•   Extinct in the wild (EW): 2 species
•   Critically endangered (CR): 545 species
•   Endangered (EN): 848 species
•   Vulnerable (VU): 670 species
•   Near threatened (NT): 402 species
•   Least concern (LC): 2,458 species
•   Data deficient (DD): 1,567 species

Amphibian species (IUCN, 2016-2)

• 6492 extant species have been evaluated
• 4925 of those are fully assessed^[a]
• 2860 are not threatened at present^[b]
• 2063 to 3630 are threatened^[c]
• 35 to 148 are extinct or extinct in the wild:
  • 33 extinct (EX) species^[d]
  • 2 extinct in the wild (EW)
  • 113 possibly extinct [CR(PE)]
  • 0 possibly extinct in the wild [CR(PEW)]

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1. ^ excludes data deficient evaluations.
2. ^ NT and LC.
3. ^ Threatened comprises CR, EN and VU. Upper estimate additionally includes DD.
4. ^ Chart omits extinct (EX) species

As of September 2021, the International Union for Conservation of Nature (IUCN) lists 3160 least concern amphibian species.^[1] 38% of all evaluated amphibian species are listed as least concern. No subpopulations of amphibians have been evaluated by the IUCN.

This is a complete list of least concern amphibian species as evaluated by the IUCN.

There are 162 salamander species assessed as least concern.

True salamanders and newts

• Southern torrent salamander (Rhyacotriton variegatus)

• Two-toed amphiuma (Amphiuma means)
• Three-toed amphiuma (Amphiuma tridactylum)

There are 2244 frog species assessed as least concern.

Includes tree frog species and their allies.

• Lists of IUCN Red List least concern species
• List of near threatened amphibians
• List of vulnerable amphibians
• List of endangered amphibians
• List of critically endangered amphibians
• List of recently extinct amphibians
• List of data deficient amphibians