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This is a list of the known extant reptiles of Arizona.^[1] The Arizona state reptile is the Arizona ridge-nosed rattlesnake (Crotalus willardi willardi).^[2]

• Common snapping turtle (Chelydra serpentina) - introduced

• Painted turtle (Chrysemys picta)
• Desert box turtle (Terrapene ornata luteola)
• Red-eared slider (Trachemys scripta elegans) - introduced

• Arizona mud turtle (Kinosternon stejnegeri)
• Yellow mud turtle (Kinosternon flavescens)
• Sonora mud turtle (Kinosternon sonoriense)

• Desert tortoise (Gopherus agassizii)
• Sonoran Desert tortoise (Gopherus morafkai)

• Spiny softshell turtle (Apalone spinifera)

• Madrean alligator lizard (Elgaria kingii)

• Eastern collared lizard (Crotaphytus collaris)
• Great Basin collared lizard (Crotaphytus bicinctores)
• Sonoran collared lizard (Crotaphytus nebrius)
• Long-nosed leopard lizard (Gambelia wislizenii)

• Western banded gecko (Coleonyx variegatus)

• Mediterranean house gecko (Hemidactylus turcicus) - introduced

• Gila monster (Heloderma suspectum)

• Spiny-tailed iguana (Ctenosaura macrolopha × conspicuosa) - introduced
• Desert iguana (Dipsosaurus dorsalis)
• Common chuckwalla (Sauromalus ater)

• Zebra-tailed lizard (Callisaurus draconoides)
• Greater earless lizard (Cophosaurus texanus)
• Lesser earless lizard (Holbrookia maculata)
• Texas horned lizard (Phrynosoma cornutum)
• Greater short-horned lizard (Phrynosoma hernandesi)
• Flat-tail horned lizard (Phrynosoma mcallii)
• Desert horned lizard (Phrynosoma platyrhinos)
• Regal horned lizard (Phrynosoma solare)
• Twin-spotted spiny lizard (Sceloporus bimaculosus)
• Clark's spiny lizard (Sceloporus clarkii)
• Southwestern fence lizard (Sceloporus cowlesi)
• Yarrow's spiny lizard (Sceloporus jarrovii)
• Desert spiny lizard (Sceloporus magister)
• Slevin's bunchgrass lizard (Sceloporus slevini)
• Plateau fence lizard (Sceloporus tristichus)
• Yellow-backed spiny lizard (Sceloporus uniformis)
• Striped plateau lizard (Sceloporus virgatus)
• Mojave fringe-toed lizard (Uma scoparia)
• Long-tailed brush lizard (Urosaurus graciosus)
• Ornate tree lizard (Urosaurus ornatus)
• Common side-blotched lizard (Uta stansburiana)

• Mountain skink (Plestiodon callicephalus)
• Gilbert's skink (Plestiodon gilberti)
• Many-lined skink (Plestiodon multivirgatus)
• Western skink (Plestiodon skiltonianus)
• Great Plains skink (Plestiodon obsoletus)

• Arizona striped whiptail (Aspidoscelis arizonae)
• Canyon spotted whiptail (Aspidoscelis burti)
• Chihuahuan spotted whiptail (Aspidoscelis exsanguis)
• Gila spotted whiptail (Aspidoscelis flagellicauda)
• New Mexico whiptail (Aspidoscelis neomexicana)
• Pai striped whiptail (Aspidoscelis pai)
• Sonoran spotted whiptail (Aspidoscelis sonorae)
• Tiger whiptail (Aspidoscelis tigris)
• Desert grassland whiptail (Aspidoscelis uniparens)
• Plateau striped whiptail (Aspidoscelis velox)
• Red-backed whiptail (Aspidoscelis xanthonota)

• Arizona night lizard (Xantusia arizona)
• Bezy's night lizard (Xantusia bezyi)
• Desert night lizard (Xantusia vigilis)

• Desert rosy boa (Lichanura trivirgata)

• Glossy snake (Arizona elegans)
• Variable sandsnake (Sonora stramineus)
• Western shovelnose snake (Sonora occipitalis)
• Groundsnake (Sonora semiannulata)
• Sonoran shovel-nosed snake (Sonora palarostris)
• North American racer (Coluber constrictor)
• Coachwhip (Masticophis flagellum)
• Striped whipsnake (Masticophis taeniatus)
• Ring-necked snake (Diadophis punctatus)
• Chihuahuan hook-nosed snake (Gyalopion canum)
• Thornscrub hook-nosed snake (Gyalopion quadrangulare)
• Mexican hog-nosed snake (Heterodon kennerlyi)
• Desert nightsnake (Hypsiglena chlorophaea)
• Chihuahuan nightsnake (Hypsiglena jani)
• Common kingsnake (Lampropeltis getula)
• Sonoran mountain kingsnake (Lampropeltis pyromelana)
• Milk snake (Lampropeltis triangulum)
• Brown vinesnake (Oxybelis aeneus)
• Saddled leaf-nosed snake (Phyllorhynchus browni)
• Spotted leaf-nosed snake (Phyllorhynchus decurtatus)
• Gopher snake (Pituophis catenifer)
• Long-nosed snake (Rhinocheilus lecontei)
• Western patch-nosed snake (Salvadora hexalepis
• Eastern patch-nosed snake (Salvadora grahamiae)
• Green ratsnake (Senticolis triaspis)
• Sonoran lyresnake (Trimorphodon lambda)
• Smith's black-headed snake (Tantilla hobartsmithi)
• Plains black-headed snake (Tantilla nigriceps)
• Chihuahuan black-headed snake (Tantilla wilcoxi)
• Yaqui black-headed snake (Tantilla yaquia)
• Blackneck garter snake (Thamnophis cyrtopsis)
• Western terrestrial garter snake (Thamnophis elegans)
• Mexican garter snake (Thamnophis eques)
• Checkered garter snake (Thamnophis marcianus)
• Narrow-headed garter snake (Thamnophis rufipunctatus)

• Arizona coral snake (Micruroides euryxanthus)

• New Mexico threadsnake (Rena dissecta)
• Western threadsnake (Rena humilis)

• Sidewinder (Crotalus cerastes)
• Western diamondback rattlesnake (Crotalus atrox)
• Arizona black rattlesnake (Crotalus cerberus)
• Rock rattlesnake (Crotalus lepidus)
• Speckled rattlesnake (Crotalus mitchellii)
• Black-tailed rattlesnake (Crotalus molossus)
• Western rattlesnake (Crotalus oreganus)
• Mohave rattlesnake (Crotalus scutulatus)
• Tiger rattlesnake (Crotalus tigris)
• Prairie rattlesnake (Crotalus viridis)
• Ridge-nosed rattlesnake (Crotalus willardi)
• Western massasauga (Sistrurus tergeminus)

• "The Reptiles and Amphibians of Arizona". Reptiles and Amphibians of Arizona. Retrieved 2024-08-08.