| Named By: | Ryan, Russel, & Hartman in 2010 |
| Time Period: | Middle Campanian, 77.5 Ma |
| Location: | USA, Montana - Judith River Formation |
| Size: | Uncertain due to incomplete fossil material |
| Diet: | unavailable |
| Fossil(s): | Two partial parietal bones (the upper part of the frill) |
| Classification: | | Chordata | Reptilia | Dinosauria | Ornithicshia | Ceratopsia | Ceratopsidae | Chasmosaurinae | |
Medusaceratops is an extinct genus of chasmosaurine ceratopsian dinosaur known from the Late Cretaceous Judith River Formation (middle Campanian stage) of Montana, northern United States. It contains a single species, Medusaceratops lokii.