| Karlsruhe | Karlsruhe | Germany, Karlsruhe | -- | -- | | | |
| Kulturni centar Zrenjanina | Kulturni centar Zrenjanina (Zrenjanin Cultural Center) | Serbia, Zrenjanin, Narodne omladine 1 | -- | -- | | | |
| Kalundborg | Kalundborg | Denmark, Kalundborg | -- | -- | | | |
| Kokkola | Kokkola | Finland, Kokkola | -- | -- | | | |
| Karcag | Karcag | Hungary, Karcag | -- | -- | | | |
| Koriyama | Koriyama | Japan, Koriyama | -- | -- | | | |
| Krøderen | Krøderen (Kroederen) | Norway, Krøderen | -- | -- | | | |
| Köln | Köln | Germany, Köln | -- | -- | | | |
| Konak Sahnesi | İzmir Devlet Tiyatrosu Konak Sahnesi ( Izmir State Theatre Konak Stage) (Konak Stage) | Turkey, Izmir, Mithatpaşa Caddesi No: 110 Konak | -- | -- | | | |
| Kenosha | Kenosha | United States of America, Kenosha | -- | -- | | | |
| Koppang | Koppang | Norway, Koppang | -- | -- | | | |
| Kent | Kent | England, Kent | -- | -- | | | |
| Kardam (Arman) | Кардам (Kardam) | Bulgaria, Kardam | -- | -- | | | |
| Kaliningrad | Kaliningrad | Russia, Kaliningrad | -- | -- | | | |
| Koszalin | Koszalin | Poland, Koszalin | -- | -- | | | |
| Kyoto | Kyoto | Japan, Kyoto | -- | -- | | | |
| Kungliga Teatern | Kungliga Teatern | Sweden, Stockholm, Gustav Adolfs torg 2 | -- | -- | | | |
| Kuressaare | Kuressaare | Estonia, Kuressaare | -- | -- | | | |
| Klagenfurt | Klagenfurt | Austria, Klagenfurt | -- | -- | | | |
| Kaiserliches Deutsches Hoftheater | Kaiserliches Deutsches Hoftheater St. Petersburg | Russia, Saint Petersburg | -- | -- | | | |
| Königsberg | Königsberg | Germany, Königsberg | -- | -- | | | |
| Karlskrona | Karlskrona | Sweden, Karlskrona | -- | -- | | | |
| Komaba Agora Theater | ΑΓΟPA (Komaba Agora Theater) (Komaba Agora Theater) | Japan, Meguro-ku, Komaba 1-11-13, Yubinbango | -- | -- | | | |
| Korgen | Korgen | Norway, Korgen | -- | -- | | | |
| Kneževo | Kneževo | Bosnia and Herzegovina | -- | -- | | | |
| Keble O’Reilly Theatre | Keble O’Reilly Theatre | England | -- | -- | | | |
| Kammerbühne | Kammerbühne | Germany, Schwerin | -- | -- | | | |
| Kings Lynn Arts Centre | Kings Lynn Arts Centre | England, King's Lynn, Norfolk, 29 King Street | -- | -- | | | |
| Kärnten | Kärnten | Austria | -- | -- | | | |
| Krasnyy Fakel | Krasnyy Fakel (The Novosibirsk State Academic Drama Theatre «Red Torch») | Russia, Novosibirsk Oblast, Ulitsa Lenina, 19 | -- | -- | | | |
| Kinderspace | Kinderspace | Japan, Tokyo | -- | -- | | | |
| Kotka | Kotka | Finland, Kotka | -- | -- | | | |
| Kulttuuritehdas Korjaamo | Kulttuuritehdas Korjaamo | Finland, Helsinki | -- | -- | | | |
| Kirche Schönau | Kirche Schönau | Switzerland, Thun | 1985-11-29 | 1985-11-30 | 1985 | 1 | |
| Khios | Khios | Greece, Khios | 1904-07-28 | -- | 1904 | 1 | |
| Kom-Teatterin Kannatus | Kom-Teatterin Kannatus r.y. (KOM-teatteri) | Finland, Kapteeninkatu 26, 00140 Helsinki, Finland | 2023-09-07 | 2023-12-09 | 2023 | 1 | |
| King’s Head Theatre | King’s Head Theatre | England, London, 115 Upper Street | 1996-06-19 | -- | 1996 | 1 | |
| Kinolokalet | Kinolokalet | Norway, Åsgårdstrand | 1956-05-21 | -- | 1956 | 1 | |
| Krefeld | Krefeld | Germany, Krefeld | 2002-02-17 | -- | 2002 | 1 | |
| Kulturhuset Zahl | Kulturhuset Zahl | Norway, Nesna, Nesna | 2009-04-29 | -- | 2009 | 1 | |
| King's College Great Hall | King's College Great Hall | New Zealand, Auckland, Golf Avenue, Otahuhu | 2002-08-07 | 2002-08-09 | 2002 | 1 | |
| Kant-Gymnasium | Kant-Gymnasium | Germany, Pirmasens | 1984-12-07 | -- | 1984 | 1 | |
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