List of critically endangered mammals
As of January 2020, the International Union for Conservation of Nature (IUCN) listed 203 critically endangered mammalian species, including 31 which are tagged as possibly extinct. Of all evaluated mammalian species, 3.5% are listed as critically endangered. The IUCN also lists 60 mammalian subspecies as critically endangered. Of the subpopulations of mammals evaluated by the IUCN, 18 species subpopulations have been assessed as critically endangered. Additionally 900 mammalian species (15% of those evaluated) are listed as data deficient, meaning there is insufficient information for a full assessment of conservation status.