| Kovalčiukas, Vladimiras | Vladimiras Kovalčiukas | Designer | 1988 | 1 | |
| Kawecki, Kathryn | Kathryn Kawecki | Designer | 2010 - 2011 | 2 | |
| Koch, Patrick | Patrick Koch | Designer | 2010 | 1 | 1 |
| Klopfer, Karol | Karol Klopfer | Designer | 1892 - 1900 | 2 | |
| Knoll, Waldemar | Waldemar Knoll | Designer | 1897 | 1 | |
| Klein, Julius | Julius Klein | Designer | 1906 - 1916 | 7 | |
| Kempin, Kurt | Kurt Kempin | Designer | 1913 - 1917 | 12 | |
| Kaulsky, H. | H. Kaulsky | Designer | 1917 | 1 | |
| Krehan, Hermann | Hermann Krehan | Designer | 1925 | 2 | |
| Kalbfuß, Friedrich | Friedrich Kalbfuß | Designer | 1935 | 1 | |
| Kempgens, Erich | Erich Kempgens | Designer | 1941 | 1 | |
| Koniarsky, Helmut | Helmut Koniarsky | Designer | 1946 | 1 | |
| Krusev, P. | P. Krusev | Designer | 1901 | 1 | |
| Kal´manson, M. | M. Kal´manson | Designer | 1908 | 1 | |
| Kita, Renzo | Renzo Kita | Designer | 1909 | 1 | |
| Kennedy, Joseph B. | Joseph B. Kennedy | Designer | 2004 - 2006 | 23 | |
| Kajita, Kei | Kei Kajita | Designer | 1912 | 1 | |
| Kuga, J. | Jānis Kuga (J. Kuga) | Designer | 1914 | 2 | |
| Kundziņš, P. | P. Kundziņš | Designer | 1915 | 1 | |
| Kuzyszyn, Ryszard | Ryszard Kuzyszyn | Designer | 1971 | 1 | |
| Kibart, David | David Kibart | Designer | 1974 - 1980 | 2 | |
| Kiskiinen, Tero | Tero Kiskiinen | Designer | 1978 | 1 | |
| Khell, Zsolt | Zsolt Khell | Designer | 2007 - 2010 | 6 | |
| Kellogg, Marjorie Bradley | Marjorie Bradley Kellogg | Designer | 1981 - 1990 | 2 | 1 |
| Keatley, Gwen | Gwen Keatley | Designer | 1975 | 1 | |
| Klosowski, Andreas | Andreas Klosowski | Designer | 1978 | 1 | |
| Kearns, Hugh | Hugh Kearns | Designer | 1975 | 1 | |
| Kroll, Natasha | Natasha Kroll | Designer | 1970 - 1974 | 4 | |
| Kitaev, M. | M. Kitaev | Designer | 1979 | 1 | |
| Kołodziej, Marian | Marian Kołodziej | Designer | 1975 - 1979 | 2 | |
| Kralj, Matthias | Matthias Kralj | Designer | 1966 - 1985 | 4 | |
| Krzywinski, Bjørn | Bjørn Krzywinski | Designer | 1981 | 1 | 1 |
| Kozhuharov, Borislav | Borislav Kozhuharov | Designer | 1979 | 1 | |
| King, Lawrence | Lawrence King | Designer | 1981 | 1 | 1 |
| Kinch, Miro | Miro Kinch | Designer | 1972 - 1973 | 2 | |
| Kotanen, Ed | Ed Kotanen | Designer | 1972 | 1 | |
| Klonis, Kleovoulos | Kleovoulos Klonis | Designer | 1933 - 1965 | 16 | |
| Krumenacher, Fritz | Fritz Krumenacher | Designer | 1957 | 1 | |
| Kotri, Dejan | Dejan Kotri | Designer | 1982 | 1 | |
| Kamburova, Elena | Elena Kamburova | Designer | 1993 | 1 | |
| Kastmann, Trond | Trond Kastmann | Designer | 1983 | 1 | |
| KUBUS, - | - KUBUS | Designer | 1998 | 1 | |
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