As of December 2021, the

International Union for Conservation of Nature The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of natu ...

(IUCN) lists 673 critically endangered

amphibia Amphibians are four-limbed and ectothermic vertebrates of the class Amphibia. All living amphibians belong to the group Lissamphibia. They inhabit a wide variety of habitats, with most species living within terrestrial, fossorial, arbore ...

n species, including 146 which are tagged as ''possibly extinct''. 9.2% of all evaluated amphibian species are listed as critically endangered. No subpopulations of amphibians have been evaluated by the IUCN. Additionally, 1193 amphibian species (16.4% of those evaluated) are listed as ''

data deficient A data deficient (DD) species is one which has been categorized by the International Union for Conservation of Nature (IUCN) as offering insufficient information for a proper assessment of conservation status to be made. This does not necessaril ...

'', 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 amphibian species evaluated by the IUCN. Species considered possibly extinct by the IUCN are marked as such.

Salamanders

There are 121 salamander species assessed as critically endangered.

Giant salamanders The Cryptobranchidae are a family of fully aquatic salamanders commonly known as the giant salamanders. They include the largest living amphibians. The family is native to China, Japan, and the eastern United States. They constitute one of two l ...

* Chinese giant salamander (''Andrias davidianus'')

Lungless salamanders

Asiatic salamanders Asiatic refers to something related to Asia. Asiatic may also refer to: * Asiatic style, a term in ancient stylistic criticism associated with Greek writers of Asia Minor * In the context of Ancient Egypt, beyond the borders of Egypt and the cont ...

Mole salamanders

Salamandrids

Frogs

There are 549 frog species assessed as critically endangered.

True toads A true toad is any member of the family Bufonidae, in the order Anura (frogs and toads). This is the only family of anurans in which all members are known as toads, although some may be called frogs (such as harlequin frogs). The bufonids now ...

Fleshbelly frogs

Glass frogs The glass frogs belong to the amphibian family Centrolenidae ( order Anura). While the general background coloration of most glass frogs is primarily lime green, the abdominal skin of some members of this family is transparent and translucent, ...

Litter frogs

Screeching frogs

Poison dart frogs Poison dart frog (also known as dart-poison frog, poison frog or formerly known as poison arrow frog) is the common name of a group of frogs in the family Dendrobatidae which are native to tropical Central and South America. These species are ...

Mantellids

Narrow-mouthed frogs

True frogs True frogs is the common name for the frog family Ranidae. They have the widest distribution of any frog family. They are abundant throughout most of the world, occurring on all continents except Antarctica. The true frogs are present in North Am ...

Other frog species

Gynmophiona

There are 3 caecilian species assessed as critically endangered.

References

{{bots, deny=BG19bot,Yobot *Amphibians * Critically endangered amphibians Critically endangered amphibians

Salamanders

Giant salamanders The Cryptobranchidae are a family of fully aquatic salamanders commonly known as the giant salamanders. They include the largest living amphibians. The family is native to China, Japan, and the eastern United States. They constitute one of two l ...

Lungless salamanders

Asiatic salamanders Asiatic refers to something related to Asia. Asiatic may also refer to: * Asiatic style, a term in ancient stylistic criticism associated with Greek writers of Asia Minor * In the context of Ancient Egypt, beyond the borders of Egypt and the cont ...

Mole salamanders

Salamandrids

Frogs

Water frogs

Robber frogs

Shrub frogs

Cryptic forest frogs

Rain frogs