| Named By: | Edward Drinker Cope in 1879 |
| Time Period: | Oligocene, 33.3-26.3 Ma |
| Location: | USA - California, Nebraska, Oregon, South Dakota |
| Size: | 1.2 meters long |
| Diet: | Carnivore |
| Fossil(s): | Multiple specimens |
| Classification: | | Chordata | Mammalia | Carnivora | Nimravidae | |
| Also known as: | | Archaelurus debilis | Dinictis major | Nimravus altidens | Nimravus bumpensis | Nimravus confertus | Nimravus debilis | Nimravus gomphodus | Nimravus major | Nimravus meridianus | |
Nimravus is an extinct genus of "false" saber-toothed cat in the family Nimravidae, subfamily Nimravinae, that was endemic to North America during the Oligocene epoch (33.3--26.3 mya), existing for approximately 7 million years.