| Named By: | Charles Mortram Sternberg in 1929 |
| Time Period: | Late Cretaceous, 72.8-67 Ma |
| Location: | Canada, Alberta - Horseshoe Canyon Formation |
| Size: | Unavailable |
| Diet: | Herbivore |
| Fossil(s): | Skull and partial post cranial remains |
| Classification: | | Chordata | Reptilia | Dinosauria | Ornithischia | Thyreophora | Ankylosauria | Ankylosauridae | Ankylosaurinae | |
Anodontosaurus is an extinct genus of ankylosaurid dinosaurs within the subfamily Ankylosaurinae. It is known from the entire span of the Late Cretaceous Horseshoe Canyon Formation (mid Late Campanian to "middle" Maastrichtian stage, about 72.8-67 Ma ago) of southern Alberta, Canada. It contains a single species, Anodontosaurus lambei.