|Named By:||Anatoly Konstantinovich Rozhdestvensky in 1966|
|Time Period:||Late Cretaceous, 96-88 Ma|
|Location:||Mongolia - Dashuigou Formation. Possibly also China, Gansu Province - Lower Red Unit Formation|
|Size:||Estimated about 5.5 meters long|
|Classification:||| Chordata | Reptilia | Dinosauria | Ornithischia | Ornithopoda | Iguanodontia ||
|Also known as:||| Probactrosaurus alshanicus ||
Probactrosaurus (meaning "before Bactrosaurus") is an early herbivorous hadrosauroid iguanodont dinosaur. It lived in China during the Late Cretaceous period. It is often known as the Asian Iguanodon.