Stenocercus simonsii

{{Short description|Species of lizard}}

{{Speciesbox

| image =

| status = EN

| status_system = IUCN3.1

| status_ref = {{cite iucn |author1=Cisneros-Heredia, D.F. |author2=Valencia, J. |author3=Brito, J. |author4=Almendáriz, A. |author5=Munoz, G. |date=2019 |title=Stenocercus simonsii |volume=2019 |page=e.T50950723A50950728 |url=https://www.iucnredlist.org/species/50950723/50950728 |access-date=16 December 2021}}

| genus = Stenocercus

| species = simonsii

| authority = Boulenger, 1899

}}

Stenocercus simonsii, Simons's whorltail iguana, is a species of lizard of the family Tropiduridae.{{NRDB species |genus=Stenocercus |species=simonsii|access-date=5 April 2022}} It is found in Ecuador.