| Kuressaare | Kuressaare | Estonia, Kuressaare | -- | -- | | | |
| Krøderen | Krøderen (Kroederen) | Norway, Krøderen | -- | -- | | | |
| Klagenfurt | Klagenfurt | Austria, Klagenfurt | -- | -- | | | |
| Kaiserliches Deutsches Hoftheater | Kaiserliches Deutsches Hoftheater St. Petersburg | Russia, Saint Petersburg | -- | -- | | | |
| Köln | Köln | Germany, Köln | -- | -- | | | |
| Keble O’Reilly Theatre | Keble O’Reilly Theatre | England | -- | -- | | | |
| Königsberg | Königsberg | Germany, Königsberg | -- | -- | | | |
| Koppang | Koppang | Norway, Koppang | -- | -- | | | |
| Krasnyy Fakel | Krasnyy Fakel (The Novosibirsk State Academic Drama Theatre «Red Torch») | Russia, Novosibirsk Oblast, Ulitsa Lenina, 19 | -- | -- | | | |
| Komaba Agora Theater | ΑΓΟPA (Komaba Agora Theater) (Komaba Agora Theater) | Japan, Meguro-ku, Komaba 1-11-13, Yubinbango | -- | -- | | | |
| Kaliningrad | Kaliningrad | Russia, Kaliningrad | -- | -- | | | |
| Kinderspace | Kinderspace | Japan, Tokyo | -- | -- | | | |
| Kulturni centar Zrenjanina | Kulturni centar Zrenjanina (Zrenjanin Cultural Center) | Serbia, Zrenjanin, Narodne omladine 1 | -- | -- | | | |
| Kammerbühne | Kammerbühne | Germany, Schwerin | -- | -- | | | |
| Kulttuuritehdas Korjaamo | Kulttuuritehdas Korjaamo | Finland, Helsinki | -- | -- | | | |
| Konak Sahnesi | İzmir Devlet Tiyatrosu Konak Sahnesi ( Izmir State Theatre Konak Stage) (Konak Stage) | Turkey, Izmir, Mithatpaşa Caddesi No: 110 Konak | -- | -- | | | |
| Korgen | Korgen | Norway, Korgen | -- | -- | | | |
| Kneževo | Kneževo | Bosnia and Herzegovina | -- | -- | | | |
| Kalundborg | Kalundborg | Denmark, Kalundborg | -- | -- | | | |
| Karcag | Karcag | Hungary, Karcag | -- | -- | | | |
| Koriyama | Koriyama | Japan, Koriyama | -- | -- | | | |
| Kärnten | Kärnten | Austria | -- | -- | | | |
| Kings Lynn Arts Centre | Kings Lynn Arts Centre | England, King's Lynn, Norfolk, 29 King Street | -- | -- | | | |
| Kotka | Kotka | Finland, Kotka | -- | -- | | | |
| Karlsruhe | Karlsruhe | Germany, Karlsruhe | -- | -- | | | |
| Kenosha | Kenosha | United States of America, Kenosha | -- | -- | | | |
| Kent | Kent | England, Kent | -- | -- | | | |
| Kokkola | Kokkola | Finland, Kokkola | -- | -- | | | |
| Kyoto | Kyoto | Japan, Kyoto | -- | -- | | | |
| Kardam (Arman) | Кардам (Kardam) | Bulgaria, Kardam | -- | -- | | | |
| Koszalin | Koszalin | Poland, Koszalin | -- | -- | | | |
| Kleine Bühne Flensburg | Kleine Bühne Flensburg | Germany, Flensburg, Nordergraben 12 | 2011-05-26 | -- | 2011 | 1 | |
| Kenendy Theatre | Kennedy Theatre | United States of America, Honolulu, 1770 East-West Rd | 2018-04-13 | 2018-04-22 | 2018 | 1 | |
| Kieler Woche | Kieler Woche | Germany, Kiel | 1967-06- | -- | 1967 | 1 | |
| Kunstencentrum De Vlasbloem | Kunstencentrum De Vlasbloem | Belgium, Nieuwkerken-Waas, Gyselstraat 9 | 2007-03-10 | 2007-03-31 | 2007 | 1 | |
| Katholisches Pfarreizentrum Heilig Geist | Katholisches Pfarreizentrum Heilig Geist | Switzerland, Wetzikon, Langfurrenstrasse 10 | 2010-05-16 | -- | 2010 | 1 | |
| Krokom | Krokom | Sweden, Krokom | 1989-09-27 | 1989-09-27 | 1989 | 1 | |
| Kulturni centar Travno | Kulturni centar Travno (Cultural Center Travno) | Croatia, Zagreb, Božidara Magovca 17 | 2021-03-01 | -- | 2021 | 1 | |
| Kulturring Neuhausen | Kulturring Neuhausen | Germany, Neuhausen auf den Fildern, Fuchslöcherstraße 15 | 2007-03-20 | -- | 2007 | 1 | |
| Kansas City | Kansas City | United States of America, Kansas City | 1995-- | -- | 1995 | 1 | |
| Kaiserbädersaal (Maritim Hotel) | Kaiserbädersaal (Maritim Hotel) | Germany, Heringsdorf, Strandpromenade/Kulmstraße 33 | 2017-10-19 | -- | 2017 | 1 | |
| Kvinnemuseet | Kvinnemuseet | Norway, Kongsvinger, 2211 Kongsvinger | 2002-08-29 | 2002-09-13 | 2002 | 1 | |
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