| Kinoteatret | Kinoteatret | Norway, Mo i Rana, Rådhusplassen 2 | 1959-02-18 | 1993-03-19 | 1959–2017 | 11 | |
| Konigliches Hoftheater Dresden-Neustadt | Konigliches Hoftheater Dresden-Neustadt | Germany, Dresden | 1876-09-27 | 1901-03-04 | 1876–1901 | 10 | |
| 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 | |
| Kinsarvik | Kinsarvik | Norway, Kinsarvik | 1966-09-01 | -- | 1966 | 1 | |
| Kragerø ungdomsskole | Kragerø ungdomsskole | Norway, Kragerø, Kragerø | 2006-10-30 | 2006-10-31 | 2006 | 1 | |
| Korsavadshallen | Korsavadshallen | Sweden, Simrishamn, Backgatan 50 | 2006-10-25 | -- | 2006 | 1 | |
| Komm. kino | Komm. kino | Norway, Mysen | 1959-01-14 | 1959-01-15 | 1959 | 1 | |
| Kaposvár | Kaposvár | Hungary, Kaposvár | 1890-08-26 | 1928-10-29 | 1890–1935 | 20 | |
| Kulturhaus Chur | Kulturhaus Chur | Switzerland, Chur, Bienenstrasse 7 | 2002-04-26 | 2002-04-27 | 2002 | 1 | |
| Königliches Schauspielhaus | Königliches Schauspielhaus | Germany, Dresden, Ostra-Allee 27 | 1902-09-25 | 1921-04-19 | 1902–1918 | 25 | |
| King's College, Taunton | King's College, Taunton | England, Somerset, South Rd | 2008-03-29 | 2008-04-05 | 2008 | 1 | |
| Kid Ailac Art Hall | Kid Ailac Art Hall | Japan, Tokyo, 2-43 Matsubara, Setagaya-ku | 1998-06-20 | 1998-06-21 | 1998 | 1 | |
| Kammerspiele Theater Lübeck | Kammerspiele Theater Lübeck | Germany, Lübeck, Beckergrube 16 | 1999-09-04 | 2010-06-12 | 1999–2010 | 3 | |
| Kolozsvári Nemzeti Színház | Kolozsvári Nemzeti Színház | Romania, Cluj-Napoca | 1925-10-22 | 1925-12-19 | 1925–1930 | 4 | |
| Kyoto Kaikan Hall | Kyoto Kaikan Hall (Kyoto Kaikan) | Japan, Kyoto, 13 Sakyo-ku | 1959-12-04 | 1959-12-05 | 1959–1971 | 4 | |
| Katrineholm | Katrineholm | Sweden, Katrineholm | 1936-10-24 | 2019-09-18 | 1936–2019 | 3 | |
| Kongstenhallen | Kongstenhallen | Norway, Fredrikstad, Torsnesveien 12 | 1997-10-20 | 1997-10-21 | 1997 | 1 | |
| Kristiansand Teater | Kristiansand Teater | Norway, Kristiansand | 1859-04-08 | 1998-11-16 | 1859–1998 | 16 | |
| Kantonsschule Kollegium Schwyz | Kantonsschule Kollegium Schwyz | Switzerland, Schwyz, Kollegiumstrasse 24 | 2011-02-18 | 2011-02-26 | 2011 | 1 | |
| KCET (USA) | KCET (USA) | United States | 1990-01-01 | -- | 1990 | 1 | |
| Kitchen Theatre | Kitchen Theatre | United States, Ithaca, 417 West State Street | 2003-04-17 | 2003-05-10 | 2003 | 1 | |
| Kongliga Dramatiska Teatern | Kongliga Dramatiska Teatern | Sweden, Stockholm, Kungsträdgården | 1857-11-04 | 1905-04-19 | 1857–1903 | 40 | 1 |
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