Plestiodon longiartus is a species of skink which is endemic to Mexico.

[2] The lizard is found in the Sierra Madre del Sur in Guerrero, Mexico.

It was described in 2021, and was determined to be most closely related to Plestiodon ochoterenae.

[1] Plestiodon longiartus measure 36–67 mm (1.4–2.6 in) in snout–vent length.

This skink article is a stub.