|This is an overview article which contains background information and cross-game comparisons. For game-specific information and stats, see the articles linked on the right.|
Yao guai are a species of mutated black bears. These creatures are found in the Capital Wasteland and Zion Canyon.
Although generally found alone, yao guai exhibit a gentle, familial bond toward one another when found together, provided they do not feel threatened by the observer's presence. Yao guai will attack nearly any other animals or people they encounter, including deathclaws. However, yao guai have been known to be occasionally friendly towards bloatflies. There are tamed yao guai which can be seen following and protecting their masters in the Capital Wasteland. Yao guai are very dangerous and attack quickly.
 Yao guai
An adult yao guai.
 Scavengers' yao guai
A tamed variant of yao guai owned by scavengers, most likely for protection and companionship.
A pre-War circus bear turned yao guai found in Point Lookout.
 Yao guai cub
A younger specimen of the mutant bear.
 Giant yao guai
Larger versions of yao guai.
 Ghost of She
A unique and mythical yao guai which can be found in Zion Canyon. It has a flaming body and a giant size, and can create several doppelgangers of itself.
 Behind the scenes
- In Chinese, yao guai (妖怪) simply means "monster". In Chinese mythology, "yao guai" are physical manifestations of the spirits of mistreated animals, or fallen divine animals.
- If you kill a yao guai when it rushes towards you, it is possible the body will fly away.
|Humanoids||Ghost people (ghost harvester, ghost seeker, ghost trapper) · Ghoul (born ghoul, endless walker, feral ghoul roamer, feral ghoul reaver, glowing one, feral trooper ghoul, swamp ghoul) · Human (dwarf, lobotomite, slag) · Mariposa super mutant (super mutant master, nightkin) · Spore carrier (spore carrier savage, spore carrier brute, spore carrier runt) · Vault 87 super mutant (super mutant behemoth, super mutant brute, super mutant master, super mutant overlord) · Swampfolk · Trog · Tunneler|
|Mammals||Bighorner (bighorner bull, bighorner calf) · Brahmin · Cattle · Coyote (coyote alpha male, coyote den mother, coyote pup) · Dog (cyberdog, legion mongrel, vicious dog) · Giant rat (mole rat, pig rat) · Hairy deathclaw (baby hairy deathclaw) · Tiger · Wolf · Yao guai|
|Reptiles||Deathclaw (baby deathclaw, young deathclaw, blind deathclaw, deathclaw alpha male, mother deathclaw, talking deathclaw, legendary deathclaw) · Experimental deathclaw (baby experimental deathclaw) · Gecko (hunter gecko, fire gecko, golden gecko, little gecko) · Iguana · Komodo dragon · Lakelurk · Mirelurk king · Mutant crocodile · Swamplurk queen · Two-headed rattlesnake|
|Arthropods||Bloatfly · Boom Bug · Cazador (young cazador, legendary Cazador) · Desert Stalker · Electro-beetle · Fire ant (fire ant soldier) · Giant ant (giant albino ant, giant soldier ant, giant ant queen) · Giant wasp · Mantis (giant mantis, giant mantis nymph, giant mantis female) · Mirelurk (mirelurk hunter, nukalurk, swamplurk) · Radroach · Radbug · Radscorpion (albino radscorpion, bark scorpion, bark scorpion hunter, small radscorpion, giant radscorpion, radscorpion queen)|
|Fish and amphibians||Giant catfish · Radtoad · Fish|
|Plants||Spore plant · Venus Mantrap · Weedling|
|Abominations||Abomination · Alien · Alien squid · Alien worm · Centaur (evolved centaur) · Floater · Gehenna · Giant leech · Lamprey floater · Manowar tendril floater · Molech · Mutant cannibal · Mutant Wanamingo · Nightstalker (young night stalker, den mother, legendary night stalker)|