List of critically endangered amphibians

As of December 2025, the International Union for Conservation of Nature (IUCN) lists 825 critically endangered amphibian species, including 187 which are tagged as possibly extinct.^[1][2] 10.2% of all evaluated amphibian species are listed as critically endangered.

•   Extinct in the wild (EW): 2 species
•   Critically endangered (CR): 825 species
•   Endangered (EN): 1,291 species
•   Vulnerable (VU): 815 species
•   Near threatened (NT): 453 species
•   Least concern (LC): 3,733 species
•   Data deficient (DD): 896 species

Amphibian species (IUCN, 2025-2)

• 8052 extant species have been evaluated
• 7156 of those are fully assessed^[a]
• 4186 are not threatened at present^[b]
• 2931 to 3827 are threatened^[c]
• 35 to 148 are extinct or extinct in the wild:
  • 37 extinct (EX) species^[d]
  • 2 extinct in the wild (EW)

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1. [a]

   excludes data deficient evaluations.
2. [b]

   NT and LC.
3. [c]

   Threatened comprises CR, EN and VU. Upper estimate additionally includes DD.
4. [d]

   Chart omits extinct (EX) species

Additionally, 896 amphibian species (11.1% 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.^[3] 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."^[4]

This is a complete list of critically endangered amphibian species evaluated by the IUCN, last substantially updated January 2022. Species considered possibly extinct by the IUCN are marked as such.