Moppy River, a perennial river of the Manning River catchment, is located in the Upper Hunter district of New South Wales, Australia.

Moppy River rises in the Barrington Tops, on the eastern slopes of Mount Royal Range, south of Tunderbolts Lookout in the Barrington Tops National Park, and flows generally east before reaching its confluence with the Barrington River, near the village of Moppy. The river descends 1,140 metres (3,740 ft) over its 22 kilometres (14 mi) course.

• Rivers of New South Wales
• List of rivers of New South Wales (L–Z)
• List of rivers of Australia

31°56′S 151°30′E / 31.933°S 151.500°E / -31.933; 151.500