| Kellertheater Hamburg | Kellertheater Hamburg | Germany, Hamburg, Johannes-Brahms-Platz 1 | -- | -- | | | |
| 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 | |
| Kitami Economic Centre | Kitami Economic Centre | Japan, Hokkaido, Kitami | 1980-07-23 | -- | 1980 | 1 | |
| Kulturhuset Zahl | Kulturhuset Zahl | Norway, Nesna, Nesna | 2009-04-29 | -- | 2009 | 1 | |
| Krajské krušnohorské divadlo Teplice | Krajské krušnohorské divadlo Teplice | Czech Republic, Teplice | 1958-02-23 | -- | 1958 | 1 | |
| Kinkikan Hall | Kinkikan Hall | Japan, Tokyo | 1902-04-06 | -- | 1902 | 1 | |
| Körmend | Körmend | Hungary, Körmend | 1909-12-22 | 1922-12-29 | 1909–1922 | 3 | |
| Kostromskoj dramatieeskij teatr imeni A. Ostrovskogo | Kostromskoj dramatieeskij teatr imeni A. Ostrovskogo | Russia, Kostroma | 1964-10-27 | -- | 1964 | 1 | |
| Kulturhaus Knittelfeld | Kulturhaus Knittelfeld | Austria, Knittelfeld, Gaaler Straße 4 | 1993-10-13 | -- | 1993 | 1 | |
| Kinoteatret | Kinoteatret | Norway, Askim, Kirkegata 5 | 1960-10-21 | -- | 1960–1977 | 4 | |
| Kontraskjæret | Kontraskjæret | Norway, Oslo, Oslo | 2012-08-25 | -- | 2012 | 1 | |
| Kalita Humphreys Theater | Kalita Humphreys Theater | United States, Dallas, 3636 Turtle Creek Blvd | 2001-09-05 | 2018-07-07 | 2001–2018 | 2 | |
| Kielce | Kielce | Poland, Kielce | 1908-09- | -- | 1908–1918 | 4 | |
| 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 | |
| Kulturhuset | Kulturhuset | Norway, Kvinesdal | 1986-04-15 | -- | 1986–1997 | 3 | |
| Kurtheater Salzbrunn | Kurtheater Salzbrunn | Poland, Szczawno-Zdrój | 1903-07-10 | -- | 1903 | 1 | |
| Kruseløkka ungdomsskole | Kruseløkka ungdomsskole | Norway, Sarpsborg, Hans Nielsen Hauges gate 33 | 2006-10-24 | 2006-10-25 | 2006 | 1 | |
| Kongsvinger | Kongsvinger | Norway, Kongsvinger | 1952-03-11 | -- | 1952–2005 | 10 | |
| Khulna University Auditorium | Khulna University Auditorium | Bangladesh, Khulna, Khulna University | 2006-03-04 | -- | 2006 | 1 | |
| Klein RaamTeater | 't Klein RaamTeater | Belgium, Antwerp | 1989-03-16 | 1989-04-29 | 1989 | 1 | |
| Korjaamo Teatteri | Korjaamo Teatteri | Finland, Helsinki, Töölönkatu 51 a-b | 2016-08-23 | 2016-08-24 | 2016 | 1 | |
| Kaimscher Konzertsaal | Kaimscher Konzertsaal | Germany, Munich, Türkenstraße 5 | 1896-02-27 | -- | 1896 | 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 | |
| Kvartersteatern | Kvartersteatern | Sweden, Norrköping, Tunnbindaregatan 37 | 2020-03-06 | -- | 2020 | 1 | |
| Kulturhaus Chur | Kulturhaus Chur | Switzerland, Chur, Bienenstrasse 7 | 2002-04-26 | 2002-04-27 | 2002 | 1 | |
| Kyoto | Kyoto | Japan, Kyoto | 2009-10-23 | 2009-10-25 | 2009 | 1 | |
| Kogod Theatre (The Clarice Smith Performing Arts Center) | Kogod Theatre (The Clarice Smith Performing Arts Center) | United States, Baltimore, 8270 Alumni Dr, College Park | 2020-02-07 | 2020-02-15 | 2020 | 1 | |
| Kolozsvári Nemzeti Színház | Kolozsvári Nemzeti Színház | Romania, Cluj-Napoca | 1925-10-22 | 1925-12-19 | 1925–1930 | 4 | |
| Kortrijk | Kortrijk | Belgium, Kortrijk | 1995-01-24 | -- | 1995 | 1 | |
| Kulturzentrum Güssing | Kulturzentrum Güssing | Austria, Güssing, Schulstraße 6 | 2004-02-28 | -- | 2004 | 1 | |
| Kjøllefjord | Kjøllefjord | Norway, Kjøllefjord | 1970-09-14 | -- | 1970 | 1 | |
| Kulturhuset | Kulturhuset | Norway, Tromsø, Erling Bangsunds plass 1 | 1993-03-21 | 2015-11-27 | 1993–2017 | 11 | |
| Kristiansund, Festiviteten | Festiviteten Kristiansund (Festiviteten) | Norway, Kristiansund, Kong Olav V's gate 1 | 1952-02-25 | 2014-04-11 | 1952–2014 | 15 | |
| Kokkola | Kokkola | Finland, Kokkola | -- | -- | | | |
| Kulturring Neuhausen | Kulturring Neuhausen | Germany, Neuhausen auf den Fildern, Fuchslöcherstraße 15 | 2007-03-20 | -- | 2007 | 1 | |
| Kleine Bühne Flensburg | Kleine Bühne Flensburg | Germany, Flensburg, Nordergraben 12 | 2011-05-26 | -- | 2011 | 1 | |
| Kungsör | Kungsör | Sweden, Kungsör | 1993-10-15 | -- | 1993 | 1 | |
| Kasernescenen | Kasernescenen | Denmark, Aarhus, Langelandsgade 139 | 2006-05-18 | 2006-05-20 | 2006 | 1 | |
| Kenendy Theatre | Kennedy Theatre | United States, Honolulu, 1770 East-West Rd | 2018-04-13 | 2018-04-22 | 2018 | 1 | |
| Kammerspiele Bad Godesberg | Kammerspiele Bad Godesberg | Germany, Bonn - Bad Godesberg, Am Michaelshof 9 | 2000-02-26 | 2017-06-10 | 2000–2017 | 2 | |
| Kammerbühne | Kammerbühne | Germany, Schwerin | -- | -- | | | |
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