Louis Philogène Brulart, Marquis de Puysieulx (1727), Comte de Sillery (12 May 1702, Paris – 8 December 1770, Paris) was a French foreign minister.
He was the son of Carloman Philogène Brulart, Comte de Sillery (ca. 1663–1727) and Mary-Louise Bigot. He married Charlotte Félicité Le Tellier (1708–1783), on July 19, 1722; they had a daughter, Adelaide Felicite. He was a Knight of the Order of the Holy Spirit (1748), Knight of the Order of Saint Michael (1748).