| Named By: | W. inH. Wu, Z. inM. Dong, Y. inW. Sun, C. inT. Li & T. Li in 2006 |
| Time Period: | Aptian-Cenomanian |
| Location: | China - Quantou Formation |
| Size: | Unknown |
| Diet: | Herbivore |
| Fossil(s): | Eighteen vertebrae |
| Classification: | | Chordata | Reptilia | Dinosauria | Saurischia | Sauropoda | |
Jiutaisaurus is a genus of sauropod dinosaur from the Quantou Formation of China. Jiutaisaurus was a sauropod which lived during the Cretaceous. The type species, Jiutaisaurus xidiensis, was described by Wu et al. in 2006, and is based on eighteen vertebrae.