Plestiodon marginatus

{{short description|Species of reptile}}

{{speciesbox

| image =

| status = NT

| status_system = IUCN3.1

| status_ref = {{cite iucn |author=Kidera, N. |author2=Ota, H. |name-list-style=amp |date=2017 |title=Plestiodon marginatus |volume=2017 |page=e.T96265367A96265370 |doi=10.2305/IUCN.UK.2017-3.RLTS.T96265367A96265370.en |access-date=1 September 2023 }}

| genus = Plestiodon

| species = marginatus

| authority = Hallowell, 1861

| synonyms = {{species list

| Eumeces marginatus | (Hallowell, 1861) }}

| synonyms_ref =

| range_map =

}}

Plestiodon marginatus, the Ousima skink or Okinawa blue-tailed skink, is a species of skink. It is endemic to the central (Okinawa Islands) and northern parts (Amami Islands, Tokara Islands) of the Ryukyu Islands (Japan).{{NRDB species|genus=Plestiodon |species=marginatus|access-date=1 September 2023 }}