Foulques or Foucaud du Merle (died 1314) was a Marshal of France.
He was Seigneur of Gacé and Bellou-en-Houlme, and Baron of Le Merlerault, Briouze and Messei.
In 1302 he was made Marshal of France by Philip IV following the deaths of Simon de Melun and Guy I of Clermont at the Battle of the Golden Spurs, in which du Merle had also fought.
In June 1303 du Merle led a force of 1,400 soldiers to bolster the defenders of Tournai.
[3] Du Merle died in 1314 while leading the French army in Flanders.