| Kukol'nyj dom, 19390420 | Kukol´nyj dom | 19390420 | 20th April 1939 | Moskovskij teatr imeni Leninskogo komsomola | Moskovskij teatr imeni Leninskogo komsomola | Russia | |
| Kaptein Alvings minne, 20000406 | Kaptein Alvings minne | 20000406 | 6th April 2000 | Chateau Neuf Teaterscenen | Chateau Neuf Teaterscenen | Norway | |
| Korolevstvo - na stol!, 19981022 | Korolevstvo - na stol! | 19981022 | 22nd October 1998 | Sfera teatr | Sfera teatr | Russia | |
| Komödie der Liebe, Die, 19061109 | Die Komödie der Liebe | 19061109 | 9th November 1906 | Pfauentheater | Pfauentheater | Switzerland | |
| Kísértetek, 19240710 | Kísértetek | 19240710 | 10th July 1924 | Kamara Színház | Kamara Színház | Hungary | |
| Komödie der Liebe, 19000713 | Komödie der Liebe | 19000713 | 13th July 1900 | Somossy-Mulató | Somossy-Mulató | Hungary | |
| Kukol'nyj dom, 195702 | Kukol'nyj dom (A Doll's House) | 195702 | February 1957 | Tomskij dramatičeski teatr imeni Čkalova | Tomskij dramatičeski teatr imeni Čkalova | Russia | |
| Kansanvihollinen, 19750323 | Kansanvihollinen | 19750323 | 23rd March 1975 | Tampereen Teatteri | Tampereen Teatteri | Finland | |
| Kísértetek, 19150510 | Kísértetek | 19150510 | 10th May 1915 | Timișoara | Timișoara | Romania | |
| Kísértetek, 19431109 | Kísértetek | 19431109 | 9th November 1943 | Miskolc | Miskolc | Hungary | |
| Klein Eyolf, 19200922 | Klein Eyolf | 19200922 | 22nd September 1920 | Burgtheater | Burgtheater | Austria | |
| Komedia Miłości, 19130214 | Komedia Miłości | 19130214 | 14th February 1913 | Teatr Miejski | Teatr Miejski | Ukraine | |
| Kísértetek, 19120912 | Kísértetek | 19120912 | 12th September 1912 | Balassagyarmat | Balassagyarmat | Hungary | |
| Klein Eyolf, 18950127 | Klein Eyolf | 18950127 | 27th January 1895 | Theater van Lier | Theater van Lier | Netherlands | |
| Kungsämnena, 18980314 | Kungsämnena | 18980314 | 14th March 1898 | Vasateatern | Vasateatern | Sweden | 1 |
| Kongsemnerne, 19211122 | Kongsemnerne | 19211122 | 22nd November 1921 | Nationaltheatret | Nationaltheatret | Norway | 1 |
| Kouklospito, To, 20130518 | To Kouklospito | 20130518 | 18th May 2013 | | Teatro 104 | Greece | 1 |
| Kronprätendenten, Die, 19060908 | Die Kronprätendenten | 19060908 | 8th September 1906 | Königliches Hoftheater | Königliches Hoftheater | Germany | 1 |
| Kongsemnene, 19930227 | Kongsemnene | 19930227 | 27th February 1993 | Teater Ibsen | Teater Ibsen | Norway | 1 |
| Kjærlighetens Fråtsere. Et stykke basert på Ibsens Kjærlighetens Komedie, 20120119 | Kjærlighetens Fråtsere. Et stykke basert på Ibsens Kjærlighetens Komedie | 20120119 | 19th January 2012 | Selbusjøen Hotell, rom 204 | Selbusjøen Hotell, rom 204 | Norway | 1 |
| Kronprätendenten, Die, 18760130 | Die Kronprätendenten | 18760130 | 30th January 1876 | Herzogliches Hoftheater | Herzogliches Hoftheater | Germany | 1 |
| Keiser og Galilæer. 1ste Del: Cæsars Frafald, 19030320 | Keiser og Galilæer. 1ste Del: Cæsars Frafald | 19030320 | 20th March 1903 | Nationaltheatret | Nationaltheatret | Norway | 2 |
| Kämparna på Helgeland, 18751103 | Kämparna på Helgeland | 18751103 | 3rd November 1875 | Nya Teatern | Nya Teatern | Sweden | 2 |
| Kaiser und Galiläer, 18980316 | Kaiser und Galiläer | 18980316 | 16th March 1898 | Belle-Alliance Theater | Belle-Alliance Theater | Germany | 2 |
| Kungsämnena, 18790119 | Kungsämnena | 18790119 | 19th January 1879 | Nya Teatern | Nya Teatern | Sweden | 2 |
| kyria apo ti thalassa, I, 20100219 | I kyria apo ti thalassa | 20100219 | 19th February 2010 | Dimotiko Theatro Apollon | Dimotiko Theatro Apollon | Greece | 3 |
| Kummittelijat, 20040227 | Kummittelijat | 20040227 | 27th February 2004 | Petroskoin Kansallinen teatteri | Petroskoin Kansallinen teatteri | Russia | 3 |
| Kai mes mirę nubusim, 20100925 | Kai mes mirę nubusim | 20100925 | 25th September 2010 | Juozo Miltinio Dramos Teatras | Juozo Miltinio Dramos Teatras | Lithuania | 3 |
| Klein Eyolf, 19071102 | Klein Eyolf | 19071102 | 2nd November 1907 | Lessingtheater | Lessingtheater | Germany | 3 |
| Kummitused, 20030208 | Kummitused | 20030208 | 8th February 2003 | Eesti Draamateater | Eesti Draamateater | Estonia | 3 |
| Kongsemnerne, 19930217 | Kongsemnerne | 19930217 | 17th February 1993 | Trøndelag Teater | Trøndelag Teater | Norway | 4 |
| Kaldt Produkt - (Cold Product), 20071116 | Kaldt Produkt - (Cold Product) | 20071116 | 16th November 2007 | Nationaltheatret Torshovteatret | Nationaltheatret Torshovteatret | Norway | 4 |
| Klein Eyolf, 20060617 | Klein Eyolf | 20060617 | 17th June 2006 | Schauspielhaus, Staatstheater Stuttgart | Schauspielhaus, Staatstheater Stuttgart | Germany | 5 |
| Kleine Eyolf, 20120501 | Kleine Eyolf | 20120501 | 1st May 2012 | Nationale Toneel Gebouw | Nationale Toneel Gebouw | Netherlands | 5 |
| Klein Eyolf, 20070524 | Klein Eyolf | 20070524 | 24th May 2007 | Bayerisches Staatsschauspiel, Residenz Theater | Bayerisches Staatsschauspiel, Residenz Theater | Germany | 5 |
| Kjærlighetens komedie, 20080308 | Kjærlighetens komedie | 20080308 | 8th March 2008 | Oseberg Kulturhus | Oseberg Kulturhus | Norway | 5 |
| Kuklen dom, 20110915 | Kuklen dom | 20110915 | 15th September 2011 | | Dramatitschen teatar | Bulgaria | 7 |
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