Lucien Gaillard (1861–1942) was a French jeweler, metalworker, and designer associated with the Art Nouveau movement, renowned for his refined craftsmanship and deep engagement with Japanese art. The son of the prominent Parisian jeweler Ernest Gaillard, he trained within the family firm before establishing his own workshop, where he gained acclaim for delicate, nature-inspired jewelry featuring insects, plants, and flowing organic forms. Around the turn of the 20th century, Gaillard expanded into the production of objets d’art—such as vases, boxes, and decorative metalwork—often incorporating techniques and aesthetics drawn from Japanese craftsmanship. His collaboration with Japanese artisans, particularly those skilled in metalworking traditions like articulated sculpture, distinguished his work and contributed to his reputation as one of the leading interpreters of Japonism in French decorative arts.