| Kalita Humphreys Theater | Kalita Humphreys Theater | United States, Dallas, 3636 Turtle Creek Blvd | 2001-09-05 | 2018-07-07 | 2001–2018 | 2 | |
| Kuressaare | Kuressaare | Estonia, Kuressaare | -- | -- | | | |
| Königliches Schauspielhaus | Königliches Schauspielhaus | Germany, Dresden, Ostra-Allee 27 | 1902-09-25 | 1921-04-19 | 1902–1918 | 25 | |
| Kyrenia | Kyrenia | Cyprus, Kyrenia | 1973-03-06 | -- | 1973–1974 | 2 | |
| Kinoteatret | Kinoteatret | Norway, Askim, Kirkegata 5 | 1960-10-21 | -- | 1960–1977 | 4 | |
| Korskirken | Korskirken | Norway, Bergen, Vågsbunnen | 2008-02-13 | 2008-02-14 | 2008 | 1 | |
| Kulturhuset | Kulturhuset | Norway, Kvinesdal | 1986-04-15 | -- | 1986–1997 | 3 | |
| 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 | |
| Komm. kino | Komm. kino | Norway, Oppdal | 1952-02-24 | -- | 1952–1971 | 5 | |
| Kristiansund, Festiviteten | Festiviteten Kristiansund (Festiviteten) | Norway, Kristiansund, Kong Olav V's gate 1 | 1952-02-25 | 2014-04-11 | 1952–2014 | 15 | |
| KCET (USA) | KCET (USA) | United States | 1990-01-01 | -- | 1990 | 1 | |
| Kleines Theater | Kleines Theater | Germany, Berlin, Unter den Linden 44 | 1907-11-02 | -- | 1907 | 1 | |
| King's College, Taunton | King's College, Taunton | England, Somerset, South Rd | 2008-03-29 | 2008-04-05 | 2008 | 1 | |
| Kolozsvári Nemzeti Színház | Kolozsvári Nemzeti Színház | Romania, Cluj-Napoca | 1925-10-22 | 1925-12-19 | 1925–1930 | 4 | |
| Kulturbadet | Kulturbadet | Norway, Sandnessjøen, Torolv Kveldulvsons gate 10 | 2017-09-26 | 2020-10-19 | 2017–2022 | 4 | |
| Klagenfurt | Klagenfurt | Austria, Klagenfurt | -- | -- | | | |
| Kitchen Theatre | Kitchen Theatre | United States, Ithaca, 417 West State Street | 2003-04-17 | 2003-05-10 | 2003 | 1 | |
| Kristianstads Teater | Kristianstads Teater | Sweden, Kristianstad | 1885-02-23 | -- | 1885–2010 | 4 | |
| Komödie | Komödie | Austria, Vienna, Franz-Josefs-Kai 29 | 1947-11-25 | -- | 1947–1950 | 3 | |
| Kaiserliches Deutsches Hoftheater | Kaiserliches Deutsches Hoftheater St. Petersburg | Russia, Saint Petersburg | -- | -- | | | |
| Koninklijke Vlaamse Schouwburg | Koninklijke Vlaamse Schouwburg | Belgium, Bruxelles, Quai aux Pierres de Taille 7 | 1975-05-21 | 1990-06-10 | 1975–1990 | 3 | |
| Kulturzentrum Güssing | Kulturzentrum Güssing | Austria, Güssing, Schulstraße 6 | 2004-02-28 | -- | 2004 | 1 | |
| Kjølnes ungdomsskole | Kjølnes ungdomsskole | Norway, Porsgrunn, Porsgrunn | 2005-11-01 | 2006-11-14 | 2005–2006 | 2 | |
| Kaluga | Kaluga | Russia, Kaluga | 1982-- | -- | 1982 | 1 | |
| Kurtheater Bad Elster | Kurtheater Bad Elster | Germany, Bad Elster | 1896-06-16 | -- | 1896 | 1 | |
| Kulturhuset | Kulturhuset | Norway, Molde, Kirkekråpet | 1986-04-07 | 2007-04-13 | 1986–2007 | 3 | |
| Kurhaus | Kurhaus | Germany, Bad Schwalbach, Goethepl. 4 | 2007-03-21 | -- | 2007 | 1 | |
| Kirkebygden Skole | Kirkebygden Skole | Norway, Enebakk, Enebakk | 2005-11-02 | -- | 2005 | 1 | |
| Komm. kino | Komm. kino | Norway, Mysen | 1959-01-14 | 1959-01-15 | 1959 | 1 | |
| Koriyama | Koriyama | Japan, Koriyama | 2010-02-09 | -- | 2010 | 1 | |
| Kreiskulturraum | Kreiskulturraum | Germany, Kronach, Siechenangerstraße 13 | 2002-11-15 | 2002-11-17 | 2002 | 1 | |
| Komorní scéna Aréna | Komorní scéna Aréna | Czech Republic, Moravská Ostrava, 28. října 2 | 2014-03-22 | 2018-06-21 | 2014–2016 | 2 | |
| Kleine Bühne, Landschaftlicher Redoutensaal | Kleine Bühne, Landschaftlicher Redoutensaal | Austria, Linz | 1919-11-19 | 1920-03-13 | 1919–1920 | 4 | |
| Kultursalen, Arktisk Kultursenter | Kultursalen, Arktisk Kultursenter | Norway, Hammerfest, Strandgata 30 | 2009-12-01 | -- | 2009–2022 | 4 | |
| Knickerbocker Theatre | Knickerbocker Theatre | United States, New York, 1396 Broadway (West 38th Street) | 1905-03-07 | 1905-03- | 1905 | 1 | |
| Kispest | Kispest | Hungary, Budapest | 1925-03-13 | -- | 1925 | 1 | |
| K. K. Hofburgtheater | K. K. Hofburgtheater | Austria, Vienna, Universitätsring | 1890-10-23 | 1923-11-20 | 1890–1918 | 61 | |
| Kameren teatar Plovdiv | Kameren teatar Plovdiv | Bulgaria, Plovdiv | 1924-03-19 | -- | 1924 | 1 | |
| Kulturhuset ASK | Kulturhuset ASK | Norway, Gjerdrum, Ask | 2001-11-02 | -- | 2001 | 1 | |
| Kinoen | Kinoen | Norway, Rjukan | 1952-02-07 | 1963-01-25 | 1952–1971 | 6 | |
| Kilachand Theatre | Kilachand Theatre, DUCTAC | United Arab Emirates, Dubai | 2017-05-10 | 2017-05-13 | 2017 | 1 | |
| Kenton Theatre | Kenton Theatre | England, Henley-on-Thames, Oxfordshire, New St | 2005-11-21 | 2005-11-26 | 2005 | 1 | |
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