| Slender-legged tree frog | |
|---|---|
| Osteocephalus taurinus | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Amphibia |
| Order: | Anura |
| Family: | Hylidae |
| Subfamily: | Lophyohylinae |
| Genus: | Osteocephalus Steindachner, 1862 |
| Species | |
|
26, see text. | |

Osteocephalus is a genus of frogs, commonly called the slender-legged tree frogs, in the family Hylidae. Species in the genus are found in the Guianas, the Amazon Basin, Venezuela, Colombia, southeastern Brazil, and north-eastern Argentina. Males are warty, while females are smooth.
There are 26 described species in Osteocephalus: