La Chapelle-en-Juger () is a former commune in the Manche department in Normandy in north-western France. On 1 January 2016, it was merged into the new commune of Thèreval.
The local name of the commune is La Chapelle-Enjuger, as indicated in local sollicitor's documents.
After the liberation of the area by Allied Forces in early June 1944, engineers of the Ninth Air Force IX Engineering Command began construction of a combat Advanced Landing Ground to the south of the town. Declared operational on 5 July, the airfield was designated as "A-5", it was used by the 404th Fighter Group which flew P-47 Thunderbolts until the end of August when the unit moved into Central France. Afterward, the airfield was closed.