| King, Lorin | Lorin King | Sound Designer | 2001 | 1 | |
| Klysner, Ise | Ise Klysner | Sound Designer | 2006 | 1 | |
| Klugman, Cecilia | Cecilia Klugman | Sound Designer | 2007 - 2009 | 1 | |
| Killian, Scott | Scott Killian | Sound Designer | 2009 | 1 | |
| Kennedy, Carl | Carl Kennedy | Sound Designer | 2011 | 1 | |
| Kinney, Lee | Lee Kinney | Sound Designer | 2016 - 2020 | 2 | |
| Kato, Fumio | Fumio Kato | Sound Designer | 1936 | 1 | |
| Kakari, Shuhei | Shuhei Kakari | Sound Designer | 1999 | 1 | |
| Klykov, Vladimir | Vladimir Klykov | Sound Designer | 2017 - 2019 | 9 | |
| Keir, Kalen | Kalen Keir | Sound Designer | 2017 | 1 | |
| Kalvenes, Tor Endre | Tor Endre Kalvenes | Sound Designer | 2019 | 1 | |
| Knuševicki, Ruslan | Ruslan Knuševicki | Sound Designer | 2019 | 1 | |
| Kontogeorgis, Thomas | Thomas Kontogeorgis | Sound Designer | | 1 | |
| Kunos, László | László Kúnos | Translator | 1991 - 2019 | 54 | |
| Koukoulas, Leon, | Leon Koukoulas | Translator | 1921 - 2010 | 91 | |
| Kusuyama, Masao | Masao Kusuyama | Translator | 1925 - 1936 | 7 | |
| Kamel, Youssef | Youssef Kamel | Translator | 2006 | 1 | |
| Kolev, Svetoslav | Svetoslav Kolev | Translator | 1994 - 2008 | 4 | |
| Kirschenstein, Ch. | Ch. Kirschenstein | Translator | 1957 | 1 | |
| Klaus, Rudolf U. | Rudolf U. Klaus | Translator | 1964 | 4 | |
| Klingenfeld, Emma, | Emma Klingenfeld | Translator | 1876 - 2007 | 57 | 57 |
| Kapteyn, F., | F. Kapteyn | Translator | 1894 | 2 | |
| Kapteijn, F., | F. Kapteijn | Translator | 1896 | 3 | |
| Kučera, Karel, | Karel Kučera | Translator | 1899 - 1923 | 5 | |
| Kawecka, Helena, | Helena Kawecka | Translator | 1902 | 1 | |
| Kosterka, Hugo, | Hugo Kosterka | Translator | 1903 | 5 | |
| Kraus, Arnošt, | Arnošt Kraus | Translator | 1904 - 1921 | 11 | |
| Kotljarevski, Stefan Mladenov, | Stefan Mladenov Kotljarevski | Translator | 1904 | 2 | |
| Kempner, Gabriel, | Gabriel Kempner | Translator | 1906 - 1918 | 2 | |
| Klintscharov, Ivan G., | Ivan G. Klintscharov (Ivan G. Klintscharov) | Translator | 1907 | 1 | |
| Kochanowski, Stanisław, | Stanisław Kochanowski | Translator | 1909 | 1 | |
| Kostula, H., | H. Kostula | Translator | 1910 | 1 | |
| Kasprowicz, Jan, | Jan Kasprowicz | Translator | 1910 - 1923 | 8 | |
| Kiran, Hartvig, | Hartvig Kiran | Translator | 1973 - 1996 | 2 | |
| Krausová-Lesná, Milada, | Milada Krausová-Lesná | Translator | 1922 - 1928 | 4 | |
| Krawczykowski, Zbigniew | Zbigniew Krawczykowski | Translator | 1963 - 2011 | 14 | |
| Konuschlieva, Rajna | Rajna Konuschlieva | Translator | 1977 | 3 | |
| Kleijn, Tom | Tom Kleijn | Translator | 1992 - 2008 | 21 | |
| Košak, Vinko | Vinko Košak | Translator | 1928 | 2 | |
| Króliński, Kazimierz | Kazimierz Króliński | Translator | 1913 | 1 | |
| Kastro, Kaiti | Kaiti Kastro | Translator | 1978 | 3 | |
| Kulundžić, Josip | Josip Kulundžić | Translator | 1940 - 1996 | 8 | |
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