| Kleines Haus at Staatstheater Mainz | Kleines Haus at Staatstheater Mainz | Germany, Mainz, Tritonplatz | 1998-10-17 | 2001-06-28 | 1998–2001 | 2 | |
| Kulturring Neuhausen | Kulturring Neuhausen | Germany, Neuhausen auf den Fildern, Fuchslöcherstraße 15 | 2007-03-20 | -- | 2007 | 1 | |
| Königsberg | Königsberg | Germany, Königsberg | -- | -- | | | |
| Kleine Bühne Flensburg | Kleine Bühne Flensburg | Germany, Flensburg, Nordergraben 12 | 2011-05-26 | -- | 2011 | 1 | |
| Kopervik | Kopervik | Norway, Kopervik | 1971-03-05 | -- | 1971–2004 | 4 | |
| Kenendy Theatre | Kennedy Theatre | United States, Honolulu, 1770 East-West Rd | 2018-04-13 | 2018-04-22 | 2018 | 1 | |
| Kinoen | Kinoen | Norway, Rjukan | 1952-02-07 | 1963-01-25 | 1952–1971 | 6 | |
| Kotkan Kaupunginteatteri (Studio) | Kotkan Kaupunginteatteri (Studio) | Finland, Kotka | 1982-03-27 | -- | 1982 | 1 | |
| Kinoen | Kinoen | Norway, Lillesand | 1960-11-14 | -- | 1960 | 1 | |
| Kristianstad | Kristianstad | Sweden, Kristianstad | 1879-03-05 | -- | 1879–1992 | 5 | |
| Kinnaird College | Kinnaird College | Pakistan, Lahore, Near Canal bank، Jail Road، G.O.R. - I | 2018-05-10 | 2018-05-13 | 2018 | 1 | |
| Königstädter Theater | Königstädter Theater | Germany, Kassel | 1895-08-24 | 1895-08-25 | 1895 | 1 | |
| Kulturzentrum Frankental | Kulturzentrum Frankental | Germany, Stolberg, Frankentalstraße 3 | 2002-12-04 | 2011-04-14 | 2002–2011 | 4 | |
| Kanalbåten Henrik Ibsen, Løveids sluser | Kanalbåten Henrik Ibsen, Løveids sluser | Norway, Skien, Skotfoss, Festiviteten | 2007-05-23 | 2007-06-14 | 2007 | 1 | |
| Kvæfjord videregående skole | Kvæfjord videregående skole | Norway, Borkenes, Kvæfjord | 1997-11-21 | -- | 1997 | 1 | |
| Kolding Teater | Kolding Teater | Denmark, Kolding, Skovbrynet 1 | 1880-03-03 | -- | 1880–2018 | 16 | |
| Kurtheater, Norderney | Kurtheater, Norderney | Germany, Norderney | 2010-03-09 | -- | 2010 | 1 | |
| Kvartersteatern | Kvartersteatern | Sweden, Norrköping, Tunnbindaregatan 37 | 2020-03-06 | -- | 2020 | 1 | |
| Kotka | Kotka | Finland, Kotka | -- | -- | | | |
| Kom Hoorn | Kom Hoorn | Netherlands, Terschelling | 2003-06-13 | 2003-08-14 | 2003 | 1 | |
| Kaiserbädersaal (Maritim Hotel) | Kaiserbädersaal (Maritim Hotel) | Germany, Heringsdorf, Strandpromenade/Kulmstraße 33 | 2017-10-19 | -- | 2017 | 1 | |
| Katholisches Pfarreizentrum Heilig Geist | Katholisches Pfarreizentrum Heilig Geist | Switzerland, Wetzikon, Langfurrenstrasse 10 | 2010-05-16 | -- | 2010 | 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 | |
| Kurtheater Bad Kreuznach | Kurtheater Bad Kreuznach | Germany, Bad Kreuznach | 1895-08-26 | -- | 1895 | 1 | |
| Kunsthaus Seelscheid | Kunsthaus Seelscheid | Germany, Neunkirchen-Seelscheid, Bergstraße 41-43 | 2005-03-03 | 2005-03-20 | 2005 | 1 | |
| Kongresshaus | Kongresshaus | Switzerland, Davos | 1980-03-13 | 1980-03-14 | 1980 | 1 | |
| Kiskunhalas | Kiskunhalas | Hungary, Kiskunhalas | 1899-12-12 | -- | 1899–1935 | 3 | |
| Kviteseid kyrkje | Kviteseid kyrkje | Norway, Kviteseid | 2016-11-08 | -- | 2016 | 1 | |
| Krannert Center for the Performing Arts | Krannert Center for the Performing Arts | United States, Urbana, 500 South Goodwin Avenue | 1972-01-12 | 2022-02-19 | 1972–2022 | 6 | |
| Kikinda | Kikinda | Serbia, Kikinda | 1906-10-28 | -- | 1906 | 1 | |
| Kulturbund Deutscher Juden | Kulturbund Deutscher Juden | Germany, Berlin | 1934-03-05 | -- | 1934 | 1 | |
| Kulturhuset Milepelen | Kulturhuset Milepelen | Norway, Sagstua, Herredsveien 2 | 1989-09-17 | 2015-09-30 | 1989–2015 | 3 | |
| Kultur Raum im Rosenhof | Kultur Raum im Rosenhof | Germany, Kleines Wiesental, Schwand 8 | 2006-06-27 | -- | 2006 | 1 | |
| Kulturhuset Bølgen | Kulturhuset Bølgen | Norway, Larvik | 2009-10-30 | 2020-11-11 | 2009–2020 | 13 | |
| Kattateatret | Kattateatret | Norway, Oslo, Ullevålsveien 31 | 2003-01-07 | 2003-01-18 | 2003 | 1 | |
| Kulturhuset i Toftlund | Kulturhuset i Toftlund | Denmark, Toftlund, Søren Jensens Vej 2 | 2002-03-08 | -- | 2002 | 1 | |
| Kleines Theater Bad Godesberg | Kleines Theater Bad Godesberg | Germany, Bad Godesberg, Bonn, Koblenzer Straße 78 | 1967-10-31 | 2007-04-06 | 1967–2007 | 3 | |
| Katoto Secondary School | Katoto Secondary School | Malawi, Katoto | 2006-06-04 | -- | 2006 | 1 | |
| Katedralskolan | Katedralskolan | Sweden, Lund, Stora Södergatan 22 | 2006-10-20 | 2006-10-21 | 2006 | 1 | |
| Kraljevsko slovensko gledališče Ljubljana | Kraljevsko slovensko gledališče Ljubljana | Slovenia, Ljubljana | 1919-03-08 | -- | 1919 | 1 | |
| Karuss skole | Karuss skole | Norway, Kristiansand, Kristiansand | 2006-10-19 | -- | 2006 | 1 | |
| Kent State University Theatre | Kent State University Theatre | United States, Kent, B141 Music and Speech Building | 1968-04-06 | -- | 1968 | 1 | |
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