Westlothiana is a genus of reptile-like amphibian or possibly early reptile that bore a superficial resemblance to modern-day lizards. It lived about 338 million years ago during the latest part of the Visean age of the Carboniferous period. It is known from a single species, Westlothiana lizziae. The type specimen was discovered in East Kirkton Quarry, West Lothian, Scotland in 1984.