Léon Guillaume (du) Tillot (Bayonne, 22 May 1711 — Paris, 1774) was a French politician infused with liberal ideals of the Enlightenment, who from 1759 was the minister of the Duchy of Parma under Philip, Duke of Parma and his wife Princess Louise-Élisabeth of France. At a time when both Bourbon France and Bourbon Spain thought of Parma as a strategic point of interest, Tillot favoured French policies abroad and wide-ranging reforms within the Duchy of Parma. He was made marchese di Felino.