# List of critically endangered mammals

* Extinct in the wild (EW): 2 species
* Critically endangered (CR): 203 species
* Endangered (EN): 505 species
* Vulnerable (VU): 536 species
* Near threatened (NT): 345 species
* Least concern (LC): 3,306 species
* Data deficient (DD): 872 species
* 5850 extant species have been evaluated
* 4978 of those are fully assessed
* 3651 are not threatened at present
* 1244 to 2116 are threatened
* 81 to 83 are extinct or extinct in the wild:
** 81 extinct (EX) species
** 2 extinct in the wild (EW)
** 0 possibly extinct [CR(PE)]
** 0 possibly extinct in the wild [CR(PEW)]
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. As these species typically have small distributions and/or populations, they are intrinsically likely to be threatened, according to the IUCN. While the category of data deficient indicates that no assessment of extinction risk has been made for the taxa, the IUCN notes that it may be appropriate to give them "the same degree of attention as threatened taxa, at least until their status can be assessed".
This is a complete list of critically endangered mammalian species and subspecies evaluated by the IUCN. Species considered possibly extinct by the IUCN are marked as such. Species and subspecies which have critically endangered subpopulations (or stocks) are indicated. Where possible common names for taxa are given while links point to the scientific name used by the IUCN.

## Primates

There are 63 species and 36 subspecies of primates assessed as critically endangered.

### Gibbons

Species
* Black crested gibbon
** Tonkin black crested gibbon
** West Yunnan black crested gibbon
** Central Yunnan black crested gibbon
** Laotian black crested gibbon
* Hainan black crested gibbon
* Northern white-cheeked gibbon
* Eastern black crested gibbon

### Great apes

Species
* Eastern gorilla
** Eastern lowland gorilla
* Western gorilla
** Cross River gorilla
** Western lowland gorilla
* Bornean orangutan
* Sumatran orangutan
* Tapanuli orangutan
Subspecies
* Western chimpanzee

### Lemurs

Species
* Sibree's dwarf lemur
* Gray-headed lemur
* Blue-eyed black lemur
* Mongoose lemur
* Lac Alaotra bamboo lemur
* Golden bamboo lemur
* Greater bamboo lemur
* Indri
* Manombo sportive lemur
* Sahamalaza sportive lemur
* Northern sportive lemur
* Hawks' sportive lemur
* Gerp's mouse lemur
* Marohita mouse lemur
* Silky sifaka
* Diademed sifaka
* Perrier's sifaka
* Golden-crowned sifaka
* Crowned sifaka
* Red ruffed lemur
* Black-and-white ruffed lemur
Subspecies
* Southern black-and-white ruffed lemur
* Northern black-and-white ruffed lemur
* Pied black-and-white ruffed lemur

### Tarsiers

Species
* Siau Island tarsier
Subspecies
* Natuna Islands tarsier

### Old World monkeys

Species
* Celebes crested macaque
* Pagai Island macaque
* Niger Delta red colobus
* Preuss's red colobus
* Miss Waldron's red colobus (possibly extinct)
* Sarawak surili
* Red-shanked douc
* Gray-shanked douc
* Black-shanked douc
* Tonkin snub-nosed monkey
* Myanmar snub-nosed monkey
* Pig-tailed langur
* Delacour's langur
* Cat Ba langur
* White-headed langur
* Popa langur
Subspecies
* Zammarano's monkey
* Presbytis chrysomelas chrysomelas
* Tricolored langur
* Golden-bellied Mentawai Island langur
* Western purple-faced langur
* Pagai Island pig-tailed snub-nosed monkey
* Siberut Island pig-tailed snub-nosed monkey
* Natuna Islands silvery lutung

### New World monkeys

Species
* Brown spider monkey
* Northern muriqui
* Blond titi monkey
* Caquetá titi
* Rio Mayo titi
* Ecuadorian white-fronted capuchin
* Kaapori capuchin
* Ursine colobus
* Colombian woolly monkey
* Yellow-tailed woolly monkey
* Cotton-top tamarin
* Golden-bellied capuchin
Subspecies
* Northern brown howler
* Mexican howler
* Azuero howler
* Brown-headed spider monkey
* Colombian spider monkey
* Azuero spider monkey
* Nicaraguan spider monkey
* Mexican spider monkey
* Ateles hybridus brunneus
* Hybrid spider monkey
* Margarita Island capuchin

### Lorisoidea

* Javan slow loris

## Odd-toed ungulates

Species
* Sumatran rhinoceros
* Black rhinoceros
** Eastern black rhinoceros
** South-central black rhinoceros
* African wild donkey
* Javan rhinoceros
Subspecies
* Northern white rhinoceros (possibly extinct in the wild)

## Cetartiodactyls

Cetartiodactyla includes dolphins, whales and even-toed ungulates. There are 15 species, nine subspecies, and nine subpopulations of cetartiodactyl assessed as critically endangered.

### Non-cetacean even-toed ungulates

Species
* Addax
* Bawean deer
* Hirola
* Kouprey (possibly extinct)
* Tamaraw
* Wild Bactrian camel
* Giant muntjac
* Dama gazelle
* Saola
* Visayan warty pig
Subspecies
* Tora hartebeest
* Giant sable antelope
* Upemba lechwe
* Russian saiga
* Western giant eland
* Mountain bongo
* Kordofan giraffe
* Nubian giraffe

### Cetaceans

Species
* Baiji (possibly extinct)
* Vaquita
* Rice's whale
* North Atlantic right whale
* Atlantic humpback dolphin
Subspecies
* Popoto
* Yangtze finless porpoise
Subpopulations
* Bowhead whale (1 subpopulation)
* Beluga whale (1 subpopulation)
* Gray whale (1 subpopulation)
* North Pacific right whale (1 subpopulation)
* Irrawaddy dolphin (5 subpopulations)
* Harbour porpoise (1 subpopulation)
* Indo-Pacific humpbacked dolphin (1 subpopulation)
* Common bottlenose dolphin (1 subpopulation)

## Marsupials

* Talaud bear cuscus
* Woylie
* Mountain pygmy possum
* Wondiwoi tree-kangaroo
* Golden-mantled tree-kangaroo
* Tenkile
* Black dorcopsis
* Leadbeater's possum
* Northern hairy-nosed wombat
* Handley's slender opossum
* One-striped opossum (possibly extinct)
* Northern glider
* Telefomin cuscus
* Gilbert's potoroo
* Kangaroo Island dunnart
* Black-spotted cuscus
* Blue-eyed spotted cuscus

## Carnivora

Species
* Red wolf
* European mink
* Cozumel raccoon
* Malabar large-spotted civet
Subspecies
* Northwest African cheetah
* Asiatic cheetah
* Balkan lynx
* South China tiger
* Malayan tiger
* Sunda Island tiger
** Sumatran tiger
* Indochinese leopard
* Arabian leopard
* Amur leopard
* Anatolian leopard
* Iriomote cat
Subpopulations
* African wild dog (2 subpopulations)
* Lion (1 subpopulation)
* Anatolian leopard
** Persian leopard (several subpopulations)

## Eulipotyphla

* Phillips' Congo shrew
* Andaman shrew
* Harenna shrew
* Jenkins' shrew
* Nicobar shrew
* Christmas Island shrew (possibly extinct)
* Wimmer's shrew
* Nelson's small-eared shrew
* Eisentraut's mouse shrew
* Sclater's shrew
* San Cristobal shrew
* Russian desman

## Lagomorpha

Rabbits and relatives
* Riverine rabbit
* San Jose brush rabbit

## Rodents

There are 58 species and one subspecies of rodent assessed as critically endangered.

### Hystricomorpha

("Porcupine-like")
* Bolivian chinchilla rat
* Garrido's hutia (possibly extinct)
* Santa Catarina's guinea pig
* Reig's tuco-tuco
* Roig's tuco-tuco
* Social tuco-tuco
* Mexican agouti
* Dwarf hutia (possibly extinct)
* San Felipe hutia (possibly extinct)
* Pacific degu
* Mantiqueira Atlantic tree-rat
* Short-furred Atlantic tree-rat
* Red-crested tree rat
* Golden vizcacha rat
* Chalchalero viscacha rat

### Myomorpha

There are 37 species in Myomorpha assessed as critically endangered.

#### Murids

Includes mice, rats, gerbils, and relatives.
* Elvira rat
* Dahl's jird
* Ethiopian amphibious rat (possibly extinct)
* Poncelet's giant rat
* Muennink's spiny rat
* Biak giant rat
* Emma's giant rat
* Emperor rat (possibly extinct)
* Guadalcanal rat (possibly extinct)
* Carpentarian rock rat
* Central rock rat

#### Cricetids

Includes true hamsters, voles, lemmings, and New World rats and mice.
* European hamster
* Chinanteco deer mouse
* Delicate deer mouse
* Ixtlán deer mouse
* Zempoaltepec deer mouse
* Habromys schmidlyi
* Zuniga's dark rice rat (possibly extinct)
* Bavarian pine vole
* Nelson's woodrat
* Perote mouse
* Burt's deer mouse
* Dickey's deer mouse
* Angel Island mouse (possibly extinct)
* San Lorenzo mouse
* Maya mouse
* Puebla deer mouse
* False canyon mouse
* Catalina deer mouse
* San Esteban Island mouse
* Cozumel harvest mouse
* Chiapan climbing rat (possibly extinct)
* Tumbala climbing rat

#### Nesomyids

* Mount Kahuzi climbing mouse

### Castorimorpha

("Beaver-like")
Species
* San Quintin kangaroo rat
* Tropical pocket gopher
* Big pocket gopher
Subspecies
* Alcorn's pocket gopher

### Sciuromorpha

* Namdapha flying squirrel
* Vancouver Island marmot

## Bats

* Bulmer's fruit bat (Aproteles bulmerae)
* Seychelles sheath-tailed bat (Coleura seychellensis)
* Philippine naked-backed fruit bat (Dobsonia chapmani)
* Thongaree's disc-nosed bat (Eudiscoderma thongareeae)
* Kolar leaf-nosed bat (Hipposideros hypophyllus)
* Lamotte's roundleaf bat (Hipposideros lamottei)
* Fijian monkey-faced bat (Mirimiri acrodonta)
* Bala tube-nosed bat (Murina balaensis)
* Gloomy tube-nosed bat (Murina tenebrosa) (possibly extinct)
* Armenian whiskered bat (Myotis hajastanicus)
* Yanbaru whiskered bat (Myotis yanbarensis)
* New Zealand greater short-tailed bat (Mystacina robusta) (possibly extinct)
* Jamaican greater funnel-eared bat (Natalus jamaicensis)
* New Caledonian long-eared bat (Nyctophilus nebulosus)
* New Guinea big-eared bat (Pharotis imogene) (possibly extinct)
* Jamaican flower bat (Phyllonycteris aphylla)
* Canary long-eared bat (Plecotus teneriffae)
* Sardinian long-eared bat (Plecotus sardus)
* Greater monkey-faced bat (Pteralopex flanneryi)
* Montane monkey-faced bat (Pteralopex pulchra) (possibly extinct)
* Aru flying fox (Pteropus aruensis) (possibly extinct)
* Livingstone's fruit bat (Pteropus livingstonii)
* Vanikoro flying fox (Pteropus tuberculatus)
* Hill's horseshoe bat (Rhinolophus hilli)

## Other mammals

Species
* African forest elephant
* Pygmy three-toed sloth
* De Winton's golden mole
* Sunda pangolin
* Chinese pangolin
* Attenborough's long-beaked echidna
* Western long-beaked echidna
Subspecies
* Sumatran elephant
Subpopulations
* Juliana's golden mole (1 subpopulation)