| Kleine Eyolf, 20000322 | Kleine Eyolf | 20000322 | 22nd March 2000 | Stadstheater | Stadstheater | Netherlands | |
| Kronprätendenten, Die, 19180103 | Die Kronprätendenten | 19180103 | 3rd January 1918 | Stadttheater Basel | Stadttheater Basel | Switzerland | |
| Klein Eyolf, 19150222 | Klein Eyolf | 19150222 | 22nd February 1915 | Stadttheater Bern | Stadttheater Bern | Switzerland | |
| Komödie der Liebe, 19171002 | Komödie der Liebe | 19171002 | 2nd October 1917 | Stadttheater Bern | Stadttheater Bern | Switzerland | |
| Kaiser und Galiläer, 19330314 | Kaiser und Galiläer | 19330314 | 14th March 1933 | Stadttheater Bochum | Stadttheater Bochum | Germany | |
| Kronprätendenten, Die, 19340120 | Die Kronprätendenten | 19340120 | 20th January 1934 | Stadttheater Bochum | Stadttheater Bochum | Germany | |
| Kronprätendenten, Die, 18920507 | Die Kronprätendenten | 18920507 | 7th May 1892 | Stadttheater Breslau | Stadttheater Breslau | Poland | |
| Kronprätendenten, Die, 19040409 | Die Kronprätendenten | 19040409 | 9th April 1904 | Stadttheater Brünn | Stadttheater Brünn | Czech Republic | |
| Kronprätendenten, Die, 19080901 | Die Kronprätendenten | 19080901 | 1st September 1908 | Stadttheater Graz | Stadttheater Graz | Austria | |
| Klein Eyolf, 18950227 | Klein Eyolf | 18950227 | 27th February 1895 | Stadttheater Heidelberg | Stadttheater Heidelberg | Germany | |
| Klein Eyolf, 19040120 | Klein Eyolf | 19040120 | 20th January 1904 | Stadttheater Libau | Stadttheater Libau | Latvia | |
| Klein Eyolf, 19531209 | Klein Eyolf | 19531209 | 9th December 1953 | Stadttheater St. Gallen | Stadttheater St. Gallen | Switzerland | |
| Kronprätendenten, Die, 19061130 | Die Kronprätendenten | 19061130 | 30th November 1906 | Stadttheater Zürich | Stadttheater Zürich | Switzerland | |
| Kærlighedens Komedie, 18830826 | Kærlighedens Komedie | 18830826 | 26th August 1883 | Stavanger Teater | Stavanger Teater | Norway | |
| Kjærlighedens Komedie, 19081226 | Kjærlighedens Komedie | 19081226 | 26th December 1908 | Stavanger Teater | Stavanger Teater | Norway | |
| Kjæmpehøien, 20060623 | Kjæmpehøien | 20060623 | 23rd June 2006 | Stiklestad Nasjonale Kultursenter | Stiklestad Nasjonale Kultursenter | Norway | |
| Kärlekens komedi, 18901020 | Kärlekens komedi | 18901020 | 20th October 1890 | Stora Teatern | Stora Teatern | Sweden | |
| Kärlekens komedi, 19040920 | Kärlekens komedi | 19040920 | 20th September 1904 | Stora Teatern | Stora Teatern | Sweden | |
| Kungsämnena, 19130421 | Kungsämnena | 19130421 | 21st April 1913 | Stora Teatern | Stora Teatern | Sweden | |
| Kämparne på Helgeland, 18760128 | Kämparne på Helgeland | 18760128 | 28th January 1876 | Stora Teatern Norrköping | Stora Teatern Norrköping | Sweden | |
| Klein Eyolf, 20020201 | Klein Eyolf | 20020201 | 1st February 2002 | Studiobühne der Universität Paderborn | Studiobühne der Universität Paderborn | Germany | |
| Komodia tou erota, 20121225 | I komodia tou erota (Love's Comedy / Η κωμωδία του έρωτα) | 20121225 | 25th December 2012 | Stydio Kypselis | Stydio Kypselis
(Kypseli Studio) | Greece | |
| Klein Eyolf, 19611022 | Klein Eyolf | 19611022 | 22nd October 1961 | Städtische Bühnen Münster | Städtische Bühnen Münster | Germany | |
| Klein Eyolf, 19900215 | Klein Eyolf | 19900215 | 15th February 1990 | Städtische Theater Karl-Marx-Stadt (Schauspielhaus) | Städtische Theater Karl-Marx-Stadt (Schauspielhaus) | Germany | |
| Klein Eyolf, 19191023 | Klein Eyolf | 19191023 | 23rd October 1919 | Staatstheater Dresden (Schauspielhaus) | Staatstheater Dresden (Schauspielhaus) | Germany | |
| Kronprätendenten, Die, 19370422 | Die Kronprätendenten | 19370422 | 22nd April 1937 | Staatstheater Dresden (Schauspielhaus) | Staatstheater Dresden (Schauspielhaus) | Germany | |
| Klein Eyolf, 20020616 | Klein Eyolf | 20020616 | 16th June 2002 | Staatstheater Kassel | Staatstheater Kassel | Germany | |
| Kísértetek, 19070123 | Kísértetek | 19070123 | 23rd January 1907 | Subotica | Subotica | Serbia | |
| Kísértetek, 191404 | Kísértetek | 191404 | April
1914 | Subotica | Subotica | Serbia | |
| Kísértetek, 19170113 | Kísértetek | 19170113 | 13th January 1917 | Subotica | Subotica | Serbia | |
| Kísértetek, 19280608 | Kísértetek | 19280608 | 8th June 1928 | Subotica | Subotica | Serbia | |
| Koldt produkt af Matias Faldbakken, 20091008 | Koldt produkt af Matias Faldbakken | 20091008 | 8th October 2009 | Sukkerkogeriet | Sukkerkogeriet | Denmark | |
| Kämparne på Helgeland, 18760920 | Kämparne på Helgeland | 18760920 | 20th September 1876 | Sundsvall | Sundsvall | Sweden | |
| Kansan vihaaja, 18890925 | Kansan vihaaja | 18890925 | 25th September 1889 | Suomalainen Teatteri | Suomalainen Teatteri | Finland | |
| Kuninkaan alut, 18941017 | Kuninkaan alut | 18941017 | 17th October 1894 | Suomalainen Teatteri | Suomalainen Teatteri | Finland | |
| Kansan vihaaja, 18980320 | Kansan vihaaja | 18980320 | 20th March 1898 | Suomalainen Teatteri | Suomalainen Teatteri | Finland | |
| Kuninkaanalut, 18820314 | Kuninkaanalut | 18820314 | 14th March 1882 | Suomalainen Teatteri | Suomalainen Teatteri | Finland | |
| Kummittelijoita, 19040907 | Kummittelijoita | 19040907 | 7th September 1904 | Suomen Kansallisteatteri | Suomen Kansallisteatteri | Finland | |
| Kansanvihollinen, 19280321 | Kansanvihollinen | 19280321 | 21st March 1928 | Suomen Kansallisteatteri | Suomen Kansallisteatteri | Finland | |
| Kummittelijoita, 19830202 | Kummittelijoita | 19830202 | 2nd February 1983 | Suomen Kansallisteatteri | Suomen Kansallisteatteri | Finland | |
| Kansanvihollinen, 19171204 | Kansanvihollinen | 19171204 | 4th December 1917 | Suomen Kansallisteatteri | Suomen Kansallisteatteri | Finland | |
| Kungsämnena, 18881216 | Kungsämnena | 18881216 | 16th December 1888 | Svenska Teatern | Svenska Teatern | Finland | |
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