Videregående skole | Norway, Kirkenes, Sor-Varanger | 1997-10-22 | -- | 1997–2015 | 2 | |
| Kilden | Kilden | Norway, Tønsberg | 1960-03-23 | 1963-03-13 | 1960–1965 | 4 | |
| Kabinet múz | Kabinet múz | Czech Republic, Brno, Sukova 553/2 | 2004-02-14 | 2006-03-07 | 2004 | 1 | |
| Karaganda Regional Academic Kazakh Drama Theater | Karaganda, in the S. Seifullin Karaganda Regional Academic Kazakh Drama Theater | Kazakhstan, Karaganda | 2023-12-20 | 2023-12-20 | 2023 | 1 | |
| 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 | |
| Krúdy Kamaraszínház | Krúdy Kamaraszínház | Hungary, Nyíregyháza, Bessenyei tér 13 | 1995-12-15 | -- | 1995–2007 | 2 | |
| Kommunestyresalen, Rådhuset | Kommunestyresalen, Rådhuset | Norway, Grimstad, Arendalsveien 23 | 2009-10-28 | -- | 2009 | 1 | |
| Kurhaus (Großer Saal) | Kurhaus (Großer Saal) | Germany, Bad Soden am Taunus | 1963-11-06 | -- | 1963 | 1 | |
| Königlich Städtisches Theater Olmütz | Königlich Städtisches Theater Olmütz | Czech Republic, Olomouc | 1879-10-08 | 1879-10-15 | 1879–1918 | 15 | |
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