| Named By: | David C. Evans, Ryan K. Schott, Derek W. Larson, Caleb M. Brown, Michael J. Ryan in 2013 |
| Time Period: | Late Cretaceous, 84-83.5 Ma |
| Location: | Canada, Alberta - Milk River Formation, Deadhorse Coulee Member |
| Size: | Estimated to be about 1.8 meters long and 40Kg in weight |
| Diet: | Herbivore |
| Fossil(s): | Skull fragments including two domes |
| Classification: | | Chordata | Reptilia | Dinosauria | Ornithischia | Pachycephalosauridae | |
Acrotholus is an extinct genus of fully domed pachycephalosaurid dinosaur known from the Late Cretaceous Deadhorse Coulee Member of the Milk River Formation (latest Santonian stage) of southern Alberta, Canada. It contains a single species, Acrotholus audeti.