Marie-Charlotte Hippolyte de Campet de Saujon, by marriage Countess of Boufflers (6 September 1725- 1800), was a French femme de lettres and salon hostess.
Nicknamed "l'idole" by Madame du Deffand, she was a lady in waiting to the Duchesse de Chartres and a mistress of Chartres' brother, the Prince de Conti.