| Koszalin | Koszalin | Poland, Koszalin | -- | -- | | | |
| Kutno | Kutno | Poland, Kutno | 1918-04- | -- | 1918 | 1 | |
| Kurtheater Salzbrunn | Kurtheater Salzbrunn | Poland, Szczawno-Zdrój | 1903-07-10 | -- | 1903 | 1 | |
| Kolozsvari Nemzeti Színház | Kolozsvari Nemzeti Színház | Romania, Cluj-Napoca | 1889-12-09 | 1931-03-31 | 1889–1944 | 10 | |
| Kolozsvári Állami Magyar Színház | Kolozsvári Állami Magyar Színház | Romania, Cluj-Napoca | 1922-12-15 | 2019-06-07 | 1922–2020 | 18 | |
| Kolozsvári Nemzeti Színház | Kolozsvári Nemzeti Színház | Romania, Cluj-Napoca | 1925-10-22 | 1925-12-19 | 1925–1930 | 4 | |
| Kraevoj teatr drami | Kraevoj teatr drami | Russia, Habarovsk | 1955-10- | -- | 1955 | 1 | |
| Kaliningrad | Kaliningrad | Russia, Kaliningrad | -- | -- | | | |
| Kaluga | Kaluga | Russia, Kaluga | 1982-- | -- | 1982 | 1 | |
| Kemerovski teatr drami imeni A. Lunačarskogo | Kemerovski teatr drami imeni A. Lunačarskogo | Russia, Kemerovo, Vesennyaya Ulitsa, 11 | 1979-01- | -- | 1979 | 1 | |
| Kostromskoj dramatieeskij teatr imeni A. Ostrovskogo | Kostromskoj dramatieeskij teatr imeni A. Ostrovskogo | Russia, Kostroma | 1964-10-27 | -- | 1964 | 1 | |
| Kostroma | Kostroma | Russia, Kostroma | 1902-- | -- | 1902 | 1 | |
| Krasnodar | Krasnodar | Russia, Krasnodar | 1899-05-20 | -- | 1899 | 1 | |
| Krasnodarski molodežnjij teatr | Krasnodarski molodežnjij teatr (Krasnodar Youth Theater) | Russia, Krasnodar, Krasnodar Krai, Ulitsa Mitrofana Sedina, 28 | 2016-10-06 | -- | 2016 | 1 | |
| Korshch Teatr | Korshch Teatr | Russia, Moscow | 1892-01-01 | -- | 1892–1904 | 2 | |
| Krasnyy Fakel | Krasnyy Fakel (The Novosibirsk State Academic Drama Theatre «Red Torch») | Russia, Novosibirsk Oblast, Ulitsa Lenina, 19 | -- | -- | | | |
| Krasnyj fakel | Krasnyj fakel (Red torch) | Russia, Novosibirsk, Ulitsa Lenina, 19 | -- | 2021-12-19 | 1964–2021 | 4 | |
| Kazan | Kazan | Russia, Republic of Tatarstan | 1908-10-01 | -- | 1908 | 1 | |
| Kaiserliches Deutsches Hoftheater | Kaiserliches Deutsches Hoftheater St. Petersburg | Russia, Saint Petersburg | -- | -- | | | |
| Kirk O'Field Church Hall | Kirk O'Field Church Hall | Scotland, Edinburgh, 140 Pleasance | 2000-08-14 | 2000-08-26 | 2000 | 1 | |
| King's Theatre | King's Theatre | Scotland, Edinburgh, 2 Leven Street | 1986-09- | 2021-10-23 | 1986–2021 | 5 | |
| King's Theatre | King's Theatre | Scotland, Glasgow, 297 Bath St | 1965-03-12 | 1965-03-13 | 1965–1972 | 2 | |
| Kikinda | Kikinda | Serbia, Kikinda | 1906-10-28 | -- | 1906 | 1 | |
| Kulturni centar Novog Sada | Kulturni centar Novog Sada (Cultural Center of Novi Sad) | Serbia, Novi Sad, Katolička porta 5 | 2011-11-07 | 2012-02-15 | 2011 | 1 | |
| Kulturni centar Zrenjanina | Kulturni centar Zrenjanina (Zrenjanin Cultural Center) | Serbia, Zrenjanin, Narodne omladine 1 | -- | -- | | | |
| Komárno | Komárno | Slovak Republic, Komárno | 1926-11-19 | -- | 1926–1938 | 2 | |
| Košice | Košice | Slovak Republic, Košice | 1889-12-21 | 1928-09-22 | 1889–1940 | 13 | |
| Kraljevsko slovensko gledališče Ljubljana | Kraljevsko slovensko gledališče Ljubljana | Slovenia, Ljubljana | 1919-03-08 | -- | 1919 | 1 | |
| Kandy | Kandy | Sri Lanka, Kandy | 2006-09-26 | -- | 2006 | 1 | |
| Karlskoga | Karlskoga | Sweden | 2002-09-05 | -- | 2002 | 1 | |
| Kulturhuset Blå Stället | Kulturhuset Blå Stället | Sweden, Angered, Angereds torg 13 | 2009-09-25 | 2009-12-04 | 2009 | 1 | |
| Kulturhuset Halmstad | Kulturhuset Halmstad | Sweden, Halmstad, Furuvägen 41 | 2010-11-27 | -- | 2010 | 1 | |
| Kulturhuset Anders | Kulturhuset Anders | Sweden, Höör, Stenskogsvägen 2 | 2001-08-03 | 2006-08-06 | 2001–2006 | 2 | |
| Kulturhuset i Ytterjärna | Kulturhuset i Ytterjärna | Sweden, Järna, Kulturcentrum Järna | 2011-05-31 | -- | 2011 | 1 | |
| Kulturhuset Spira | Kulturhuset Spira | Sweden, Jönköping, Kulturgatan 3 | 2020-02-07 | 2020-03-15 | 2020 | 1 | |
| Kallinge | Kallinge | Sweden, Kallinge | 1967-04- | -- | 1967 | 1 | |
| Kalmar | Kalmar | Sweden, Kalmar | 1936-10-22 | 2018-05-16 | 1936–2018 | 4 | |
| Kalmar Teater | Kalmar Teater | Sweden, Kalmar, Larmtorget | 1879-05-19 | 1880-05-28 | 1879–1905 | 8 | |
| Karlshamns Teater | Karlshamns Teater | Sweden, Karlshamn | 1880-06-21 | -- | 1880–1905 | 2 | |
| Karlskrona | Karlskrona | Sweden, Karlskrona | 1936-10-21 | -- | 1936 | 1 | |
| Karlskrona Teater | Karlskrona Teater | Sweden, Karlskrona | 1880-06-04 | 1886-01-08 | 1880–1905 | 6 | |
| Konserthusteatern Karlskrona | Konserthusteatern Karlskrona | Sweden, Karlskrona, Stortorget 16 | 2010-12-09 | -- | 2010 | 1 | |
|
|
