Johan Gadolin, (1760–1852), Finnish chemist
Jean-Charles-Galinard de Marignac, Swiss chemist (1817-1894)
Josiah Willard Gibbs (1839-1903) American chemist, physicist and mathematician
Alfred Goodman Gilman (1941- ) American biochemist, winner of 1994 Nobel Prize in Medicine
Victor Goldschmidt, (1888–1947) Father of Modern Geochemistry
Ljubo Golic, (born 1932), chemist
Francois Auguste Victor Grignard, (1871–1935), 1912 Nobel Prize in Chemistry
Robert H. Grubbs, (born 1942), 2005 Nobel Prize in Chemistry
Cato Maximilian Guldberg (1836-1902) Norwegian chemist
