The San MartÃÂn Island woodrat (Neotoma bryanti martinensis) is an extinct subspecies of Bryant's woodrat in the family Cricetidae.
It was endemic to San MartÃÂn Island, located off the Pacific coast of the central Baja California Peninsula, part of southwestern Baja California state in northwestern Mexico.
The primary threat to the San MartÃÂn Island woodrat was predation by feral cats on the island.