| Klostersaal | Klostersaal | Germany, Forchheim, Klosterstraße 10 | 2004-03-23 | -- | 2004–2011 | 2 | |
| Kansan Näyttämö | Kansan Näyttämö | Finland, Helsinki | 1908-03-19 | -- | 1908–1930 | 6 | |
| Körmend | Körmend | Hungary, Körmend | 1909-12-22 | 1922-12-29 | 1909–1922 | 3 | |
| Khios | Khios | Greece, Khios | 1904-07-28 | -- | 1904 | 1 | |
| Kristiansand | Kristiansand | Norway, Kristiansand | 1889-03-08 | 2005-03-16 | 1889–2005 | 15 | |
| Krajské oblastní divadlo Olomouc | Krajské oblastní divadlo Olomouc | Czech Republic, Olomouc | -- | -- | | | |
| Katona József Színház | Katona József Színház | Hungary, Kecskemét, Katona József tér 5 | 1971-04-02 | 2007-05-05 | 1971–2007 | 2 | |
| Kotka | Kotka | Finland, Kotka | -- | -- | | | |
| Kinokuniya Southern Theatre | Kinokuniya Southern Theatre | Japan, Tokyo, 7F Takashimaya Times Square, 5-24-2, Sendagaya, Shibuya-ku | 1997-09-18 | 2002-02-11 | 1997–2002 | 3 | |
| Kvinesdal | Kvinesdal | Norway, Kvinesdal | 1991-09-26 | -- | 1991–2005 | 3 | |
| Kurhaus (Großer Saal) | Kurhaus (Großer Saal) | Germany, Bad Soden am Taunus | 1963-11-06 | -- | 1963 | 1 | |
| Khulna University Auditorium | Khulna University Auditorium | Bangladesh, Khulna, Khulna University | 2006-03-04 | -- | 2006 | 1 | |
| Komediteatern | Komediteatern | Sweden, Stockholm | 1936-11-11 | -- | 1936 | 1 | |
| Korjaamo Teatteri | Korjaamo Teatteri | Finland, Helsinki, Töölönkatu 51 a-b | 2016-08-23 | 2016-08-24 | 2016 | 1 | |
| Kongshaug musikkgymnas | Kongshaug musikkgymnas | Norway, Lepsøy, Os | 2006-03-25 | 2006-03-28 | 2006 | 1 | |
| Kinder- und Jugendtheater am Landestheater Tübingen | Kinder- und Jugendtheater am Landestheater Tübingen | Germany, Tübingen, Eberhardstraße 6 | 2010-04-10 | 2011-05-14 | 2010 | 1 | |
| Klein RaamTeater | 't Klein RaamTeater | Belgium, Antwerp | 1989-03-16 | 1989-04-29 | 1989 | 1 | |
| Kammerspiele Berlin | Kammerspiele Berlin | Germany, Berlin (Mitte), Schumannstr. 13a | 1906-11-08 | -- | 1906–2003 | 15 | |
| Kanalbåten Henrik Ibsen, Løveids sluser | Kanalbåten Henrik Ibsen, Løveids sluser | Norway, Skien, Skotfoss, Festiviteten | 2007-05-23 | 2007-06-14 | 2007 | 1 | |
| Kulturhaus Knittelfeld | Kulturhaus Knittelfeld | Austria, Knittelfeld, Gaaler Straße 4 | 1993-10-13 | -- | 1993 | 1 | |
| Kumla Folkets Hus | Kumla Folkets Hus | Sweden, Kumla, Skolvägen 12 | 2002-04-27 | -- | 2002 | 1 | |
| Kulturhuset Bølgen | Kulturhuset Bølgen | Norway, Larvik | 2009-10-30 | 2020-11-11 | 2009–2020 | 13 | |
| Kortrijk | Kortrijk | Belgium, Kortrijk | 1995-01-24 | -- | 1995 | 1 | |
| Kleve | Kleve | Germany, Kleve | 2001-10-04 | -- | 2001 | 1 | |
| Khedivial Theatre | Khedivial Theatre | Egypt, Cairo, EL Borg Gezira | 1892-03-15 | -- | 1892 | 1 | |
| Kurtheater Bad Kreuznach | Kurtheater Bad Kreuznach | Germany, Bad Kreuznach | 1895-08-26 | -- | 1895 | 1 | |
| Kosei Nenkin Kaikan Hall | Kosei Nenkin Kaikan Hall | Japan, Osaka, 1-14-15 Shin-machi, Nishi-ku | 1971-10-03 | -- | 1971 | 2 | |
| Kleine Bühne Flensburg | Kleine Bühne Flensburg | Germany, Flensburg, Nordergraben 12 | 2011-05-26 | -- | 2011 | 1 | |
| Kvaløya videregående skole | Kvaløya videregående skole | Norway, Kvaløysletta, Nedre Storvollen 75 | 1997-11-12 | -- | 1997 | 1 | |
| Královské zemské České divadlo | Královské zemské České divadlo | Czech Republic, Prague | 1878-04-15 | -- | 1878 | 1 | |
| Kasernescenen | Kasernescenen | Denmark, Aarhus, Langelandsgade 139 | 2006-05-18 | 2006-05-20 | 2006 | 1 | |
| Kolvereid Samfunnshus | Kolvereid Samfunnshus | Norway, Kolvereid | 1961-02-11 | -- | 1961–1989 | 3 | |
| Kellertheater Hamburg | Kellertheater Hamburg | Germany, Hamburg, Johannes-Brahms-Platz 1 | 2018-10-19 | -- | 2018 | 1 | |
| Kammerspiele Bad Godesberg | Kammerspiele Bad Godesberg | Germany, Bonn - Bad Godesberg, Am Michaelshof 9 | 2000-02-26 | 2017-06-10 | 2000–2017 | 2 | |
| Kulturring Neuhausen | Kulturring Neuhausen | Germany, Neuhausen auf den Fildern, Fuchslöcherstraße 15 | 2007-03-20 | -- | 2007 | 1 | |
| Kyoto | Kyoto | Japan, Kyoto | 2009-10-23 | 2009-10-25 | 2009 | 1 | |
| Kenendy Theatre | Kennedy Theatre | United States, Honolulu, 1770 East-West Rd | 2018-04-13 | 2018-04-22 | 2018 | 1 | |
| Kaiserbädersaal (Maritim Hotel) | Kaiserbädersaal (Maritim Hotel) | Germany, Heringsdorf, Strandpromenade/Kulmstraße 33 | 2017-10-19 | -- | 2017 | 1 | |
| Kajaanin kaupunginteatteri | Kajaanin kaupunginteatteri | Finland, Kajaani, Kauppakatu 14 | 1976-09-16 | 2010-05-20 | 1976–2009 | 2 | |
| Kinnaird College | Kinnaird College | Pakistan, Lahore, Near Canal bank، Jail Road، G.O.R. - I | 2018-05-10 | 2018-05-13 | 2018 | 1 | |
| Komárno | Komárno | Slovak Republic, Komárno | 1926-11-19 | -- | 1926–1938 | 2 | |
| Kraljevsko slovensko gledališče Ljubljana | Kraljevsko slovensko gledališče Ljubljana | Slovenia, Ljubljana | 1919-03-08 | -- | 1919 | 1 | |
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