| Named By: | Ermine Cowles Case in 1936 |
| Time Period: | Early Triassic, 247.4-245 Ma |
| Location: | USA, Wyoming - Alcova Limestone Formation |
| Size: | Around 1 meter long |
| Diet: | Piscivore/Carnivore |
| Fossil(s): | Several individuals |
| Classification: | | Chordata | Reptilia | Sauropterygia | Pistosauroidea | Corosauridae | |
Corosaurus is an extinct genus of pistosauroid known from Wyoming of the United States.