|Dumaresq River (Karaula)|
|Macintyre Brook, Dumaresq or Severn River|
|Name origin: in honour of the Dumaresq family, relatives of Ralph Darling|
|States||New South Wales, Queensland|
|Regions||New England Tablelands (IBRA), Northern Tablelands, Darling Downs, North West Slopes|
|Municipalities||Inverell, Glen Innes Severn, Goondiwindi, Moree Plains|
|Part of||Macintyre River, Murray–Darling basin|
|- left||Beardy River, Macintyre Brook|
|- right||Severn River (Queensland)|
|Source||Great Dividing Range|
|- location||near Mole River, New South Wales|
|- elevation||381 m (1,250 ft)|
|- location||near Stanthorpe, Queensland|
|Mouth||confluence with the Macintyre River|
|- location||near Boggabilla|
|- elevation||227 m (745 ft)|
|Length||214 km (133 mi)|
Dumaresq River //, a perennial stream of the Macintyre catchment within the Murray–Darling basin, is located in the Northern Tablelands and North West Slopes districts of New South Wales and the Darling Downs district of Queensland, Australia.
Part of the course of the river marks the boundary between Queensland and New South Wales.
The river rises on the western slopes of the Great Dividing Range, near Mole River in New South Wales. The upper reaches of the Dumaresq River, namely the Queensland branch of the Severn River, form north of Stanthorpe, in Queensland. The Dumaresq River flows generally southwest and northwest, joined by fourteen tributaries, including the Severn (Queensland), Beardy River, and Macintyre Brook, before reaching its confluence with the Macintyre River, near Boggabilla; descending 154 metres (505 ft) over its 214 kilometres (133 mi) course.
The Dumaresq River, together with Pike Creek, the Mole, Beardy, Severn (Queensland), Severn (New South Wales), and Macintyre rivers are all part of the Border Rivers group. The Dumaresq River flows through Bonshaw, New South Wales and Yelarbon and Texas in Queensland. South of Texas, the Bruxner Highway crosses the Dumaresq River.
The traditional custodians of the land surrounding the Dumaresq River are the Aboriginal Bigambul peoples, who called the river Karaula. The Kamilaroi people also have strong connections to the river.
The river was first sighted by European explorer and botanist, Allan Cunningham, in 1827 and named in honour of Lt-Colonel Henry Dumaresq, a relative of Ralph Darling, the Governor of New South Wales at that time.
- "Dumaresq River". Geographical Names Register (GNR) of NSW. Geographical Names Board of New South Wales. Retrieved 5 February 2013.
- "Dumaresq River". Place name details. Queensland Government. 16 December 1972. Retrieved 5 February 2013.
- "Map of Dumaresq River". Bonzle.com. Retrieved 5 February 2013.
- Low, Marie (13 April 2011). "Flood brings weed threat". Tenterfield Star. Retrieved 27 September 2011.