Louis de Melun, Duke of Joyeuse (October 1694 – 31 July 1724) was a French nobleman.
He was the Prince of Epinoy, Baron then Duke of Joyeuse (1714) and Peer of France, Baron of Cysoing, Antoing and Wiers, Earl of Saint-Pol, Viscount of Gand, châtelain de Bapaume, Lord of Villemareuil, of Vaucourtois and of Saint-Jean-les-Deux-Jumeaux.
On 23 February 1716 he married Armande de La Tour d'Auvergne, daughter of Emmanuel Théodose de La Tour d'Auvergne and a grand daughter of the famous Marie Anne Mancini.
Louis died in 1724, during a hunting party at Marie Anne's ancestral home, the Château de Chantilly.
As Louis had no children with Armande either, the county of Saint-Pol, as well as the principality of Joyeuse went to his eldest nephew, the young Duke of Rohan, who was a son of his sister Anne Julie.