François de Blanchefort de Créquy, later Marquis de Marines, 2 October 1629 to 3 February 1687, was a 17th-century French noble and soldier, who served in the wars of Louis XIV of France.
He came from a powerful and well-connected family, his grandfather Charles I de Blanchefort being a Marshal of France. Rewarded for supporting the Royalists during the 1648-1653 civil war, his elder brother Charles was a senior advisor to Louis while François had a successful military career.
Promoted Marshall in 1668, like other French soldiers of his generation he was over shadowed by Condé and Turenne. He fell from favour in April 1672 and although subsequently reinstated failed to regain his former prestige. He retired from service in 1684 and died in Paris in 1687.