| Kísértetek, 19171106 | Kísértetek | 19171106 | 6th November 1917 | Užhorod | Užhorod | Ukraine | |
| Kungsämnena, 18980902 | Kungsämnena | 18980902 | 2nd September 1898 | Svenska Teatern | Svenska Teatern | Finland | |
| Kuklen dom, 20061101 | Kuklen dom | 20061101 | 1st November 2006 | Bulgarian Army Theatre | Bulgarian Army Theatre | Bulgaria | |
| Kronprätendenten, Die, 18980501 | Die Kronprätendenten | 18980501 | 1st May 1898 | K. K. Hofburgtheater | K. K. Hofburgtheater | Austria | |
| Kad se mi mrtvi probudimo, 19830917 | Kad se mi mrtvi probudimo | 19830917 | 17th September 1983 | Gradsko dramsko kazalište Gavella | Gradsko dramsko kazalište Gavella | Croatia | |
| Kämparne på Helgeland, 18760324 | Kämparne på Helgeland | 18760324 | 24th March 1876 | Teatern i Lund | Teatern i Lund | Sweden | |
| Kísértetek, 19121113 | Kísértetek | 19121113 | 13th November 1912 | Rožňava | Rožňava | Slovak Republic | |
| Kämparne på Helgeland, 18780227 | Kämparne på Helgeland | 18780227 | 27th February 1878 | Nya Teatern | Nya Teatern | Finland | |
| Když my mrtví procitneme, 20040319 | Když my mrtví procitneme | 20040319 | 19th March 2004 | Divadlo Františka Xavera Šaldy (Severočeské divadlo) | Divadlo Františka Xavera Šaldy (Severočeské divadlo) | Czech Republic | |
| Kobieta z morza, 19920831 | Kobieta z morza | 19920831 | 31st August 1992 | Nationaltheatret Malersalen | Nationaltheatret Malersalen | Norway | |
| Kansanvihollinen, 1972 | Kansanvihollinen | 1972 | 1972 | Lappeenrannan Kaupunginteatteri | Lappeenrannan Kaupunginteatteri | Finland | |
| Kísértetek, 19050414 | Kísértetek | 19050414 | 14th April 1905 | Pápa | Pápa | Hungary | |
| Kísértetek, 19270717 | Kísértetek | 19270717 | 17th July 1927 | Brașov | Brașov | Romania | |
| Konsertant Peer Gynt av Edvard Grieg. Tekst av Henrik Ibsen, 20040601 | Konsertant Peer Gynt av Edvard Grieg. Tekst av Henrik Ibsen | 20040601 | 1st June 2004 | Barcelona | Barcelona | Spain | |
| Khane ye Aroosak, 20060514 | Khane ye Aroosak | 20060514 | 14th May 2006 | Khaneye Namayesh - Art Faculty/Tahar Molavi | Khaneye Namayesh - Art Faculty/Tahar Molavi | Iran | |
| Kaiser und Galiläer, 19110428 | Kaiser und Galiläer | 19110428 | 28th April 1911 | Düsseldorfer Stadttheater | Düsseldorfer Stadttheater | Germany | |
| Kísértetek, 19240502 | Kísértetek | 19240502 | 2nd May 1924 | Mosonmagyaróvár | Mosonmagyaróvár | Hungary | |
| Kronprätendenten, Die, 19161013 | Die Kronprätendenten | 19161013 | 13th October 1916 | Großherzogliches Hof-Theater Darmstadt | Großherzogliches Hof-Theater Darmstadt | Germany | |
| Kobieta morza, 19600702 | Kobieta morza | 19600702 | 2nd July 1960 | Teatr Popularny | Teatr Popularny | Poland | |
| Kummittelijoita, 19720427 | Kummittelijoita | 19720427 | 27th April 1972 | Oulun Kaupunginteatteri | Oulun Kaupunginteatteri | Finland | |
| Kukol'nyj dom, 195601 | Kukol'nyj dom (A Doll's House) | 195601 | January 1956 | Bijsk dramatičeski teatr | Bijsk dramatičeski teatr | Russia | |
| Kísértetek, 19220403 | Kísértetek | 19220403 | 3rd April 1922 | Pécs | Pécs | Hungary | |
| Kärlekens komedi, 18951207 | Kärlekens komedi | 18951207 | 7th December 1895 | Theatret i Trondheim | Theatret i Trondheim | Norway | |
| Kísértetek, 19351101 | Kísértetek | 19351101 | 1st November 1935 | Budapest | Budapest | Hungary | |
| Klein Eyolf, 19161116 | Klein Eyolf | 19161116 | 16th November 1916 | Grand Théâtre | Grand Théâtre | Netherlands | |
| Kämparne på Helgeland, 18860219 | Kämparne på Helgeland | 18860219 | 19th February 1886 | Teater i Rådhussalongen | Teater i Rådhussalongen | Finland | |
| Kísértetek, 19120425 | Kísértetek | 19120425 | 25th April 1912 | Topoľčany | Topoľčany | Slovak Republic | |
| Kjærlighedens Komedie, 18811005 | Kjærlighedens Komedie | 18811005 | 5th October 1881 | Christiania Theater | Christiania Theater | Norway | |
| Kísértetek, 19261001 | Kísértetek | 19261001 | 1st October 1926 | Szarvas | Szarvas | Hungary | |
| Klein Eyolf, 19300218 | Klein Eyolf | 19300218 | 18th February 1930 | Blauer Saal der Mustermesse | Blauer Saal der Mustermesse | Switzerland | |
| Kísértetek, 19130222 | Kísértetek | 19130222 | 22nd February 1913 | Szekszárd | Szekszárd | Hungary | |
| Kärlekens komedi, 18940503 | Kärlekens komedi | 18940503 | 3rd May 1894 | Svenska Teatern | Svenska Teatern | Finland | |
| Kaiser und Galiläer, 20160701 | Kaiser und Galiläer | 20160701 | 1st July 2016 | Oberammergau, Passionstheater | Passionstheater Oberammergau | Germany | |
| Kuklen dom, 19811211 | Kuklen dom | 19811211 | 11th December 1981 | | Dramatitschen teatar Vraza | Bulgaria | |
| Kämparne på Helgeland, 18791130 | Kämparne på Helgeland | 18791130 | 30th November 1879 | Nya Teatern | Nya Teatern | Sweden | |
| Kísértetek, 19110404 | Kísértetek | 19110404 | 4th April 1911 | Ocna Mureș | Ocna Mureș | Romania | |
| Kísértetek, 19920521 | Kísértetek | 19920521 | 21st May 1992 | Újvidéki Színház (Novosadsko pozorište) | Újvidéki Színház (Novosadsko pozorište) | Serbia | |
| Kærlighedens Komedie, 19280322 | Kærlighedens Komedie | 19280322 | 22nd March 1928 | Tønsberg | Tønsberg | Norway | |
| Kad se mi mrtvi probudimo, 20011001 | Kad se mi mrtvi probudimo (When We Dead Awaken) | 20011001 | 1st October 2001 | Hrvatsko narodno kazalište Ivana pl. Zajca u Rijeci | Hrvatsko narodno kazalište Ivana pl. Zajca u Rijeci (Croatian National Theatre Ivan Pl. Zajc Rijeka) | Croatia | |
| Kogato nie, martvite, se probudim, 19941108 | Kogato nie, martvite, se probudim | 19941108 | 8th November 1994 | Tschitalischte Slavjanska | The Lounge of Tschitalischte Slavjanska besseda | Bulgaria | |
| Kísértetek, 19250703 | Kísértetek | 19250703 | 3rd July 1925 | Győr | Győr | Hungary | |
| Kjærlighedens Komedie, 19050914 | Kjærlighedens Komedie | 19050914 | 14th September 1905 | Nationaltheatret | Nationaltheatret | Norway | |
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