| Named By: | X. He in 1979 |
| Time Period: | Middle Jurassic, Bathonian |
| Location: | China, Sichuan Province - Lower Shaximiao Formation |
| Size: | At least three meters long for the holotype, possibly as much as somewhere between 3.5 and 4 meters |
| Diet: | Herbivore |
| Fossil(s): | Skull and partial post cranial skeleton |
| Classification: | | Chordata | Reptilia | Dinosauria | Ornithischia | Ornithopoda | |
Yandusaurus is a genus of herbivorous basal euornithopod dinosaur from the Bathonian age (middle Jurassic, approximately 169 to 163 Ma) of China.