| Named By: | J. O. Calvo & L. Salgado in 1995 | 
| Time Period: | Aptian-Albian Early Cretaceous | 
| Location: | Argentina - Rio Limay Formation, Lohan Cura Formation | 
| Size: | About 15 meters long | 
| Diet: | Herbiovore | 
| Fossil(s): | Remains of at least two individuals revealing the back of the skull and parts of the post cranial skeleton | 
| Classification: | | Chordata | Reptilia | Dinosauria | Saurischia | Sauropoda | Rebbachisauridae | | 
Limaysaurus is a herbivorous rebbachisaurid sauropod dinosaur from the Lower Cretaceous of northwestern Patagonia.