Marie Victoire Sophie de Noailles, Countess of Toulouse (Versailles, 6 May 1688 – Paris, 30 September 1766), was a French noble and courtier.
She was the daughter of Anne Jules de Noailles, the 2nd Duke of Noailles, and Marie-Françoise de Bournonville.
Her second spouse was Louis Alexandre de Bourbon, Count of Toulouse, the youngest legitimized son of King Louis XIV of France and his maîtresse-en-titre, Madame de Montespan.