Gabriel Dupuy (5 February 1840, Angouleme - 5 February 1913, Bordeaux)
was a French entomologist who specialised in Lepidoptera.
Depuy taught at École nationale d'Agriculture de Montpellier (Hérault). He studied the butterflies and moths of France notably Charente, Deux-Sèvres, Dordogne and Gironde
He was a Member of the Société Entomologique de France