| Kaptein Alvings minne, 20000406 | Kaptein Alvings minne | 20000406 | 6th April 2000 | Chateau Neuf Teaterscenen | Chateau Neuf Teaterscenen | Norway, Oslo, Slemdalsveien 15 | |
| Kukol'nyj dom, 19070123 | Кукольный дом (A Doll's House) (Kukol'nyj dom) | 19070123 | 23rd January 1907 | Teatr V. F. Komissarzhevskoi | Teatr V. F. Komissarzhevskoi | Russia, St Petersburg, Italiyanskaya ul 19 | |
| Klein Eyolf, 20061001 | Klein Eyolf | 20061001 | 1st October 2006 | Schauspielhaus, Staatstheater Stuttgart | Schauspielhaus, Staatstheater Stuttgart | Germany, Stuttgart, Schloßgarten 6 | |
| Komedia Miłości, 19130214 | Komedia Miłości | 19130214 | 14th February 1913 | Teatr Miejski | Teatr Miejski | Ukraine, Lviv, Svobody Ave., 28 | |
| Kísértetek, 19171106 | Kísértetek | 19171106 | 6th November 1917 | Užhorod | Užhorod | Ukraine, Užhorod | |
| Kaldt Produkt - (Cold Product), 20080615 | Kaldt Produkt - (Cold Product) | 20080615 | 15th June 2008 | Hessisches Staatstheater | Hessisches Staatstheater | Germany, Wiesbaden, Christian-Zais-Straße 3 | |
| Kjærlighedens Komedie, 18770302 | Kjærlighedens Komedie | 18770302 | 2nd March 1877 | Christiania Theater | Christiania Theater | Norway, Kristiania (Oslo), Bankplassen | |
| Kísértetek, 19230520 | Kísértetek | 19230520 | 20th May 1923 | Miskolc | Miskolc | Hungary, Miskolc | |
| Kuninkaanalut, 18820314 | Kuninkaanalut | 18820314 | 14th March 1882 | Suomalainen Teatteri | Suomalainen Teatteri | Finland, Helsinki, 1 Läntinen Teatterikuja | |
| Kærlighedens Komedie, 18810506 | Kærlighedens Komedie | 18810506 | 6th May 1881 | Theatret i Trondheim | Theatret i Trondheim | Norway, Trondheim, Prinsens Gate 20 | |
| Kronprätendenten, Die, 19131002 | Die Kronprätendenten | 19131002 | 2nd October 1913 | Leipziger Stadttheater, Neues Theater | Leipziger Stadttheater, Neues Theater | Germany, Leipzig, Augustusplatz | |
| Kärlekens komedi, 18900217 | Kärlekens komedi | 18900217 | 17th February 1890 | Malmö Teater | Malmö Teater | Sweden, Malmö | |
| Kis Eyolf, 19330102 | Kis Eyolf | 19330102 | 2nd January 1933 | Mosonmagyaróvár | Mosonmagyaróvár | Hungary, Mosonmagyaróvár | |
| Kísértetek, 19650401 | Kísértetek | 19650401 | 1st April 1965 | Sepsiszentgyörgyi Állami Magyar Színház | Sepsiszentgyörgyi Állami Magyar Színház | Romania, Sfântu Gheorghe | |
| Kronprätendenten, Die, 19370422 | Die Kronprätendenten | 19370422 | 22nd April 1937 | Staatstheater Dresden (Schauspielhaus) | Staatstheater Dresden (Schauspielhaus) | Germany, Dresden, Glacisstr. 28 | |
| Kummitused, 20030208 | Kummitused | 20030208 | 8th February 2003 | Eesti Draamateater | Eesti Draamateater | Estonia, Tallinn, Pärnu maantee 5 | |
| Koga nij, martvite, se probudim, 19070317 | Koga nij, martvite, se probudim | 19070317 | 17th March 1907 | Naroden teatar | Naroden teatar | Bulgaria, Sofia, Deacon Ignatius' 5 | |
| Kísértetek, 19131209 | Kísértetek | 19131209 | 9th December 1913 | Oravița | Oravița | Romania, Oravița | |
| Kleine Eyolf, 20000422 | Kleine Eyolf | 20000422 | 22nd April 2000 | Theater de Tamboer | Theater de Tamboer | Netherlands, Hoogeveen, Hoofdstraat 17 | |
| Kísértetek, 19240209 | Kísértetek | 19240209 | 9th February 1924 | Gyöngyös | Gyöngyös | Hungary, Gyöngyös | |
| kyra tis thalassas, I, 194002 | I kyra tis thalassas | 194002 | February 1940 | Theatro Rex | Theatro Rex | Greece, Komotini | |
| kouklospito, Ena, 19950211 | Ena kouklospito | 19950211 | 11th February 1995 | | Dimotiko Theatro Kastorias | Greece, Kastoria | |
| Kuklen dom, 20120517 | Kuklen dom | 20120517 | 17th May 2012 | | Vratza | Bulgaria, Vratza | |
| Kísértetek, 19291128 | Kísértetek | 19291128 | 28th November 1929 | Baja | Baja | Hungary, Baja | |
| Kukol'nyj dom, 195605 | Kukol'nyj dom (A Doll's House) | 195605 | May 1956 | Moscow | Moscow | Russia, Moscow | |
| Komödie der Liebe, 19150121 | Komödie der Liebe | 19150121 | 21st January 1915 | Herzogliches Hof-Theater | Herzogliches Hof-Theater | Germany, Braunschweig | |
| Kaiser und Galiläer. I. Teil: Cäsars Abfall, 19240927 | Kaiser und Galiläer. I. Teil: Cäsars Abfall | 19240927 | 27th September 1924 | Schauspielhaus Düsseldorf | Schauspielhaus Düsseldorf | Germany, Düsseldorf, Carl-Theodor-Straße 8 | |
| Kísértetek, 19120926 | Kísértetek | 19120926 | 26th September 1912 | Levice | Levice | Slovak Republic, Levice | |
| Kísértetek, 20160930 | Kísértetek | 20160930 | 30th September 2016 | Weöres Sándor Színház | Weöres Sándor Színház | Hungary, Szombathely, Akacs Mihály utca 7. | |
| Kleine Eyolf, 20000327 | Kleine Eyolf | 20000327 | 27th March 2000 | Theater Bellevue | Theater Bellevue | Netherlands, Amsterdam, Leidsekade 90 | |
| Kjærlighetens komedie, 19731117 | Kjærlighetens komedie | 19731117 | 17th November 1973 | Oslo Nye Teater (Centralteatret) | Oslo Nye Teater (Centralteatret) | Norway, Oslo, Akersgata 38 | |
| Kísértetek, 19250522 | Kísértetek | 19250522 | 22nd May 1925 | Gyula | Gyula | Hungary, Gyula | |
| kouklospito, Ena, 19810410 | Ena kouklospito | 19810410 | 10th April 1981 | Athens | Athens | Greece, Athens | |
| Kísértetek, 19270207 | Kísértetek | 19270207 | 7th February 1927 | Kaposvár | Kaposvár | Hungary, Kaposvár | |
| Kukol'nyj dom, 19110307 | Kukol'nyj dom (A Doll's House) | 19110307 | 7th March 1911 | Malyj Teatr | Malyj Teatr | Russia, Moscow, ul. Bol'shaya Serpuhovskaya, 44 | |
| Klein Eyolf, 19031126 | Klein Eyolf | 19031126 | 26th November 1903 | Theatersaal des Etablissements Tivoli | Theatersaal des Etablissements Tivoli | Germany, Weimar | |
| Kísértetek, 19070123 | Kísértetek | 19070123 | 23rd January 1907 | Subotica | Subotica | Serbia, Subotica | |
| Kukol'nyj dom, 194402 | Kukol'nyj dom (A Doll's House) | 194402 | February 1944 | Teatr dramy Orel | Teatr dramy Orel | Russia, Orel, Orel | |
| Klein Eyolf, 19110522 | Klein Eyolf | 19110522 | 22nd May 1911 | Königliches Hoftheater | Königliches Hoftheater | Germany, Stuttgart | |
| Kísértetek, 19110106 | Kísértetek | 19110106 | 6th January 1911 | Makó | Makó | Hungary, Makó | |
| kyra tis thalassas, I, 20120106 | I kyra tis thalassas | 20120106 | 6th January 2012 | Diachrono Theatro | Diachrono Theatro | Greece, Athina, P.C., Pytheou 52 | |
| Kísértetek, 19241017 | Kísértetek | 19241017 | 17th October 1924 | Renaissance Színház | Renaissance Színház | Hungary, Budapest | |
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