| Named By: | Harry Govier Seeley in 1887 |
| Time Period: | Early Cretaceous |
| Location: | England, Isle of Wight |
| Size: | Unknown |
| Diet: | Carnivore |
| Fossil(s): | Femur, sacrum, pubis and some vertebrae |
| Classification: | | Chordata | Reptilia | Dinosauria | Saurischia | Theropoda | Coelurosauria | Compsognathidae | |
| Also known as: | | Poekilopleuron pusillus | Poekilopleuron minor | |
Aristosuchus was a small coelurosaurian dinosaur, whose name was derived from the Greek aristos (bravest, best, noblest) and soukhos, the Ancient Greek corruption of the name of the Egyptian crocodile-headed god Sobek. It shared many characteristics with birds.