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

Marie Victoire was born at Versailles on 6 May 1688. She was one of twenty children. Many of her sisters married into important noble families in France. Her sister Marie Christine married Antoine de Gramont, duc de Guiche in 1687. Another sister, Lucie Félicité, married the Maréchal d'Estrées, great-nephew of King Henri IV's famous mistress, Gabrielle d'Estrées. Yet another sister married Charles de Baume Le Blanc, the nephew of Louise de La Vallière, and became the mother of Louis César de La Baume Le Blanc.

In 1707, Marie Victoire married Louis de Pardaillan de Gondrin, whose father, Louis Antoine de Pardaillan de Gondrin, was the son of Louis Henri de Pardaillan de Gondrin, marquis de Montespan (1640–1701) and of his wife, Françoise Athénaïs de Rochechouart de Mortemart, marquise de Montespan. Thus, while her first husband was the grandson of Madame de Montespan, the second, the comte de Toulouse (1678–1737), who was the son of Madame de Montespan with Louis XIV, was her first husband's uncle, ten years younger than his nephew.

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