Chironius spixii is a species of nonvenomous snake in the subfamily Colubrinae of the family Colubridae.

The specific name, spixii, is in honor of German biologist Johann Baptist von Spix.

[3] C. spixii may attain a total length (including tail) of 1.75 m (5.7 ft).

[2] The preferred natural habitat of C. spixii is forest or savanna at altitudes from near sea level to 800 m (2,600 ft), but it has also been found in plantations and pastures.

[1][2] C. spixii preys predominately upon amphibians and lizards, but it may also eat small mammals.