Le Merlerault () is a former commune in the Orne department in north-western France. On 1 January 2025, it was merged into the new commune of Merlerault-le-Pin.
The former Commune is within the Natura 2000 protected area of Bocages et vergers du sud Pays d'Auge.
The former commune is part of a 20,593 hectare, Natura 2000 conservation area, called the Haute vallée de l'Orne et affluents.
Le Merlerault is twinned with: