The Large Luzon Carpomys is a large rodent of Luzon in the Philippines. It was recorded in the canopy of a mossy mountain forest.
The observed animal was described as having dense, soft reddish-brown fur and a dark mask around the eyes.
The first reported observation in natural habitat was in the canopy of mature mossy forest at about 2,350 m elevation.
An extinction-risk assessment has not been added yet.