| Named By: | Heber Longman in 1933 |
| Time Period: | Early Cretaceous, 110-105 Ma |
| Location: | Australia, Queensland, Winton Formation |
| Size: | Estimated 15 meters long |
| Diet: | unavailable |
| Fossil(s): | Several specimens of post cranial remains |
| Classification: | | Chordata | Reptilia | Dinosauria | Saurischia | Sauropodomorpha | Sauropoda | Titanosauria | |
Austrosaurus (meaning "Southern lizard") was an extinct genus of sauropod dinosaur from the Allaru Formation, from the early Cretaceous (110-105 million years ago) of Central-Western Queensland in Australia.