| Named By: | Xing Hai, Wang Deyou, Han Fenglu, Corwin Sullivan, Ma Qingyu, He Yiming, David Hone, Yan Ronghao, Du Fuming & Xu Xing in 2014 |
| Time Period: | Late Cretaceous, 85 Ma |
| Location: | China, Henan Province, Xixia County - Majiacun Formation |
| Size: | Holotype roughly estimated at somewhere between 5.5 and 6 meters long |
| Diet: | Herbivore |
| Fossil(s): | partial remains including right maxilla (tooth bearing bone of the skull), right jugal and right dentary (lower left jaw bone). Post cranial remains including dorsal (back) vertebrae, ribs, shoulder and ulna (lower forearm bone) have also been attributed to the genus |
| Classification: | | Chordata | Reptilia | Dinosauria | Ornithischia | Ornithopoda | Hadrosauroidea | |
Zhanghenglong is an extinct genus of herbivorous hadrosauroid iguanodont dinosaur known from the Late Cretaceous (middle Santonian stage) Majiacun Formation in Xixia County of Henan Province, China. It contains a single species, Zhanghenglong yangchengensis, represented by a disarticulated and partial cranium and postcranial skeleton.