Hormisdas Pilon (April 1, 1857 – July 15, 1937) was a Quebec politician. He was the Member of the Quebec Legislative Assembly for 30 years. Pilon, born in Vaudreuil, Quebec west of Montreal studied in general medicine at Collège Bourget in Rigaud and then studied veterinarian medicine. He practised his profession for several years and later was also a farmer as well as a school commissioner in Vaudreuil for 12 years. He also served as the mayor of the Saint-Michel de Vaudreuil parish from 1900 to 1911.