| Kanalbåten Henrik Ibsen, Løveids sluser | Kanalbåten Henrik Ibsen, Løveids sluser | Norway, Skien, Skotfoss, Festiviteten | 2007-05-23 | 2007-06-14 | 2007 | 1 | |
| Kandy | Kandy | Sri Lanka, Kandy | 2006-09-26 | -- | 2006 | 1 | |
| Kangjiantang Theatre | Kangjiantang Theatre | China, Yuzhong, Chongqing, 181 Zhongshan 1st Road | 1948-02-08 | -- | 1948 | 1 | |
| Kanonhallen | Kanonhallen | Norway, Oslo, Peter Møllers vei 2 | 2012-02-23 | 2012-02-26 | 2012 | 1 | |
| Kanonhallen | Kanonhallen | Denmark, Copenhagen, Østerfælled Torv 37 | 1994-11-02 | 1994-11-07 | 1994 | 1 | |
| Kansai Geijutsuza | Kansai Geijutsuza (Kansai Geijutsuza Studio) | Japan, Osaka | 1958-11-19 | -- | 1958 | 1 | |
| Kansan Näyttämö | Kansan Näyttämö | Finland, Helsinki | 1908-03-19 | -- | 1908–1930 | 6 | |
| Kansas City | Kansas City | United States of America, Kansas City | 1995-- | -- | 1995 | 1 | |
| Kant-Gymnasium | Kant-Gymnasium | Germany, Pirmasens | 1984-12-07 | -- | 1984 | 1 | |
| Kantiforum | Kantiforum | Switzerland, Wohlen, Allmendstrasse 26 | 2009-09-15 | -- | 2009 | 1 | |
| Kantonsschule Kollegium Schwyz | Kantonsschule Kollegium Schwyz | Switzerland, Schwyz, Kollegiumstrasse 24 | 2011-02-18 | 2011-02-26 | 2011 | 1 | |
| Kapitelberget | Kapitelberget | Norway, Skien, Christian Magnus Falsens gate | 1983-05-30 | 1983-06-12 | 1983 | 2 | |
| Kaposvár | Kaposvár | Hungary, Kaposvár | 1890-08-26 | 1928-10-29 | 1890–1935 | 20 | |
| Karaganda Regional Academic Kazakh Drama Theater | Karaganda, in the S. Seifullin Karaganda Regional Academic Kazakh Drama Theater | Kazakhstan, Karaganda | 2023-12-20 | 2023-12-20 | 2023 | 1 | |
| Karasjok | Karasjok | Norway, Karasjok | 1970-09-03 | -- | 1970–2009 | 4 | |
| Karcag | Karcag | Hungary, Karcag | -- | -- | | | |
| Kardam (Arman) | Кардам (Kardam) | Bulgaria, Kardam | -- | -- | | | |
| Karlbergsteatern | Karlbergsteatern | Sweden, Åmål, Schölingsgatan 7 | 2010-10-06 | -- | 2010 | 1 | |
| Karlshamns Teater | Karlshamns Teater | Sweden, Karlshamn | 1880-06-21 | -- | 1880–1905 | 2 | |
| Karlskoga | Karlskoga | Sweden | 2002-09-05 | -- | 2002 | 1 | |
| Karlskrona | Karlskrona | Sweden, Karlskrona | 1936-10-21 | -- | 1936 | 1 | |
| Karlskrona Teater | Karlskrona Teater | Sweden, Karlskrona | 1880-06-04 | 1886-01-08 | 1880–1905 | 6 | |
| Karlsruhe | Karlsruhe | Germany, Karlsruhe | -- | -- | | | |
| Karlstad | Karlstad | Sweden, Karlstad | 1879-10-15 | 1991-03-15 | 1879–1991 | 9 | |
| Karlstads Teater | Karlstads Teater | Sweden, Karlstad | 1880-09-21 | -- | 1880–1905 | 3 | |
| Karmøy | Karmøy | Norway, Karmøy | 2005-05-30 | -- | 2005 | 1 | |
| Karmøy Kino | Karmøy Kino | Norway, Kopervik, Stangalandgata 7 | 1969-09-22 | -- | 1969–2003 | 2 | |
| Karpedammen Scene | Karpedammen Scene | Norway, Oslo, Akershus festning | 2017-06-08 | 2019-06-16 | 2017–2019 | 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 | |
| Karthika Thirunal Theatre | Karthika Thirunal Theatre | India, Thiruvananthapuram, East fort | 2011-06-03 | -- | 2011 | 1 | |
| Karuss skole | Karuss skole | Norway, Kristiansand, Kristiansand | 2006-10-19 | -- | 2006 | 1 | |
| Kasernescenen | Kasernescenen | Denmark, Aarhus, Langelandsgade 139 | 2006-05-18 | 2006-05-20 | 2006 | 1 | |
| Katariinan kamari | Katariinan kamari | Finland, Kokkola | 2006-01-14 | 2006-05-27 | 2006 | 1 | |
| Katedralskolan | Katedralskolan | Sweden, Lund, Stora Södergatan 22 | 2006-10-20 | 2006-10-21 | 2006 | 1 | |
| Kath. Hochschulgemeinde AKI | Kath. Hochschulgemeinde AKI | Switzerland, Zürich, Hirschengraben 86 | 2006-05-26 | -- | 2006 | 1 | |
| Kath. Pfarreizentrum | Kath. Pfarreizentrum | Switzerland, Windisch, Hauserstrasse 18 | 2011-04-29 | -- | 2011 | 1 | |
| Kath. Pfarrzentrum | Kath. Pfarrzentrum | Germany, Ueberlingen | 1980-03-15 | -- | 1980 | 1 | |
| Katholisches Pfarreizentrum Heilig Geist | Katholisches Pfarreizentrum Heilig Geist | Switzerland, Wetzikon, Langfurrenstrasse 10 | 2010-05-16 | -- | 2010 | 1 | |
| Katona József Színház | Katona József Színház | Hungary, Kecskemét, Katona József tér 5 | 1971-04-02 | 2007-05-05 | 1971–2007 | 2 | |
| Katoto Secondary School | Katoto Secondary School | Malawi, Katoto | 2006-06-04 | -- | 2006 | 1 | |
| Katrineholm | Katrineholm | Sweden, Katrineholm | 1936-10-24 | 2019-09-18 | 1936–2019 | 3 | |
| Kattateatret | Kattateatret | Norway, Oslo, Ullevålsveien 31 | 2003-01-07 | 2003-01-18 | 2003 | 1 | |
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