- Kenichi Fukui Fukui
- Kathleen Lonsdale
- Karl Ziegler
- Karl Wilhelm Scheele
- Julius Lothar Meyer
- Josepha Louise Proust
- Joseph Black
- Joseph Achille Le Bel
- John Howard Northrop
- John Frederic Daniell
- John Dalton Dalton
- John Cornforth
- John Charles Polanyi
- John Anthony Pople Pople
- Jérôme Karle
- Jean
- Jean Baptiste Andre Andre Baptiste Dumas Dumas
- Jaroslav Heyrovsky
- James Young Young
- Jacobus Henricus Van't Hoff