| Named By: | Robert T. Bakker in 1993 |
| Time Period: | Early Jurassic |
| Location: | England, Dorset |
| Size: | 5 meters long |
| Diet: | Piscivore |
| Fossil(s): | Single specimen of partial remains now only represented by a plaster cast of the original fossils. Skin impressions were also known with the original material |
| Classification: | | Chordata | Reptilia | Sauropterygia | Plesiosauria | Plesiosauroidea | Plesiosauridae | |
| Also known as: | | Plesiosaurus conybeari | |
Attenborosaurus is an extinct genus of pliosaurid from the Early Jurassic of Dorset, England. The type species is A. conybeari. The genus is named after David Attenborough, the species after William Conybeare.