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There’s a short list that my favourite animals that start with o. But that’s simply the beginning! We’ve compiled the greatest list ever before of more than 700 pets beginning through O!

Our list offers only common names due to the fact that scientific name are most likely not what you’re in search of (and very challenging to pronounce). I’ve only contained wild animals(no pet each other or domesticated animals). This list concentrates on vertebrate animals(mammals, birds, reptiles, amphibians, & fish) but also includes a bunch the invertebrate pets at the end, favor the Octopus!




You are watching: Animals that begin with the letter o

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Opossum! one of our favorite animals beginning with O!


One interesting thing to allude out around animals that start with o: if the weren’t because that the colors ochre, olive, and also orange, us would lose 66% that the bird on ours list!

What room some animals that start with O?

Orca (Killer whale)Ocelot (small spotted cat)Octopus (most smart invertebrate)Orangutan (great ape)Okapi (closest loved one to the giraffe)Owl (nocturnal bird of prey)Olm (cave salamander)Olingo (tropical member the raccoon family)Osprey (fish-eating bird of prey)Otter (aquatic mammal)Oarfish (longest bony fish, deep sea)Onager (Asiatic wild ass)Oriole (colorful songbird)Oribi (small antelope)Oxpecker (hitchhiking bird in Africa)Oyster (bivalve mollusk)Omao (endemic Hawaiian songbird)Oystercatcher (wading bird that eats shellfish)Oilbird (nocturnal fruit-eating bird)Oropendola (large tropical perching bird)Ovenbird (North American warbler)


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One of mine favorite pets That start With O: the octopus!


How Many animals That begin With O are on our list?

67 Mammals222 Birds31 Reptiles29 Amphibians301 Fish71 Invertebrates= 721 animals That start With the Letter O!

If you want more information around any of this animals starting with o, you have the right to highlight a name in the list and also then right click it in her browser. Select “Search through Google” and also check the results. Several of my favorite info sources are the IUCN Redlist, Arkive, Fishbase, the Cornell rap of Ornithology, Encyclopedia that Life, & One Zoom.

Related: pets That begin With N: an illustrated Guide

I invested over a week making every these cool illustrations of animals that start with n for this reason please examine it out!

ANIMALS THAT start WITH O

Mammals: 67 pets That start With O


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Animals beginning with o: Orangutan


OcelotOkapiOlingoOnagerOpossumOrangutanOrcaOribiOryxOtterOxO’Connell’s spiny ratOaxaca giant deer mouseOaxacan pocket gopherObi island cuscusObi mosaic-tailed ratOccidental gerbilOchre bush squirrelOchre mole ratOgilby’s duikerOgilvie mountain collared lemmingOhiya ratOku mouse shrewOlalla’s titiOldfield mouseOldfield mouseOldfield white-bellied ratOlga’s dormouseOlive baboonOlive colobusOlive grass mouseOlive montane mouseOlive-backed bag mouseOlivier’s shrewOlrog’s chaco mouseOlympic marmotOmilteme cottontailOne-striped short-tailed opossumOne-toothed shrew mouseOntong Java paris foxOoldea dunnartOpossum ratOrange fruit batOrange leaf-nosed batOrange mouseOrange nectar batOrange-bellied Himalayan squirrelOrange-spined hairy dwarf porcupineOrd’s kangaroo ratOriental small-clawed otterOriente cave ratOrinoco agoutiOrinoco sword-nosed batOrnate flying foxOrnate shrewOsgood’s horseshoe batOsgood’s leaf-eared mouseOsgood’s mouseOsgood’s ratOsgood’s short-tailed opossumOtter civetOubangui mouseOwl’s spiny ratOwl-faced monkeyOwston’s palm civetOyapock’s fish-eating ratOzark big-eared-bat

Birds: 222 animals Beginning v O


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Animals start with O: Owl


OilbirdOmaoOrangequitOrioleOspreyOstrichOvenbirdOwlOxpeckerOystercatcherOahu AmakihiOahu OoOasis HummingbirdOaxaca HummingbirdOaxaca SparrowObbia LarkOberlaender’s Ground-ThrushObi WoodcockObscure BerrypeckerObscure HoneyeaterOcellated AntbirdOcellated CrakeOcellated PoorwillOcellated QuailOcellated TapaculoOcellated ThrasherOcellated TurkeyOcellated WoodcreeperOchraceous AttilaOchraceous BulbulOchraceous PeweeOchraceous PiculetOchraceous WrenOchraceous-breasted FlycatcherOchre-bellied FlycatcherOchre-bellied Hawk-OwlOchre-breasted AntpittaOchre-breasted Brush FinchOchre-breasted PipitOchre-breasted SpinetailOchre-breasted TanagerOchre-browed ThistletailOchre-cheeked SpinetailOchre-collared PiculetOchre-faced Tody-FlycatcherOchre-flanked TapaculoOchre-fronted AntpittaOchre-marked parakeetOchre-naped soil TyrantOchre-rumped AntbirdOchre-striped AntpittaOgea FlycatcherOkinawa RailOld human being BabblerOleaginous HemispingusOlivaceous AlseonaxOlivaceous ElaeniaOlivaceous FlatbillOlivaceous GreenletOlivaceous PiculetOlivaceous PihaOlivaceous SiskinOlivaceous ThornbillOlivaceous ThrushOlivaceous WarblerOlivaceous WoodcreeperOlive BulbulOlive FlycatcherOlive FlyrobinOlive HoneyeaterOlive IbisOlive Long-tailed CuckooOlive ManakinOlive SparrowOlive SpinetailOlive StraightbillOlive SunbirdOlive ThrushOlive warblerOlive WhistlerOlive-backed EuphoniaOlive-backed FlowerpeckerOlive-backed Foliage-gleanerOlive-backed OrioleOlive-backed Quail DoveOlive-backed SunbirdOlive-backed TanagerOlive-backed WoodcreeperOlive-backed WoodpeckerOlive-bellied SunbirdOlive-brown BulbulOlive-brown OrioleOlive-capped FlowerpeckerOlive-capped WarblerOlive-chested FlycatcherOlive-crowned CrescentchestOlive-crowned FlowerpeckerOlive-crowned YellowthroatOlive-flanked Robin-ChatOlive-flanked WhistlerOlive-green CamaropteraOlive-green TanagerOlive-green TyrannuletOlive-headed Brush FinchOlive-headed LorikeetOlive-headed WeaverOlive-rumped SerinOlive-sided flycatcherOlive-spotted HummingbirdOlive-streaked HoneyeaterOlive-striped FlycatcherOlive-tree WarblerOlive-yellow MyzomelaOlive-yellow RobinOlrog’s CinclodesOlrog’s GullOne-coloured BecardOpal-crowned ManakinOpal-crowned TanagerOpal-rumped TanagerOpenbill storkOrange BishopOrange BullfinchOrange ChatOrange DoveOrange floor ThrushOrange OrioleOrange WeaverOrange-backed TroupialOrange-backed WoodpeckerOrange-banded FlycatcherOrange-banded ThrushOrange-barred willow WarblerOrange-bellied AntwrenOrange-bellied EuphoniaOrange-bellied FlowerpeckerOrange-bellied Fruit DoveOrange-bellied LeafbirdOrange-bellied manakinOrange-bellied parakeetOrange-bellied TrogonOrange-billed BabblerOrange-billed Nightingale-ThrushOrange-billed SparrowOrange-breasted BuntingOrange-breasted BushshrikeOrange-breasted FalconOrange-breasted Fig ParrotOrange-breasted FruiteaterOrange-breasted green PigeonOrange-breasted HoneyeaterOrange-breasted RockjumperOrange-breasted SunbirdOrange-breasted TrogonOrange-browed HemispingusOrange-cheeked HoneyeaterOrange-cheeked WaxbillOrange-chinned ParakeetOrange-collared ManakinOrange-crested FlycatcherOrange-crested ManakinOrange-crowned EuphoniaOrange-crowned OrioleOrange-crowned WarblerOrange-eared TanagerOrange-eyed flycatcherOrange-flanked Bush-RobinOrange-footed Scrub FowlOrange-fronted BarbetOrange-fronted Fruit DoveOrange-fronted Hanging-ParrotOrange-fronted ParakeetOrange-fronted PlushcrownOrange-fronted Yellow FinchOrange-gorgetted FlycatcherOrange-headed TanagerOrange-headed ThrushOrange-spotted BulbulOrange-throated SunangelOrange-throated TanagerOrange-tufted SunbirdOrange-winged AmazonOrange-winged PytiliaOrangeriver FrancolinOrchard OrioleOriental Bay-OwlOriental CuckooOriental Dwarf KingfisherOriental goldfinchOriental HobbyOriental Honey-buzzardOriental Magpie-RobinOriental Pied-HornbillOriental PipitOriental PloverOriental PratincoleOriental Scops OwlOriental tortoise DoveOriental white storkOriental White-eyeOriental white-backed vultureOriente WarblerOrinocan SaltatorOrinoco GooseOrinoco PiculetOrinoco SofttailOriole BlackbirdOriole FinchOriole WarblerOrnate FlycatcherOrnate Fruit DoveOrnate Hawk-EagleOrnate LorikeetOrnate MelidectesOrnate TinamouOropendolaOrphean WarblerOrtolan BuntingOustalet’s TyrannuletOustalet’s White-bellied SunbirdOuvea ParakeetOvambo Sparrowhawk

Reptiles: 31 animals Beginning through O


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Animals that start with the letter O: Olive Ridley Turtle


O’shaughnessy’s Keeled IguanaOaxacan Cat-Eyed SnakeOaxacan Coral SnakeOaxacan Dwarf BoaOaxacan Graceful Brown SnakeOaxacan Leaf-toed GeckoOaxacan mud TurtleOaxacan Patchnose SnakeOaxacan spiny-tailed iguanaOcellated day GeckoOgilby’s Knobtail GeckoOkavango mud turtleOkinawa Black-breasted leaf TurtleOlive Ridley TurtleOliver’s new Zealand SkinkOlive Sea SnakeOlmecan Pit ViperOphisaurus ceroniOphisops occidentalisOphryacus melanurusOpisthotropis kikuzatoiOrinoco crocodileOrnamental SnakeOrnate crate turtleOrnate DragonOrnate ground SnakeOrnate sliderOrnate Spiny LizardOrsini’s ViperOta’s wolf SnakeOtago skink

Amphibians: 29 animals that start With the Letter O

OlmOak ToadOcoee salamanderOdaigahara salamanderOita salamanderOki salamanderOklahoma salamanderOlive Snout-burrowerOlongburra frogOlympic salamanderOmei horned toadOne-toed amphiumaOrange-bellied frogOrange-crowned ToadletOrange-thighed FrogOregon slender salamanderOregon Spotted FrogOriental Bell ToadOriental Fire-bellied NewtOrlov’s TreefrogOrnamented Pygmy FrogOrnate Burrowing FrogOrnate Chorus FrogOrnate FrogOrnate horned frogOshan Metacarpal-tubercled ToadOuachita dusky salamanderOxapampa poison FrogOzark Zigzag Salamander

Fish: 301 pets That begin With O




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OarfishOl’wifeOpahOpaleyeOpalfishOtunoOaxaca cichlidOaxaca killifishOaxaca livebearerObbes’ catfishOblique banded rattailOblique butterflyfishOblique-banded cardinalfishOblique-banded rockcodOblique-lined dottybackOblique-swimming triplefinObliquebanded stingfishOblong slipmouthObscure damselObscure flatheadObscure gobyObscure ruffObscure triplefinObtuse barracudaObtuse sandfishOccidental blennyOcean bassOcean poutOcean sunfishOcean triggerfishOcean whitefishOceanic anchovyOceanic lightfishOceanic whitetip sharkOcellate duckbillOcellate skateOcellate soapfishOcellate spot skateOcellate triplefinOcellated point of view sharkOcellated blennyOcellated cardinalfishOcellated damselOcellated dragonetOcellated electrical rayOcellated flounderOcellated frogfishOcellated icefishOcellated killifishOcellated labyrinth fishOcellated pipefishOcellated rivulusOcellated sand-eelOcellated scorpionfishOcellated soleOcellated spiny eelOcellated tonguefishOcellated turbotOcellated wedge soleOcellated wrasseOchre-striped cardinalfishOchrebanded goatfishOcmulgee shinerOcre-band wrasseOcular blennyOda’s skateOdd highhatOffshore lizardfishOffshore pipefishOffshore ponyfishOffshore rockfishOffshore silver- hakeOffshore tonguefishOgasawara gurnard perchOgasawara shrimp-gobyOgilby’s hardyheadOgilby’s rainbowfishOgilby’s spiny flatheadOgilbys wobbegongOhio lampreyOhrid troutOily bitterlingOkaloosa darterOkapi gobyOkavango suckermouthOkavango tilapiaOkefenokee pygmy sunfishOkhotsk hookear sculpinOkhotsk skateOkhotsk snailfishOkinawa chromisOkinawa flap-headed gobyOkinawa gobyOkinawa rubble gobyOktedi rainbowfishOld womanOldman klipfishOlivaceous wormfishOlive damselfishOlive darterOlive flathead-gudgeonOlive grouperOlive gruntOlive Kivu haploOlive rockfishOlive skiffiaOlive wide-eyed flounderOlive-backed rockfishOlive-spotted monocle-breamOlivegreen ufipa barbOlmec blind catfishOlmec priapellaOlympic mudminnowOman anemonefishOman blennyOman bullhead sharkOman butterflyfishOman cardinalfishOman cownose rayOman gobyOman gurnardOman jawfishOman morayOman porgyOman snake eelOmo lampeyeOmox blennyOne clues demoiselleOne spot seabreamOne-and-a-half-stripe hapOne-eyed blennyOne-eyed soleOne-finned sharkOne-spot morayOne-stripe anthiasOne-stripe fusilierOne-striped fangblennyOneband anemonefishOnefin cat sharkOnefin skateOnegilled eelOneknife unicornfishOneline pencilfishOnesided livebearerOnespot barbOnespot demoiselleOnespot fringeheadOnespot gobyOnespot squeakerOnespot triplefinOnespot wormfishOnestick stingfishOnestripe eelOnestripe wormfishOnestriped poison fang blennyOnrust klipfishOpal allotocaOpal pearlfishOpata suckerOpossum pipefishOrange brotulaOrange clingfishOrange clinidOrange clownfishOrange dottybackOrange filefishOrange fin emperorOrange flagfishOrange goatfishOrange notothenOrange perchOrange pipefishOrange reef-gobyOrange river mudfishOrange rockcodOrange roughyOrange scorpionfishOrange line eelOrange tail Kivu haploOrange wrasseOrange-back wrasseOrange-black dragonetOrange-dotted tuskfishOrange-fin fileOrange-freckled flatheadOrange-fringed largemouthOrange-lined reef bassletOrange-lined triggerfishOrange-red pigmy grouperOrange-socket surgeonfishOrange-speckled pygmy-gobyOrange-spotted gobyOrange-spotted sand perchOrange-spotted sand-gobyOrange-spotted shrimp-gobyOrange-spotted spinefootOrange-spotted theraponOrange-spotted toadfishOrange-stripe emperorOrange-striped gobyOrange-striped pygmy bassletOrange-striped wrasseOrangeback angelfishOrangeback bassOrangebanded gurnard perchOrangebanded stingfishOrangebar anthiasOrangebelly darterOrangebelly gobyOrangedotted blennyOrangeface angelfishOrangefin barbOrangefin darterOrangefin madtomOrangefin ponyfishOrangefin shinerOrangefin tetraOrangeflag blennyOrangehead anthiasOrangehead worm-eelOrangelined cardinalfishOrangemouth lizardfishOrangemouth weakfishOrangeside gobyOrangeside triggerfishOrangespine unicornfishOrangespotted blennyOrangespotted gobyOrangespotted soapfishOrangespotted sunfishOrangespotted trevallyOrangestriped squeakerOrangetail filefishOrangetail shinerOrangethroat darterOrangethroat pikeblennyOrbicular batfishOrbiculate cardinalfishOrbiculate spade fishOrchid dottybackOrdinary eelOrdway’s brotulaOregon chubOriental butterflyfishOriental flying gurnardOriental maori wrasseOriental sillagoOriental sweetlipsOriental weatherfishOriental worm-eelOrinoco eartheaterOrkney charrOrnamented flyingfishOrnamented wrasseOrnate angelfishOrnate bagridOrnate bichirOrnate butterflyfishOrnate cowfishOrnate ctenopomaOrnate dogfishOrnate eagle rayOrnate emperorOrnate gobyOrnate limiaOrnate pipefishOrnate prawn-gobyOrnate rainbowfishOrnate shinerOrnate sleeper-rayOrnate line EelOrnate stargazerOrnate tetraOstrich gobyOtjikoto tilapiaOuachita madtomOuachita hill shinerOuter-reef damselOuwen’s gobyOval damselfishOval electrical rayOval flounderOvate chromisOvate soleOvoid toothponyOwens pupfishOwens suckerOxeye oreoOxeye scadOxleyan pygmy perchOyapock eartheaterOyster blennyOyster pearlfishOyster pompanoOyster toadfishOzark bassOzark cavefishOzark chubOzark logperchOzark madtomOzark minnowOzark sculpinOzark shiner

Invertebrates: 71 Invertebrate pets & Insects That begin With O