Queanbeyan River, a perennial stream in New South Wales, Australia. It is part of the Molonglo catchment. The catchment is in the Murray-Darling Basin. The river is in the Monaro and Capital Country regions of New South Wales. The river is in length. The river catchment is . The Queanbeyan River and the Cotter River meet the potable water supply needs of the Canberra and Queanbeyan region. The two regions' water quality is protected under federal legislation.