| Keszthely | Keszthely | Hungary, Keszthely | 1925-02-14 | -- | 1925–1926 | 4 | |
| Kenwood House | Kenwood House | England, London, Hampstead Lane, Hampstead | 2014-03-31 | 2014-04-04 | 2014 | 1 | |
| Kentucky, The | The Kentucky | United States of America, Lexington | 1903-12-17 | -- | 1903 | 1 | |
| Kentucky | Kentucky | United States of America, Kentucky | 1903-12-14 | 1903-12-15 | 1903 | 1 | |
| Kenton Theatre | Kenton Theatre | England, Henley-on-Thames, Oxfordshire, New St | 2005-11-21 | 2005-11-26 | 2005 | 1 | |
| Kent State University Theatre | Kent State University Theatre | United States of America, Kent, B141 Music and Speech Building | 1968-04-06 | -- | 1968 | 1 | |
| Kent | Kent | England, Kent | -- | -- | | | |
| Kenosha | Kenosha | United States of America, Kenosha | -- | -- | | | |
| Kennington Theatre | Kennington Theatre | England, London, Kennington Park Road | 1917-06-12 | -- | 1917 | 1 | |
| Kenendy Theatre | Kennedy Theatre | United States of America, Honolulu, 1770 East-West Rd | 2018-04-13 | 2018-04-22 | 2018 | 1 | |
| Ken Shin Kōriyama bunka sentā | Ken Shin Kōriyama bunka sentā (Koriyama City Cultural Center) | Japan, Fukushima, 1-2 Tsutsumishitamachi, Koriyama, Fukushima 963-8878, Japan | 2010-02-09 | -- | 2010 | 1 | |
| Kemin Kaupunginteatteri | Kemin Kaupunginteatteri | Finland, Kemi, Marina Takalon katu 3 | 1981-11-14 | -- | 1981 | 1 | |
| Kemerovski teatr drami imeni A. Lunačarskogo | Kemerovski teatr drami imeni A. Lunačarskogo | Russia, Kemerovo, Vesennyaya Ulitsa, 11 | 1979-01- | -- | 1979 | 1 | |
| Kelsey Theatre | Kelsey Theatre | United States of America, Princeton Junction, 1200 Old Trenton Rd | 2013-10-24 | 2013-10-24 | 2013 | 1 | |
| Kelly's Theatre | Kelly's Theatre | England, Liverpool, Paradise Street | 1910-09-26 | -- | 1910 | 3 | |
| Kellertheater Thun | Kellertheater Thun | Switzerland, Thun | 1985-10-26 | 1985-11-09 | 1985 | 1 | |
| Kellertheater Nadelberg 6 | Kellertheater Nadelberg 6 | Switzerland, Basel, Nadelberg 6 | 2012-05-11 | 2012-06-03 | 2012 | 1 | |
| Kellertheater Hamburg | Kellertheater Hamburg | Germany, Hamburg, Johannes-Brahms-Platz 1 | 2018-10-19 | -- | 2018 | 1 | |
| Kellertheater des GZ Buchegg | Kellertheater des GZ Buchegg | Switzerland, Zürich, Bucheggstr. 93 | 2013-05-20 | 2013-05-17 | 2013 | 1 | |
| Kelemen László Kamaraszínház | Kelemen László Kamaraszínház | Hungary, Kecskemét, Katona József tér 8. | 1996-02-02 | -- | 1996 | 1 | |
| Kecskemét | Kecskemét | Hungary, Kecskemét | 1909-03-06 | -- | 1909–2007 | 14 | |
| Keck Theater, Occidental College | Keck Theater, Occidental College | United States of America, Los Angeles, Coons Rd | 2005-11-16 | 2005-11-20 | 2005 | 1 | |
| Keble O’Reilly Theatre | Keble O’Reilly Theatre | England | 2010-11-17 | 2010-11-20 | 2010 | 1 | |
| Keble O'Reilly | Keble O'Reilly Theatre | England, Oxford, Blackhall Road, Oxford, OX1 3PG | 2023-11-09 | 2023-11-11 | 2023 | 1 | |
| Kearney Opera House | Kearney Opera House | United States of America, Kearney | 1905-05-15 | 1905-05-15 | 1905 | 1 | |
| Ke Center for Contemporary Arts | Ke Center for Contemporary Arts | China, Shanghai, 613 Kaixuan Rd | 2009-10-14 | 2009-10-18 | 2009 | 1 | |
| KCRW | KCRW | United States of America, Santa Monica, Pico Boulevard | 1997-09-07 | -- | 1997 | 1 | |
| KCET (USA) | KCET (USA) | United States of America | 1990-01-01 | -- | 1990 | 1 | |
| KC Vooruit | KC Vooruit | Belgium, Gent, Sint-Pietersnieuwstraat 23 | 1994-03-25 | 2005-02-16 | 1994–2005 | 5 | |
| Kazi Nazrul Islam Auditorium | Kazi Nazrul Islam Auditorium | Bangladesh, Rajshahi, University of Rajshahi | 2006-04-29 | -- | 2006 | 1 | |
| Kazan | Kazan | Russia, Republic of Tatarstan | 1908-10-01 | -- | 1908 | 1 | |
| Kazalište Marina Držiča | Kazalište Marina Držiča | Croatia, Dubrovnik, Pred Dvorom 3 | -- | -- | | 1 | |
| Kaye Playhouse Hunter College | The Kaye Playhouse Hunter College | United States of America, New York, 695 Park Ave | 1997-10-24 | 1997-10-25 | 1997 | 1 | |
| Kautokeino | Kautokeino | Norway, Kautokeino | 1990-10-05 | -- | 1990–2001 | 2 | |
| Kauno Valstybinis Akademinis Dramos Teatras | Kauno Valstybinis Akademinis Dramos Teatras | Lithuania, Kaunas, Laisvės al. 71 | 1998-03-17 | -- | 1998 | 1 | |
| Kaufbeuren | Kaufbeuren | Germany, Swabia, Bavaria | 1878-- | -- | 1878 | 1 | |
| Kattateatret | Kattateatret | Norway, Oslo, Ullevålsveien 31 | 2003-01-07 | 2003-01-18 | 2003 | 1 | |
| Katrineholm | Katrineholm | Sweden, Katrineholm | 1936-10-24 | 2019-09-18 | 1936–2019 | 3 | |
| Katoto Secondary School | Katoto Secondary School | Malawi, Katoto | 2006-06-04 | -- | 2006 | 1 | |
| Katona József Színház | Katona József Színház | Hungary, Kecskemét, Katona József tér 5 | 1971-04-02 | 2007-05-05 | 1971–2007 | 2 | |
| Katholisches Pfarreizentrum Heilig Geist | Katholisches Pfarreizentrum Heilig Geist | Switzerland, Wetzikon, Langfurrenstrasse 10 | 2010-05-16 | -- | 2010 | 1 | |
| Kath. Pfarrzentrum | Kath. Pfarrzentrum | Germany, Ueberlingen | 1980-03-15 | -- | 1980 | 1 | |
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