Clarence River, New South Wales

Clarence River (Breimba or Berrinbah)
Big River
A mature wave dominated, barrier estuary
The Grafton Bridge across the Clarence River.
Name origin: In honour of the Duke of Clarence
Country	Australia
State	New South Wales
Regions	NSW North Coast (IBRA), Northern Rivers
Local government areas	Kyogle, Clarence Valley
Tributaries
- left	Nymboida River, Mann River, Tooloom Creek, Cataract River, Orara River, Esk River
- right	Coldstream River, Timbarra River
City	Grafton
Primary source	Border Ranges
- location	near Tooloom National Park and Bonalbo
- elevation	252 m (827 ft)
Secondary source	Maryland River
Mouth	Coral Sea, South Pacific Ocean
- location	near Iluka and Yamba
- coordinates	29°43′S 153°37′E / 29.717°S 153.617°E / -29.717; 153.617Coordinates: 29°43′S 153°37′E / 29.717°S 153.617°E / -29.717; 153.617
Length	394 km (245 mi)
Depth	2.2 m (7 ft)
Volume	283,001 m3 (9,994,086 cu ft)
Basin	22,850 km2 (8,822 sq mi)
Area	132 km2 (51 sq mi)
Discharge
- average	160 m3/s (5,650 cu ft/s)
- max	20,000 m3/s (706,293 cu ft/s)
- min	1 m3/s (35 cu ft/s)
River islands	Woodford Island, Chatsworth Island, and Harwood Island
Website: NSW Environment and Heritage webpage

The Clarence River (Aboriginal: Breimba or Berrinbah), a mature wave dominated, barrier estuary, is situated in the Northern Rivers district of New South Wales, Australia.

The river rises on the eastern slopes of the Great Dividing Range, in the Border Ranges west of Bonalbo, near Rivertree at the junction of Koreelah Creek and Maryland River, on the watershed that marks the border between New South Wales and Queensland. The river flows generally south, south east and north east, joined by twenty-four tributaries including the Tooloom Creek and the Mann, Nymboida, Cataract, Orara, Coldstream, Timbarra, and Esk rivers. The river reaches its mouth at its confluence with the Coral Sea in the South Pacific Ocean, between Iluka and Yamba; descending 256 metres (840 ft) over the course of its 394 kilometres (245 mi) length.