| Kurhaus (Großer Saal) | Kurhaus (Großer Saal) | Germany, Bad Soden am Taunus | 1963-11-06 | -- | 1963 | 1 | |
| Kammerspiele Berlin | Kammerspiele Berlin | Germany, Berlin (Mitte), Schumannstr. 13a | 1906-11-08 | -- | 1906–2003 | 15 | |
| Korgen | Korgen | Norway, Korgen | -- | -- | | | |
| Kalundborg | Kalundborg | Denmark, Kalundborg | -- | -- | | | |
| Kravis Center | Kravis Center | United States, West Palm Beach, 701 Okeechobee Blvd | 2010-01-21 | 2010-01-22 | 2010 | 1 | |
| Krajské oblastní divadlo Olomouc | Krajské oblastní divadlo Olomouc | Czech Republic, Olomouc | -- | -- | | | |
| Katoto Secondary School | Katoto Secondary School | Malawi, Katoto | 2006-06-04 | -- | 2006 | 1 | |
| Kolozsvari Nemzeti Színház | Kolozsvari Nemzeti Színház | Romania, Cluj-Napoca | 1889-12-09 | 1931-03-31 | 1889–1944 | 10 | |
| Kleve | Kleve | Germany, Kleve | 2001-10-04 | -- | 2001 | 1 | |
| Kulturbund Deutscher Juden | Kulturbund Deutscher Juden | Germany, Berlin | 1934-03-05 | -- | 1934 | 1 | |
| Kagoshima City Central Public Hall | Kagoshima City Central Public Hall | Japan, Kagoshima | 1986-05-23 | -- | 1986 | 1 | |
| Kommunehuset | Kommunehuset | Norway, Nannestad | 1969-02-14 | -- | 1969–1978 | 5 | |
| Kammerspiele in der Böttcherstraße | Kammerspiele in der Böttcherstraße | Germany, Bremen, Böttcherstraße | 1982-01-20 | -- | 1982 | 1 | |
| Kattateatret | Kattateatret | Norway, Oslo, Ullevålsveien 31 | 2003-01-07 | 2003-01-18 | 2003 | 1 | |
| Kinoen | Kinoen | Norway, Harstad | 1959-02-26 | 1959-02-27 | 1959 | 1 | |
| Khedivial Theatre | Khedivial Theatre | Egypt, Cairo, EL Borg Gezira | 1892-03-15 | -- | 1892 | 1 | |
| Kingston Library | Kingston Library | United States, Kingston, 11212 NE State Hwy 104 | 2006-11-05 | -- | 2006 | 1 | |
| Královské zemské České divadlo | Královské zemské České divadlo | Czech Republic, Prague | 1878-04-15 | -- | 1878 | 1 | |
| Kumla Folkets Hus | Kumla Folkets Hus | Sweden, Kumla, Skolvägen 12 | 2002-04-27 | -- | 2002 | 1 | |
| Katrineholm | Katrineholm | Sweden, Katrineholm | 1936-10-24 | 2019-09-18 | 1936–2019 | 3 | |
| Karcag | Karcag | Hungary, Karcag | -- | -- | | | |
| Karthika Thirunal Theatre | Karthika Thirunal Theatre | India, Thiruvananthapuram, East fort | 2011-06-03 | -- | 2011 | 1 | |
| Kearney Opera House | Kearney Opera House | United States, Kearney | 1905-05-15 | 1905-05-15 | 1905 | 1 | |
| Kaimscher Konzertsaal | Kaimscher Konzertsaal | Germany, Munich, Türkenstraße 5 | 1896-02-27 | -- | 1896 | 1 | |
| Komárno | Komárno | Slovak Republic, Komárno | 1926-11-19 | -- | 1926–1938 | 2 | |
| Königliches Schloßtheater Ansbach | Königliches Schloßtheater Ansbach | Germany, Ansbach | 1894-01-05 | -- | 1894 | 1 | |
| Kleist-Theater | Kleist-Theater | Germany, Frankfurt an der Oder, Gerhart-Hauptmann Strasse | 1994-04-23 | -- | 1994 | 1 | |
| Kragerø | Kragerø | Norway, Kragerø | 1889-02-20 | 1889-02-25 | 1889–1958 | 3 | |
| Konigliches Hoftheater Dresden-Neustadt | Konigliches Hoftheater Dresden-Neustadt | Germany, Dresden | 1876-09-27 | 1901-03-04 | 1876–1901 | 10 | |
| Kulttuuritehdas Korjaamo | Kulttuuritehdas Korjaamo | Finland, Helsinki | -- | -- | | | |
| Karlshamns Teater | Karlshamns Teater | Sweden, Karlshamn | 1880-06-21 | -- | 1880 | 1 | |
| Karuss skole | Karuss skole | Norway, Kristiansand, Kristiansand | 2006-10-19 | -- | 2006 | 1 | |
| Kostroma | Kostroma | Russia, Kostroma | 1902-- | -- | 1902 | 1 | |
| Kinoteatret | Kinoteatret | Norway, Lillestrøm | 1952-02-12 | -- | 1952 | 1 | |
| Kongsvinger | Kongsvinger | Norway, Kongsvinger | 1952-03-11 | -- | 1952–2005 | 10 | |
| Klosterøya, PM7 | Klosterøya, PM7 | Norway, Skien, Union bruk | 2009-06-03 | 2015-03-14 | 2009–2015 | 6 | |
| Kungsör | Kungsör | Sweden, Kungsör | 1993-10-15 | -- | 1993 | 1 | |
| Kilden Teater- og Konserthus | Kilden Teater- og Konserthus | Norway, Kristiansand, Sjølystveien 2 | 2012-09-27 | 2019-09-02 | 2012–2019 | 9 | |
| Konzert- und Theatersaal, Nordhorn | Konzert- und Theatersaal, Nordhorn | Germany, Nordhorn, Ootmarsumer Weg 14 | 2010-03-12 | -- | 2010–2018 | 2 | |
| Kelemen László Kamaraszínház | Kelemen László Kamaraszínház | Hungary, Kecskemét, Katona József tér 8. | 1996-02-02 | -- | 1996 | 1 | |
| Kärnten | Kärnten | Austria | -- | -- | | | |
| Kyoto Kaikan Hall | Kyoto Kaikan Hall (Kyoto Kaikan) | Japan, Kyoto, 13 Sakyo-ku | 1959-12-04 | 1959-12-05 | 1959–1971 | 4 | |
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