Ignavusaurus is a genus of basal sauropodomorph dinosaur that lived during the Early Jurassic in what is now present-day Lesotho. Its fossils were found in the upper Elliot Formation which is probably Hettangian in age (around 200 million years ago). It was described on the basis of a partial, well preserved articulated skeleton. The type species, I. rachelis, was described in 2010 by Spanish palaeontologist F. Knoll.