Sanjuansaurus
| Sanjuansaurus Temporal range: Carnian ~ | |
|---|---|
| Preserved bones of the holotype specimen | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Clade: | Dinosauria | 
| Clade: | Saurischia | 
| Family: | †Herrerasauridae | 
| Genus: | †Sanjuansaurus Alcober & Martinez, 2010 | 
| Species: | †S. gordilloi | 
| Binomial name | |
| †Sanjuansaurus gordilloi Alcober & Martinez, 2010 | |
Sanjuansaurus ("San Juan Province lizard") is a genus of herrerasaurid dinosaur from the Late Triassic (Carnian) Ischigualasto Formation of the Ischigualasto-Villa Unión Basin in northwestern Argentina.