Mosleyia is a genus of stream-dwelling frogs in the family Pelodryadidae. These frogs are native to the tropical rainforests of north-eastern Queensland Australia. Species in the genus were previously included within the wastebasket genus Litoria, but were separated into a new genus in 2025. They are medium sized frogs that breed in fast-flowing streams by gluing their eggs to the underside of rocks that are protected by the cascading water. Their tadpoles have adapted to this environment by evolving a strong suctoral disc on their mouths, which point downward so the can grip to the creek-bed in very fast-flowing water.

The genus is named for Geoff Mosley AM, the director of the Australian Conservation Foundation from 1973 to 1986.