The siege of Le Quesnoy (28 August – 13 September 1793) saw a force made up of Habsburg Austrians and French Royalists led by François Sébastien Charles Joseph de Croix, Count of Clerfayt lay siege to a Republican French garrison commanded by François Goullus.

After two and a half week siege, the French capitulated after suffering heavy losses.

The War of the First Coalition operation was fought at Le Quesnoy, located near the border with Belgium about 27 kilometres (17 mi) west of Maubeuge.

The Le Quesnoy garrison laid down their arms on 13 September, but the siege of Dunkirk was a total failure.

Undeterred, the Austrian host next laid siege to Maubeuge, leading to the Battle of Wattignies in mid-October.

The Coalition besieging force under the Count of Clerfayt numbered about 18,000 troops in 24 battalions and 10 squadrons.