- Kenichi Fukui
- Kathleen Lonsdale
- Karl Ziegler Ziegler
- Carl Wilhelm Scheele
- Julius Lothar Meyer
- Joseph Louis 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
- Jerome Karle
- Jean
- Jean Baptiste Andre Baptiste Andre Dumas Dumas
- Jaroslav Heyrovský
- James Young
- Jacobus Henricus Van't Hoff