Gabriel-Joseph-Marie-Augustin Ferrier was a French portrait painter and orientalist.
His father was a pharmacist. He began his studies at the École des Beaux-Arts, where he worked with Ernest Hébert and Isidore Pils. His first exhibit was at the Salon in 1869. Two years later, he was awarded the Prix de Rome for his depiction of a scene from the Flood and studied at the French Academy in Rome from 1873 to 1876.
Upon returning to France, he specialized in painting portraits of notable figures connected with the Third Republic. In 1883, he took an extended trip to Algeria, where he created works in the Orientalist style. Some of those works earned him a Gold Medal at the Exposition Universelle (1889).
He later was named a Professor of Design at the Maison d'éducation de la Légion d'honneur, then became a lecturer at the École des Beaux-arts, succeeding Jean-Léon Gérôme. He also taught at the Académie Julian. In 1906, he was elected to the Académie des Beaux-Arts. He was also a member of the Société des Artistes Français. In 1911, he became a Knight in the Légion d'honneur.