| Named By: | J. Mo, W. Wang, Z. Huang, X. Huang & X. Xu in 2006 |
| Time Period: | Early Cretaceous |
| Location: | China, Guangxi - Napai Formation |
| Size: | Roughly estimated to be about 25 meters long |
| Diet: | Herbivore |
| Fossil(s): | Partial post cranial remains |
| Classification: | | Chordata | Reptilia | Dinosauria | Saurischia | Sauropoda | Macronaria | |
Fusuisaurus (meaning "Fusui lizard" from the name of the county where it was discovered) is a genus of sauropod dinosaur from the Early Cretaceous of China. Fragmentary postcranial remains of this animal have been discovered in 2001 in the Napai Formation of Guangxi, China and consist of the left ilium, left pubis, anterior caudals, most of the dorsal ribs and distal end of the left femur. This sauropod has been described as a basal titanosauriform.
The type species is F. zhaoi, named in honour of Chinese paleontologist Zhao Xijin.