| Named By: | Barnum Brown in 1910 |
| Time Period: | Late Cretaceous, 74.5 Ma |
| Location: | USA - New Mexico - Kirtland Formation |
| Size: | Estimated around the 10 meter mark, but this is now based upon comparison to other more complete genera |
| Diet: | Herbivore |
| Fossil(s): | Based upon a partial skull, many other sets of remains once attributed to the genus have since been removed |
| Classification: | | Chordata | Reptilia | Dinosauria | Ornithischia | Ornithopoda | Hadrosauroidea | Hadrosauridae | Saurolophinae | |
| Also known as: | | Anasazisaurus | |
Kritosaurus is an incompletely known genus of hadrosaurid (duck-billed) dinosaur. It lived about 74.5-66 million years ago, in the Late Cretaceous of North America. The name means "separated lizard" (referring to the arrangement of the cheek bones in an incomplete type skull), but is often mistranslated as "noble lizard" in reference to the presumed "Roman nose" (in the original specimen, the nasal region was fragmented and disarticulated, and was originally restored flat).