Lalacelle () is a commune in the Orne department in north-western France.
The commune is made up of the following collection of villages and hamlets, Livet, Lalacelle, Lentillère, La Broussette and Les Orjus.
The commune is in the Normandie-Maine Regional Natural Park.
The source of the Mayenne (river) is located in this commune.
The commune along with 26 others contains part of the Forêt d'ÃÂcouves.
The Commune along with another 11 communes shares part of a 5,255 hectare, Natura 2000 conservation area, called the Vallée du Sarthon et affluents.