| Kindaigeki Kyokai (The Modern Theatre Society) | Kindaigeki Kyokai (The Modern Theatre Society) | 1912 – 1914 | 3 | |
| Königliches Hoftheater in Stuttgart | Königliches Hoftheater in Stuttgart | 1910 – 1912 | 4 | |
| Knut Lindroths sällskap | Knut Lindroths sällskap | 1907 – 1908 | 5 | |
| Kystsogevekene 2005 | Kystsogevekene 2005 | 2005 | 6 | |
| Kattas Figurteater Ensemble | Kattas Figurteater Ensemble | 2011 | 8 | |
| Kristiania Centraltheaters Tourné | Kristiania Centraltheaters Tourné | 1903 – 1904 | 11 | |
| K.V. Het Nederlandsch Tooneel | K.V. Het Nederlandsch Tooneel | 1889 | 14 | |
| Kulturskatten i Telemark | Kulturskatten i Telemark | 2006 | 37 | |
| Kungliga Dramatiske Teatern | Kungliga Dramatiske Teatern | 1908 – 2013 | 58 | 2 |
| Kongelige Teater, Det | Det Kongelige Teater | 1870 – 2012 | 384 | 4 |
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