The Battle of Leuze was a minor Cavalry engagement of the Nine Years' War that took place on 18 September 1691 between a detachment of French and a superior Allied force.

Marshal Luxembourg had been informed that William III of Orange had left for England, in the supposition that the campaign of 1691 was at its end.

Luxembourg was near Tournai and sent out a reconnaissance under Marsilly, from whom he learned that the main body of the Allied army was retreating, leaving a rear-guard of cavalry, consisting of just 3,000 men, under the Count of Tilly at Leuze.

He sent a detachment to follow the movements of the main body, and with the squadrons of Villars and Marsilly he attacked the smaller party without warning.

This further increased Allied losses, because the squadrons which rushed to the rescue did not all arrive on the battlefield at the same time, allowing the elite French troops to defeat them one by one.