| Kleine Bühne | Kleine Bühne | Czech Republic, Prague | 1932-04-27 | -- | 1932 | 1 | |
| Kulturhuset Zahl | Kulturhuset Zahl | Norway, Nesna, Nesna | 2009-04-29 | -- | 2009 | 1 | |
| Kulturzentrum Mattersburg | Kulturzentrum Mattersburg | Austria, Mattersburg, Wulkalände 2 | 2013-04-11 | -- | 2013 | 1 | |
| Krochttheater | Krochttheater | Netherlands, Rotterdam | 1987-11-08 | -- | 1987 | 1 | |
| 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 | |
| Kulturzentrum Güssing | Kulturzentrum Güssing | Austria, Güssing, Schulstraße 6 | 2004-02-28 | -- | 2004 | 1 | |
| Kongstenhallen | Kongstenhallen | Norway, Fredrikstad, Torsnesveien 12 | 1997-10-20 | 1997-10-21 | 1997 | 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 | |
| Kellertheater des GZ Buchegg | Kellertheater des GZ Buchegg | Switzerland, Zürich, Bucheggstr. 93 | 2013-05-20 | 2013-05-17 | 2013 | 1 | |
| KCET (USA) | KCET (USA) | United States of America | 1990-01-01 | -- | 1990 | 1 | |
| Kurtheater Salzbrunn | Kurtheater Salzbrunn | Poland, Szczawno-Zdrój | 1903-07-10 | -- | 1903 | 1 | |
| Konzert-Aula Kamen | Konzert-Aula Kamen | Germany, Kamen, Hammer Str. 19 | 2001-02-19 | -- | 2001 | 1 | |
| Kontraskjæret | Kontraskjæret | Norway, Oslo, Oslo | 2012-08-25 | -- | 2012 | 1 | |
| Kammerspiele des Thalia-Theaters | Kammerspiele des Thalia-Theaters | Germany, Hamburg | 1944-06-09 | -- | 1944 | 1 | |
| Kellertheater Hamburg | Kellertheater Hamburg | Germany, Hamburg, Johannes-Brahms-Platz 1 | 2018-10-19 | -- | 2018 | 1 | |
| Kurhaus | Kurhaus | Germany, Bad Schwalbach, Goethepl. 4 | 2007-03-21 | -- | 2007 | 1 | |
| Kjøllefjord | Kjøllefjord | Norway, Kjøllefjord | 1970-09-14 | -- | 1970 | 1 | |
| Kentucky | Kentucky | United States of America, Kentucky | 1903-12-14 | 1903-12-15 | 1903 | 1 | |
| Kvartersteatern | Kvartersteatern | Sweden, Norrköping, Tunnbindaregatan 37 | 2020-03-06 | -- | 2020 | 1 | |
| Kultur Raum im Rosenhof | Kultur Raum im Rosenhof | Germany, Kleines Wiesental, Schwand 8 | 2006-06-27 | -- | 2006 | 1 | |
| Kinolokalet | Kinolokalet | Norway, Åsgårdstrand | 1956-05-21 | -- | 1956 | 1 | |
| Kvinesdal ungdomsskole | Kvinesdal ungdomsskole | Norway, Kvinesdal, Åsevegen | 2006-11-10 | -- | 2006 | 1 | |
| Kirchgemeindehaus | Kirchgemeindehaus | Switzerland, Balgach, Breitestrasse 6 | 2010-01-02 | -- | 2010 | 1 | |
| Krokom | Krokom | Sweden, Krokom | 1989-09-27 | 1989-09-27 | 1989 | 1 | |
| Kulturhuset Spira | Kulturhuset Spira | Sweden, Jönköping, Kulturgatan 3 | 2020-02-07 | 2020-03-15 | 2020 | 1 | |
| Katedralskolan | Katedralskolan | Sweden, Lund, Stora Södergatan 22 | 2006-10-20 | 2006-10-21 | 2006 | 1 | |
| Kiel | Kiel | Germany, Kiel | 1952-01-11 | 1952-01-12 | 1952 | 1 | |
| Klicperovo divadlo (Studio Beseda) | Klicperovo divadlo (Studio Beseda) | Czech Republic, Hradec Králové, Dlouhá 99/9 | 1995-04-01 | -- | 1995 | 1 | |
| Kisvárdai Várszínház és Művészetek Háza | Kisvárdai Várszínház és Művészetek Háza | Hungary, Kisvárda, Flórián tér 20 | 2018-06-28 | -- | 2018 | 1 | |
| Kvernhuset Ungdomskole | Kvernhuset Ungdomskole | Norway, Fredrikstad, Kvernhusveien 1 | 2006-11-09 | 2006-11-13 | 2006 | 1 | |
| Krajské oblastní divadlo | Krajské oblastní divadlo | Czech Republic, Karlovy Vary | 1956-01-21 | -- | 1956 | 1 | |
| Konferenscenter Safiren (Cosmos) | Konferenscenter Safiren (Cosmos) | Sweden, Katrineholm, Drottninggatan 19 | 2010-10-04 | -- | 2010 | 1 | |
| Königliches Theater Helgoland (Hoftheater-Ensemble) | Königliches Theater Helgoland (Hoftheater-Ensemble) | Germany, Helgoland | 1878-04-14 | -- | 1878 | 1 | |
| Küsnacht ZH | Küsnacht ZH | Switzerland | 2002-09-14 | -- | 2002 | 1 | |
| Kleines Theater Schillerstrasse | Kleines Theater Schillerstrasse | Germany, Geesthacht, Schillerstraße 33 | 2005-11-11 | -- | 2005 | 1 | |
| Kath. Pfarrzentrum | Kath. Pfarrzentrum | Germany, Ueberlingen | 1980-03-15 | -- | 1980 | 1 | |
| Kauno Valstybinis Akademinis Dramos Teatras | Kauno Valstybinis Akademinis Dramos Teatras | Lithuania, Kaunas, Laisvės al. 71 | 1998-03-17 | -- | 1998 | 1 | |
| KKM Gönül Ülkü ve Gazanfer Özcan Sahnesi | KKM Gönül Ülkü ve Gazanfer Özcan Sahnesi | Turkey, Istanbul | 2023-11-23 | 2023-11-30 | 2023 | 1 | |
| Kultur im Beaulieu | Kultur im Beaulieu | Switzerland, Murten, Prehlstrasse 13 | 2009-01-17 | 2009-02-07 | 2009 | 1 | |
| Kyrkholmen | Kyrkholmen, Skellefteå | Sweden, Kyrkholmen, Skellefteå, Kyrkholmen | 1997-06-18 | 1997-07-13 | 1997 | 1 | |
| Kulturhuset i Toftlund | Kulturhuset i Toftlund | Denmark, Toftlund, Søren Jensens Vej 2 | 2002-03-08 | -- | 2002 | 1 | |
| Korskirken | Korskirken | Norway, Bergen, Vågsbunnen | 2008-02-13 | 2008-02-14 | 2008 | 1 | |
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