| Named By: | Fainkui Zhang in 1975 |
| Time Period: | Middle Triassic, Anisian |
| Location: | China, Hunan Province - Batung (Xinlingzhen) Formation |
| Size: | About 2.5 meters long |
| Diet: | Often depicted as a herbivore, there has been speculation that it might have been durophagous (a shellfish eater) |
| Fossil(s): | Initially known from a well preserved skeleton, further skull and post cranial remains from many other individuals have been attributed to the genus |
| Classification: | | Chordata | Reptilia | Archosauria | Suchia | Paracrocodylomorpha | Poposauroidea | |
Lotosaurus is an extinct genus of sail-backed poposauroid known from Hunan Province of central China.