| Named By: | V. Tidwell, K. Carpenter, & W. Brooks in 1999 |
| Time Period: | Early Cretaceous, 126 Ma |
| Location: | USA, Texas - Paluxy Formation, Utah - Cedar Mountain Formation - Yellow Cat member |
| Size: | Unavailable |
| Diet: | Herbivore |
| Fossil(s): | Partial post cranial remains of at least three individuals |
| Classification: | | Chordata | Reptilia | Dinosauria | Saurischia | Sauropodomorpha | Sauropoda | Titanosauriformes | Brachiosauridae | |
Cedarosaurus (meaning "Cedar lizard" - named after the Cedar Mountain Formation, in which it was discovered) was a nasal-crested macronarian dinosaur genus from the Early Cretaceous Period (Barremian). It was a sauropod which lived in what is now Utah. It was first described by Tidwell, Carpenter and Brooks in 1999.
It shows similarities to the brachiosaurid Eucamerotus from the Wessex Formation of southern England, as well as to Brachiosaurus from the Morrison Formation.