List of threatened, endangered and extinct species in the Mariana Islands
The following is a list of species (or subspecies) in the Mariana Islands, defined by the International Union for Conservation of Nature (IUCN) Red List or by the U.S. Fish & Wildlife Service (USFWS), as being extinct, critically endangered, endangered, threatened, vulnerable, conservation dependent, or near threatened. This article addresses species found in the geopolitical states of Guam and the Commonwealth of the Northern Mariana Islands (CNMI).