Le Mesnil-Patry () is a former commune in the Calvados department in the Normandy region in northwestern France. On 1 January 2017, it was merged into the new commune Thue et Mue.
In World War II, on 11 June 1944 the Battle of Le Mesnil-Patry was fought to the east of the town, involving units of the 12th SS Panzer Division, 3rd Canadian Infantry Division and 2nd Canadian Armoured Brigade.