Lansdowne River, a watercourse of the Manning River catchment, is located in the Mid North Coast district of New South Wales, Australia.

Course and features

Lansdowne River rises below Mount Gibraltar in the Gibraltar Range, north northwest of Upper Lansdowne, and flows generally southeast before reaching its confluence with the Northern Arm of the Manning River, near Coopernook. The river descends 740 m over its 51 km course. The Pacific Highway crosses the Lansdowne River south-east of Coopernook.