Jerome Karle (1918- ) American chemist, crystallographer and winner of the 1985 Nobel Prize in Chemistry
Paul Karrer, (1889–1971), Swiss chemist, 1937 Nobel Prize in Chemistry
Karl Wilhelm Gottlob Kastner (1783–1857)
Friedrich August Kekulé von Stradonitz, (1829–1896), German organic chemist
Edward Calvin Kendall (1886-1972) American chemist, winner of 1950 Nobel Prize in Medicine
Frederick George Keyes (1885-1976) Canadian-American physical chemist
Emil Knoevenagel, (1865–1921)
Adolph Wilhelm Hermann Kolbe, (1818–1884)
Izaak Kolthoff, (1894–1993) Father of Analytical Chemistry
Aleksandra Kornhauser, (born 1926), chemist
Albrecht Kossel (1853-1927) German chemist and physician, winner of 1910 Nobel Prize in Medicine
Harold Kroto, (born 1939), English chemist, 1996 Nobel Prize in Chemistry
Richard Kuhn (1900–1967), 1938 Nobel Prize in Chemistry
