| Named By: | R. J. Butler, M. D. Ezcurra, F. C. Montefeltro, A. Samathi & G. Sobral in 2015 |
| Time Period: | Middle Triassic, 246 Ma |
| Location: | South Africa - Burgersdorp Formation |
| Size: | Uncertain due to lack of remains |
| Diet: | Herbivore |
| Fossil(s): | Partial skull and lower jaws |
| Classification: | | Chordata | Reptilia | Archosauromorpha | Rhynchosauria | |
Eohyosaurus is an extinct genus of basal rhynchosaur known from the early Middle Triassic (early Anisian stage) Burgersdorp Formation of Free State, South Africa. It contains a single species, Eohyosaurus wolvaardti.