Eocursor (meaning "dawn runner") is genus of basal ornithischian dinosaur that lived in what is now South Africa during the Early Jurassic.

Remains of this animal have been found in the Upper Elliot Formation and it is among the most completely known early ornithischians, shedding new light on the origin of the group.

[2] Eocursor was subsequently interpreted as a taxon of Early Jurassic age by McPhee et al. (2017), who identified the specimen as having originated from the Upper (not Lower) Elliot Formation.

"[1] Eocursor was an early ornithischian, one of the first so-called "bird-hipped" dinosaurs, a group which would eventually give rise to animals such as Stegosaurus, Triceratops, and Iguanodon.

Butler et al. consider Eocursor more primitive than Lesothosaurus and Heterodontosauridae, but more derived than the Pisanosaurus, as a basal ornithischian forming a sister clade of Genasauria.