| Named By: | L. Salgado in 1996 |
| Time Period: | Late Cretaceous~83-73 Ma |
| Location: | Argentina - Anecleto Formation, Allen Formation |
| Size: | Roughly estimated between 20-25 meters long |
| Diet: | Herbivore |
| Fossil(s): | Few dorsal (back) and some caudal (tail) vertebra. Partial right femur |
| Classification: | | Chordata | Reptilia | Dinosauria | Saurischia | Sauropoda | Titanosauria | |
Pellegrinisaurus (meaning "Lizard from Pelligrini") is the name given to a genus of dinosaur from the Late Cretaceous. It was a titanosaur which lived in what is now Argentina, found in the Anacleto and Allen Formations, stretching the range of Pellegrinisaurus from early to late Campanian in age. The type species, Pellegrinisaurus powelli, was described by Salgado in 1996, and is based on mostly vertebrae. Pelligrinisaurus is estimated to have been between 62 and 78 feet (19 and 24 m) in length, but because a full fossil skeleton has not been recovered, this is only a rough estimate.