Victor Joseph Planchon (12 January 1863, Paris - 1 February 1935, Lyon) was a French chemist.
At the age of fifteen, he joined the staff at a government laboratory in Paris; doing work for the patent office and customs.
Originally interested in photographic plates, he switched to studying celluloid; attempting to create a completely flat surface.
His technique was so successful that he founded a company to produce the new film: the Union Photographique de Boulogne.
Shortly after, he settled in Lyon and established the "Société anonyme des Pellicules françaises", known as PLAVIC (PLAnchon VICtor).