The Severn River (NSW)* is a river in the north of New South Wales, Australia. It rises on the Northern Tablelands, New South Wales just north of Glen Innes and is wholly in NSW. It flows north-west to the Pindari Dam which is located on it south-east of Ashford through Kwaimbal National Park and then into Macintyre River.
Its tributaries include Beardy Waters and the Wellingrove Creek.
Excellent fishing can be found all the way along this river. The Severn River is regularly stocked with native fingerlings, Murray Cod and Golden Perch.
A rare plant, the Severn River heath-myrtle is restricted to the Severn River Nature Reserve and an adjacent property, about 60 kilometres north-west of Glen Innes on the Northern Tablelands.
The Severn River Rail Bridge on the now disused Main North Railway Line, six kilometres west-south-west of Dundee has been placed on the Register of the National Estate. This bridge consists of a series of timber trusses completed in 1886 and is long, with fifteen spans totalling 159 metres. When completed it was the longest timber truss bridge in Australia.
The double naming is attributed to early explorers of the region.