| Named By: | Harry Govier Seeley in 1870 |
| Time Period: | Early Cretaceous |
| Location: | England |
| Size: | Uncertain |
| Diet: | Herbivore |
| Fossil(s): | Based upon two dorsal (back) vertebrae |
| Classification: | | Chordata | Reptilia | Dinosauria | Sauropoda | Titanosauriformes | |
Ornithopsis (meaning "bird-likeness") was a medium-sized Early Cretaceous sauropod dinosaur, from England.