The Flores giant rat (Papagomys armandvillei) is a rodent of the family Muridae that occurs on the island of Flores in Indonesia. It has been recorded in Rutong Protection Forest. The species is found in primary, secondary and disturbed forest over a wide range of elevations.
Papagomys armandvillei is the only extant species in the genus Papagomys, with another smaller species, Papagomys theodorverhoeveni, known from subfossil remains.
Guy Musser describes the Flores giant rat as having small, round ears, a chunky body, and a small tail, and as appearing to be adapted for life on the ground with refuge in burrows. It has dense dark hair (pelage). Analysis of the teeth suggests a diet of leaves, buds, fruit, and certain kinds of insects as inferred by large hypsodont teeth.
The Flores giant rat has been suggested to have been a prey item of the extinct dwarf human species Homo floresiensis.