Folin

Folin may refer to :
 * Otto Folin (1867–1934), a Swedish-born American chemist
 * Folin's reagent, a reagent to detect level of amines in amino acids
 * Haut-Folin, the highest point in the region of Burgundy on France
 * Léopold de Folin (1817–1896), a French oceanographer
 * a suffix found in natural phenol names (as in punicafolin or taxifolin) to specify the leaf origin of the substance