Oreosaurus achlyens

{{short description|Species of lizard}}

{{speciesbox

| image =

| status = LC

| status_system = IUCN3.1

| status_ref = Rivas, G. & Schargel, W. 2016. Riama achlyens. The IUCN Red List of Threatened Species 2016: e.T50950436A50950441. https://doi.org/10.2305/IUCN.UK.2016-1.RLTS.T50950436A50950441.en. Downloaded on 31 July 2019.

| genus = Oreosaurus

| species = achlyens

| authority = (Uzzell, 1958)

| synonyms =

• Proctoporus achlyens
• Riama achlyens

}}

Oreosaurus achlyens is a species of lizard in the family Gymnophthalmidae.{{NRDB species |genus= Oreosaurus |species=achlyens |accessdate=31 July 2019}} It is endemic to Venezuela.