Osteocephalus festae is a frog in the family Hylidae endemic to Ecuador and Peru.

The adult frog is brown in color, and some individuals have black marks.

It has cream-colored lines on its lips and a light mark under each eye.

[2] This frog lives near rivers and streams with fast-flowing water and waterfalls.

The adult frogs sit on plants 40–250 cm above the ground.