Atractus chthonius

{{Short description|Species of snake}}

{{Speciesbox

| image =

| status = DD

| status_system = IUCN3.1

| status_ref = {{cite iucn |author=Caicedo, J. |author2=Bolívar, W. |author3=Velasco, M. |year=2017 |title=Atractus chthonius |page=e.T44580307A44580310 |doi=10.2305/IUCN.UK.2017-2.RLTS.T44580307A44580310.en}}

| genus = Atractus

| species = chthonius

| authority = Passos & J.D. Lynch, 2010

}}

Atractus chthonius is a species of snake in the family Colubridae. The species can be found Colombia.