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. Head and body length is 41–45 cm (16–17.5 in) and tail length is 33–70 cm (13–27.5 in). These dimensions are about twice as large as those of a typical brown rat (Rattus norvegicus), which suggests about eight times the body mass.