A flying frog (also called a gliding frog) is a frog that has the ability to achieve gliding flight. That is, it can descend at an angle of less than 45° relative to the horizontal. Other (non-flying) arboreal frogs can also descend vertically, but only at angles greater than 45°, which is referred to as parachuting.

Alfred Russel Wallace made one of the earliest reports of a flying frog. The species he observed was later described by George Albert Boulenger as Rhacophorus nigropalmatus.