Histriasaurus
| Histriasaurus Temporal range: Early Cretaceous,  | |
|---|---|
| Vertebra from the holotype | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Clade: | Dinosauria | 
| Clade: | Saurischia | 
| Clade: | †Sauropodomorpha | 
| Clade: | †Sauropoda | 
| Superfamily: | †Diplodocoidea | 
| Family: | †Rebbachisauridae | 
| Genus: | †Histriasaurus Dalla Vecchia, 1998 | 
| Type species | |
| †Histriasaurus boscarollii Dalla Vecchia, 1998 | |
Histriasaurus (HIS-tree-ah-SAWR-us) (meaning "Istria lizard") was a genus of dinosaur from the Early Cretaceous (Hauterivian to Barremian stages, around 135-125 million years ago).