Louis Charles d'Albert, 2nd Duke of Luynes (25 December 1620 – 10 October 1690), was a French nobleman and peer of France.

His paternal grandparents were Anne de Rodulf and Honoré d'Albert (1540–1592), seigneur of Luynes (in today's département Bouches-du-Rhône in Provence), who was in the service of the three last Valois kings and of Henry IV of France.

At the Château de Vaumurier, which he had built in the immediate vicinity of the abbey of Port-Royal-des-Champs, he lived closely with the Solitaires of Port-Royal, welcoming Blaise Pascal and the young playwright Jean Racine, and participating in many of the intellectual works of the scholars "Messieurs de Port-Royal", including the translation of the New Testament.

[4] As Mestre de camp (equivalent to colonel), he distinguished himself at the head of his regiment attacked by the Spaniards in front of Arras on August 2, 1640 as well as on several other occasions.

[5] Together, they were the parents of six children:[6] After the death of his first wife, he married his aunt Princess Anne de Rohan-Montbazon (1640–1684) on 4 September 1661.