| Named By: | A. S. Romer in 1963 |
| Time Period: | Late Carboniferous |
| Location: | USA, Ohio, Texas |
| Size: | Up to about 3 meters long |
| Diet: | Carnivore/Piscivore |
| Fossil(s): | Remains of at least two individuals |
| Classification: | | Chordata | Anthracosauria | Eogyrinidae | |
Neopteroplax is an extinct genus in the family Eogyrinidae. It was a predator of great size, reaching up to 3 m (9.8 ft) in length with a robust 40 cm skull.
Two species are recognized:
Neopteroplax conemaughensis
Neopteroplax relictus