| Named By: | Adrian P. Hunt & Spencer G. Lucas in 1993 |
| Time Period: | Late Cretaceous, 74 Ma |
| Location: | USA, New Mexico - Kirtland Formation |
| Size: | Skull about 90 centimetres long. Total size uncertain |
| Diet: | Herbivore |
| Fossil(s): | Skull |
| Classification: | | Chordata | Reptilia | Dinosauria | Ornithischia | Ornithopoda | Hadrosauridae | Saurolophinae | |
Anasazisaurus ( AH-na-sah-zee-SAWR-as; "Anasazi lizard") is a genus of hadrosaurid ("duckbill") ornithopod dinosaur that lived about 74 million years ago, in the Late Cretaceous Period. It was found in the Farmington Member of the Kirtland Formation, in the San Juan Basin of New Mexico, United States. Only a partial skull has been found to date. It was first described as a specimen of Kritosaurus by Jack Horner, and has been intertwined with Kritosaurus since its description. It is known for its short nasal crest, which stuck out above and between its eyes for a short distance.