| Named By: | Peter M. Galton in 1977 |
| Time Period: | Early Cretaceous |
| Location: | England |
| Size: | Holotype estimated at about 1.2 meter long, though this is also noted as being a juvenile. An isolated 50 centimetre long femur suggests an adult size of approximately 4.4 meters long when scaled up from the holotype |
| Diet: | Herbivore |
| Fossil(s): | Partial post cranial remains |
| Classification: | | Chordata | Reptilia | Dinosauria | Ornithischia | Ornithopoda | Dryosauroidea | Dryosauridae | |
| Also known as: | | Dryosaurus canaliculatus | |
Valdosaurus ("Weald Lizard") is a genus of bipedal herbivorous iguanodont ornithopod dinosaur found on the Isle of Wight and elsewhere in England. It lived during the Early Cretaceous.