Marquis Alexandre de Prouville de Tracy (c. 1596 or 1603–1670) was a French aristocrat, statesman, and military leader. He was the seigneur of Tracy-le-Val and Tracy-le-Mont (Picardy) He first made his name as a regimental commander in Germany in the 1640s, then was appointed Commissary-General of the French troops serving in Germany. In 1647 he represented France at the Ulm negotiations with Sweden and Bavaria. Marquis Alexandre de Prouville de Tracy died in Paris in the parish of Saint-Eustache on April 28, 1670.