Manilla River, a perennial stream that is part of the Namoi catchment within the Murray–Darling basin, is located in the Northern Tablelands district of New South Wales, Australia.The stream (called a river) rises south–west of Barraba on the northern slopes of the Baldwins Range and drains a portion of the hill country on the western side of the New England highlands and the southern slopes of the Nandewar Range; flowing generally north and east and to the town of Barraba.