Atractus arangoi

{{Short description|Species of snake}}

{{Speciesbox

| image =

| status = CR

| status_system = IUCN3.1

| status_ref = {{cite iucn |author=Bolívar, W. |author2=Velasco, J. |author3=Castañeda, M.R. |year=2021 |title=Atractus arangoi |page=e.T44580253A44580256 |doi=10.2305/IUCN.UK.2021-3.RLTS.T44580253A44580256.en}}

| genus = Atractus

| species = arangoi

| authority = Prado, 1940

}}

Atractus arangoi, the brown ground snake or big ground snake, is a species of snake in the family Colubridae. The species can be found in Colombia.