List of U.S. state reptiles

Twenty-eight U.S. states have named an official state reptile. As with other state symbols, states compare admirable aspects of the reptile and of the state, within designating statutes. Schoolchildren often start campaigns promoting their favorite reptile to encourage state legislators to enact it as a state symbol. Many secretaries of state maintain educational web pages that describe the state reptile.

Oklahoma was the first state to name an official reptile, the common collared lizard, in 1969. Only two states followed in the 1970s, but the ensuing decades saw nominations at a rate of almost one per year. State birds are more common, with all 50 states naming one, and they were adopted earlier, with the first one selected in 1927.

Before their formal designation as state reptiles, Florida's alligator, Maryland's terrapin, and Texas's horned lizard were all mascots of a major in-state university. West Virginia's timber rattlesnake was an early American flag element dating back to 1775.

Because of their cold-blooded nature, reptiles are more common in warmer climates, and 19 of the 28 state reptiles represent southern states. Six states chose a species named after the state. A turtle was chosen by more than half of the states. In all, the most frequently chosen species, with four states naming it, is the painted turtle. One state reptile, the bog turtle, is Critically endangered. The Alabama red-bellied turtle is legally designated as an endangered species in the United States, and several others, also turtles, are threatened at some lesser level.