The Pagai spiny rat (Maxomys pagensis) is a species of rodent in the family Muridae. It is found only in the Mentawai Islands of Indonesia, on South Pagai, North Pagai, Sipora, and Siberut islands.

References Baillie, J. 1996. Maxomys pagensis. 2006 IUCN Red List of Threatened Species. Downloaded on 19 July 2007.