| Kellertheater Nadelberg 6 | Kellertheater Nadelberg 6 | Switzerland, Basel, Nadelberg 6 | 2012-05-11 | 2012-06-03 | 2012 | 1 | |
| Kherson | Kherson | Ukraine, Kherson | 1902-11-29 | 1904-01-27 | 1902–1904 | 6 | |
| Königliches Schauspielhaus | Königliches Schauspielhaus | Germany, Berlin, Gendarmenmarkt | 1889-03-04 | 1914-02-19 | 1889–1940 | 17 | |
| Katedralskolan | Katedralskolan | Sweden, Lund, Stora Södergatan 22 | 2006-10-20 | 2006-10-21 | 2006 | 1 | |
| Kōchi Kenritsu Bijutsukan | Kōchi Kenritsu Bijutsukan (The Museum of Art, Kochi) | Japan, Kochi, 353-2 Takasu Kochi-City | 2008-03-15 | -- | 2008 | 1 | |
| Kungliga Operan | Kungliga Operan | Sweden, Stockholm, Gustav Adolfs torg 2 | 2005-01-28 | 2006-02-27 | 2005–2006 | 2 | |
| Kraljevsko slovensko gledališče Ljubljana | Kraljevsko slovensko gledališče Ljubljana | Slovenia, Ljubljana | 1919-03-08 | -- | 1919 | 1 | |
| Kino Helsinki | Kino Helsinki | Finland, Helsinki | 2000-03-29 | 2000-04-13 | 2000 | 1 | |
| Kvinesdal | Kvinesdal | Norway, Kvinesdal | 1991-09-26 | -- | 1991–2005 | 3 | |
| Konferenscenter Safiren (Cosmos) | Konferenscenter Safiren (Cosmos) | Sweden, Katrineholm, Drottninggatan 19 | 2010-10-04 | -- | 2010 | 1 | |
| Kemin Kaupunginteatteri | Kemin Kaupunginteatteri | Finland, Kemi, Marina Takalon katu 3 | 1981-11-14 | -- | 1981 | 1 | |
| Kunsthalle | Kunsthalle | Germany, Singen, Ekkehardstr. 23 | 1997-10-18 | 1997-10-19 | 1997 | 1 | |
| Kongshaug musikkgymnas | Kongshaug musikkgymnas | Norway, Lepsøy, Os | 2006-03-25 | 2006-03-28 | 2006 | 1 | |
| Kinoen | Kinoen Farsund | Norway, Farsund | 1956-05-03 | -- | 1956–1987 | 7 | |
| Kazan | Kazan | Russia, Republic of Tatarstan | 1908-10-01 | -- | 1908 | 1 | |
| Kaaistudio’s | Kaaistudio’s | Belgium, Brussels, Onze-Lieve-Vrouw van Vaakstraat 81 | 1995-04-27 | 1995-05-29 | 1995–1999 | 3 | |
| Kautokeino | Kautokeino | Norway, Kautokeino | 1990-10-05 | -- | 1990–2001 | 2 | |
| King's College Great Hall | King's College Great Hall | New Zealand, Auckland, Golf Avenue, Otahuhu | 2002-08-07 | 2002-08-09 | 2002 | 1 | |
| Konak Sahnesi | İzmir Devlet Tiyatrosu Konak Sahnesi ( Izmir State Theatre Konak Stage) (Konak Stage) | Turkey, Izmir, Mithatpaşa Caddesi No: 110 Konak | -- | -- | | | |
| Körmend | Körmend | Hungary, Körmend | 1909-12-22 | 1922-12-29 | 1909–1922 | 3 | |
| Kongsberg | Kongsberg | Norway, Kongsberg | 1966-09-07 | 1996-03-15 | 1966–1999 | 7 | |
| Kongelige Teater, Det | Det Kongelige Teater | Denmark, Copenhagen, August Bournonvilles Passage 8 | 1870-02-16 | 2016-06-19 | 1870–2016 | 101 | |
| Kennington Theatre | Kennington Theatre | England, London, Kennington Park Road | 1917-06-12 | -- | 1917 | 1 | |
| Kulturzentrum Mattersburg | Kulturzentrum Mattersburg | Austria, Mattersburg, Wulkalände 2 | 2013-04-11 | -- | 2013 | 1 | |
| Krasnodarski molodežnjij teatr | Krasnodarski molodežnjij teatr (Krasnodar Youth Theater) | Russia, Krasnodar, Krasnodar Krai, Ulitsa Mitrofana Sedina, 28 | 2016-10-06 | -- | 2016 | 1 | |
| Kurhausbühne | Kurhausbühne | Germany, Baden Baden | 1919-01-11 | -- | 1919–1925 | 10 | |
| Kultur im Beaulieu | Kultur im Beaulieu | Switzerland, Murten, Prehlstrasse 13 | 2009-01-17 | 2009-02-07 | 2009 | 1 | |
| Kulturhuset Fagernes | Kulturhuset Fagernes | Norway, Fagernes, Jernbanevegen 22 | 1984-04-06 | 2021-02-12 | 1984–2022 | 13 | |
| Kneževo | Kneževo | Bosnia and Herzegovina | -- | -- | | | |
| Kotsøy | Kotsøy (Kotsoey) | Norway, Kotsøy | 1971-04-26 | -- | 1971 | 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 | |
| Kvaløya videregående skole | Kvaløya videregående skole | Norway, Kvaløysletta, Nedre Storvollen 75 | 1997-11-12 | -- | 1997 | 1 | |
| Kinokuniya hōru | Kinokuniya hōru (Kinokuniya Hall) | Japan, Tokyo, Kinokuniya Shinjuku Main Store 4F, 3-17-7 Shinjuku, Shinjuku-ku | 1965-12-07 | 1991-06-23 | 1965–1991 | 2 | |
| K. k. und National-Theater Innsbruck | K. k. und National-Theater Innsbruck | Austria, Innsbruck | 1881-01-07 | 1881-01-12 | 1881 | 1 | |
| Kramfors | Kramfors | Sweden, Kramfors | 1991-04-08 | 1991-04-08 | 1991 | 1 | |
| Krajské oblastní divadlo Hradec Králové | Krajské oblastní divadlo Hradec Králové | Czech Republic, Hradec Králové | 1960-04-09 | -- | 1960 | 1 | |
| Kulturhaus Chur | Kulturhaus Chur | Switzerland, Chur, Bienenstrasse 7 | 2002-04-26 | 2002-04-27 | 2002 | 1 | |
| Kulturhaus Knittelfeld | Kulturhaus Knittelfeld | Austria, Knittelfeld, Gaaler Straße 4 | 1993-10-13 | -- | 1993 | 1 | |
| Kalita Humphreys Theater | Kalita Humphreys Theater | United States of America, Dallas, 3636 Turtle Creek Blvd | 2001-09-05 | 2018-07-07 | 2001–2018 | 2 | |
| Kinokuniya sazanshiatā | Kinokuniya sazanshiatā (Kinokuniya Southern Theatre) | Japan, Tokyo, 7F Takashimaya Times Square, 5-24-2, Sendagaya, Shibuya-ku | 1997-09-18 | 2002-02-11 | 1997–2002 | 3 | |
| Kecskemét | Kecskemét | Hungary, Kecskemét | 1909-03-06 | -- | 1909–2007 | 14 | |
| Kangle ji Wenhua Shiwu Shu | Kangle ji Wenhua Shiwu Shu (Leisure and Cultural Services Department) | Hong Kong, Kwai Tsing District, 1-3 Pai Tau St | 2006-05-18 | 2006-06-04 | 2006 | 2 | |
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