260px|thumb|Étienne François Geoffroy
Étienne François Geoffroy (13 February 1672 – 6 January 1731) was a French physician and chemist, best known for his 1718 affinity tables. He first contemplated a career as an apothecary, but then decided to practice medicine. He is sometimes known as Geoffroy the Elder.
Biography
Geoffroy was born in Paris. After studying at Montpellier he accompanied Marshal Tallard on his embassy to London in 1698 and thence travelled to the Netherlands and Italy. Returning to Paris he became professor of chemistry at the Jardin du Roi and of pharmacy and medicine at the Collège Royal, and dean of the faculty of medicine. He died in Paris on 6 January 1731.
His brother Claude Joseph, known as Geoffroy the younger, was also a chemist.