| Named By: | Novas in 1997 |
| Time Period: | Late Cretaceous, 89 Ma |
| Location: | Argentina |
| Size: | 2 meters long |
| Diet: | unavailable |
| Fossil(s): | Twenty bones |
| Classification: | | Chordata | Reptilia | Dinosauria | Saurischia | Theropoda | Deinonychosauria | Dromaeosauridae | Unenlagiinae | |
Unenlagia (meaning "half-bird" in latinized mapudungun) is a genus of theropod dinosaur from the Late Cretaceous of Argentina.
The genus Unenlagia has been assigned two species: U. comahuensis, the type species described by Novas and Puerta in 1997, and U. paynemili, described by Calvo et al. in 2004.