Picture of a yak, which begins with the letter y

Animals that Start with Y (Full List)

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It may be the penultimate letter of the alphabet but, that does not mean the letter “Y” does not start the name of plenty of creatures in the world. So, what animals start with “Y”?

From mammals to reptiles and beyond, you may be surprised to learn just how many animals with “Y” at the start of their name. And you may not be surprised to find that a lot of them are yellow. Read on to learn about some animals that start with Y. 


If you are looking to learn more about an animal with “Y” at the beginning of its name, you will have no shortage of options. From the tiny Yellow-necked field mouse to the large Yak, the letter covers animals of all shapes and sizes. 

  • Yak (Bos grunniens)
  • Yellow ground squirrel (Spermophilus fulvus)
  • Yellow mongoose (Cynictis penicillata)
  • Yellow-backed duiker (Cephalophus silvicultor)
  • Yellow-bellied marmot (Marmota flaviventris)
  • Yellow-bellied weasel (Mustela kathiah)
  • Yellow-footed antechinus (Antechinus flavipes)
  • Yellow-footed rock wallaby (Petrogale xanthopus)
  • Yellow-necked field mouse (Apodemus flavicollis)
  • Yellow-nosed cotton rat (Sigmodon ochrognathus)
  • Yellow-pine chipmunk (Neotamias amoenus)
  • Yellow-throated marten (Martes flavigula)
  • Yellow-winged bat (Lavia frons) (learn more about how to identify bat poop in our guide on the subject)
  • Yucatan squirrel (Sciurus yucatanensis) (learn more about how to identify squirrel poop in our guide on the subject)
  • Yuma myotis (Myotis yumanensis) 
  • Yorkshire terrier (Canis lupus familiaris)


Birds with “Y” at the beginning of their name are not as plentiful as mammals or amphibians. However, the few that there are make a yellow statement. 

  • Yellow-eyed penguin (Megadyptes antipodes)
  • Yellow-billed hornbill (Tockus leucomelas) 
  • Yellowhammer (Emberiza citrinella)


From the slithery Yellow anaconda to the toothy Yacare caiman, reptiles with the second to the last letter at the front of their name live all around the world in all kinds of environments.

  • Yacare caiman (Caiman yacare)
  • Yarara (Bothrops alternatus)
  • Yellow anaconda (Eunectes notaeus)
  • Yellow cobra (Naja nivea)
  • Yellow-spotted lizard (Lepidophyma flavimaculatum)
  • Yellow-bellied sea snake (Hydrophis platurus) (learn more about how to identify snake poop in our guide on the subject)


The letter “Y” features prominently at the beginning of the name of several amphibians. Part of this surprising frequency is the number of amphibians that are yellow or have yellow body parts. Careful getting close to any yellow amphibians since brightly colored creatures can often be poisonous. 

  • Yellow bromeliad frog (Osteopilus marianae)
  • Yellow mantella (Mantella aurantiaca)
  • Yellow-branded poison frog (Dendrobates leucomelas)
  • Yellow-bellied poison frog (Dendrobates fulguritus)
  • Yellow-bellied toad (Bombina variegata) 
  • Yellow-spotted salamander (Ambystoma maculatum)
  • Yenyuan stream salamander (Batrachuperus yenyuanensis)
  • Yellow striped poison frog (Dendrobates truncatus)
  • Yellow-throated frog (Mannophryne trinitatis)
  • Yonahlossee salamander (Plethodon yonahlossee)
  • Yosemite toad (Anaxyrus canorus)
  • Yunnan lake newt (Cynops wolterstorffi)


Fish make up another group with a lot of yellow in their appearance. You may recognize some of these fish from your favorite menu and aquarium. 

  • Yellow Banded Moenkhausia (Moenkhausia sanctaefilomenae)
  • Yellow Bass (Morone mississippiensis)
  • Yellowfin Tuna (Thunnus albacares) (help protect your pooch by finding out if dogs can eat tuna in our guide on the topic)
  • Yellowhead Jawfish (Opistognathus aurifrons)
  • Yellowmargin Triggerfish (Pseudobalistes flavimarginatus)
  • Yellow Julie (Julidochromis ornatus)
  • Yellow King Piranha (Serrasalmus ternetzi)
  • Yellow Kribensis (Pelvicachromis humilis)
  • Yellow Lab (Labidochromis caeruleus)
  • Yellow Perch (Perca flavescens)
  • Yellow-Finned Xenotilapia (Xenotilapia flavipinnis)
  • Yellow-Tailed Violet Cichlid (Gephyrochromis moorii)
  • Yellow-Tetra (Hyphessobrycon bifasciatus)
  • Yellow edge Grouper (Hyporthodus flavolimbatus)
  • Yellowfin Cutthroat Trout (Oncorhynchus clarkii macdonaldi)
  • Yellowtail Catfish (Pangasius pangasius)
  • Yellowtail Amberjack (Seriola lalandi)
  • Yellowtail Barracuda (Sphyraena flavicauda)
  • Yellowtail Clownfish (Amphiprion clarkii)
  • Yellowtail Horse Mackerel (Trachurus novaezelandiae)
  • Yellowtail Snapper (Ocyurus chrysurus)


Both insects and arachnids can have the letter “Y” at the beginning of their names. 

  • Yellow ant (Anoplolepis gracilipes) (learn more about what ants eat in our guide on the topic)
  • Yellow jacket wasp (Vespula spp.)
  • Yellow Sac Spider (Cheiracanthium inclusum)
  • Yellow-winged grasshopper (Gastrimargus musicus)

Learn more about the animals that begin with other letters in our series of posts on the subject:

Pet News Daily Staff
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