| Named By: | X. Fang, Pang, J., Y. Zhang, Pan, X. Wang, Li & Cheng in 2000 |
| Time Period: | Middle Jurassic, 168 Ma |
| Location: | China, Yunnan Province - Chuanjie Formation |
| Size: | Estimated about 25 meters long |
| Diet: | Herbivore |
| Fossil(s): | Partial post cranial fossils from at least three individuals |
| Classification: | | Chordata | Reptilia | Dinosauria | Saurischia | Sauropoda | Eusauropoda | Mamenchisauridae | |
Chuanjiesaurus is a genus of sauropod dinosaurs from the middle Jurassic Period. They lived in what is now China. The type species, Chuanjiesaurus anaensis, was first described by Fang, Pang, Lu, Zhang, Pan, Wang, Li and Cheng in 2000. Fossils of the species were found in the village of Chuanjie, Lufeng County, Yunnan Province, (in Chuanjie Formation deposits) and are named after the location where the fossils were discovered.