Marie Françoise Catherine de Beauvau, Marquise of Boufflers (8 December 1711 – 1 July 1786), commonly known as Madame de Boufflers, was a French noblewoman.

Witty, well-educated and beautiful, the marquise de Boufflers wrote verse and drew in pastel.

The Marquise du Châtelet fell passionately in love with the poet and became best friends with the Marquise de Boufflers, thus completely ruining the plans of Father Menou, Stanislas' confessor, who wanted to use her to dislodge the Marquise de Boufflers as chief mistress to the king.

Her witty poem "Sentir avec ardeur" is cited in French and in full by the twentieth-century Modernist poet Marianne Moore in the notes to Moore's poem "Tom Fool at Jamaica."

Stanislaus I had a chartreuse cottage constructed along the northern side of the Palace of Lunéville.