| Named By: | Joseph Leidy in 1870 |
| Time Period: | Late Eocene 38-33.9 Ma |
| Location: | Canada, Seskatchewan. USA, Colorado, Montana, South Dakota, Wyoming |
| Size: | Larger individuals up to 2.5 meters tall at the shoulder |
| Diet: | Herbivore |
| Fossil(s): | Numerous individuals allowing for accurate reconstructions of the whole animal |
| Classification: | | Chordata | Mammalia | Perissodactyla | Brontotheriidae | |
| Also known as: | | Ateleodon | Brontops | Brontotherium | Haplacodon | Menodus peltoceras | Oreinotherium | Teleodus | Titanops | Titanotherium ramosum | |
Megacerops ("large-horned face", from mega- "large" + keras "horn" + ops "face") is an extinct genus of the prehistoric odd-toed ungulate (hoofed mammal) family Brontotheriidae, an extinct group of rhinoceros-like browsers related to horses. It was endemic to North America during the Late Eocene epoch (38-33.9 mya), existing for approximately 4.1 million years.