| Named By: | Sidney H. Haughton in 1924 |
| Time Period: | Late Triassic, 216.5-201 Ma |
| Location: | South Africa - Elliot Formation |
| Size: | Up to 8 meters long. Skull 25 centimetres long |
| Diet: | Herbivore |
| Fossil(s): | Complete skull and partial post cranial remains |
| Classification: | | Chrodata | Reptilia | Dinosauria | Saurischia | Sauropodomorpha | |
| Also known as: | | Roccosaurus tetrascralis | |
Melanorosaurus (meaning "Black Mountain Lizard", from the Greek melas/melas, "black", oros/oros, "mountain" + sauros/sauros, "lizard") is a genus of basal sauropodomorph dinosaur that lived during the Late Triassic period. A herbivore from South Africa, it had a large body and sturdy limbs, suggesting it moved about on all fours. Its limb bones were massive and weighty, like sauropod limb bones.