This is a list of known snakes in Missouri, United States.

Western Worm Snake Carphophis vermis

Northern Scarlet Snake Cemophora coccinea copei

Eastern Yellowbelly Racer Coluber constrictor flaviventris

Prairie Ring-necked Snake Diadophis punctatus arnyi

Great Plains Rat Snake Elaphe guttata

Black Rat Snake Elaphe obsoleta

Western Fox Snake Elaphe vulpina

Western Mud Snake Farancia abacura reinwardtii

Plains Hog-nosed Snake Heterodon nasicus nasicus

Eastern Hog-nosed Snake Heterodon platirhinos

Prairie Kingsnake Lampropeltis calligaster calligaster

Speckled Kingsnake Lampropeltis getula holbrooki

Red Milk Snake Lampropeltis triangulum syspila

Eastern Coachwhip Masticophis flagellum flagellum

Mississippi Green Water Snake Nerodia cyclopion

Yellow-bellied Water Snake Nerodia erythrogaster flavigaster

Broad-banded Water Snake Nerodia fasciata confluens

Diamond-backed Water Snake Nerodia rhombifer rhombifer

Northern Water Snake Nerodia sipedon sipedon

Rough Green Snake Opheodrys aestivus aestivus

Smooth Green Snake Opheodrys (Liochlorophis) vernalis

Bullsnake Pituophis catenifer sayi

Graham's Crayfish Snake Regina grahamii

Ground Snake Sonora semiannulata

Midland Brown Snake Storeria dekayi wrightorum

Northern Red-bellied Snake Storeria occipitomaculata occipitomaculata

Flat-headed Snake Tantilla gracilus

Western Ribbon Snake Thamnophis proximus proximus

Plains Garter Snake Thamnophis radix

Eastern Garter Snake Thamnophis sirtalis sirtalis

Lined Snake Tropidoclonian lineatum

Rough Earth Snake Virginia striatula

Western Earth Snake Virginia valeriae elegans

Eastern Copperhead Agkistrodon contortrix

Northern Cottonmouth Agkistrodon piscivorus

Timber Rattlesnake Crotalus horridus

Western Pygmy Rattlesnake Sistrurus miliarius streckeri

Eastern Massasauga Rattlesnake Sistrurus catenatus catenatus