| Named By: | Heber Longman in 1926 |
| Time Period: | Middle Jurassic, 171-167 Ma |
| Location: | Australia, Queensland - Hutton Sandstone Formation |
| Size: | Estimated 12-15 meters long |
| Diet: | Herbivore |
| Fossil(s): | Partial remains including ribs, rear limbs, ischium, partial pubis, caudal and dorsal vertebrae, small amount of cervical vertebrae. Other specimens have been found since initial discovery |
| Classification: | | Chordata | Reptilia | Dinosauria | Saurischia | Sauropodomorpha | Sauropoda | |
Rhoetosaurus (meaning "Rhoetos lizard"), named after Rhoetus, a titan in Greek Mythology, is a genus of sauropod dinosaur from the Jurassic of what is now eastern Australia. Rhoetosaurus is estimated to have been about 15 metres long, weighing about 9 tonnes. Subsequent authors have sometimes misspelled the name: Rhaetosaurus (de Lapparent & Laverat, 1955); Rheteosaurus (Yadagiri, Prasad & Satsangi, 1979).