The River Suir is a river in Ireland that flows into the Atlantic Ocean through Waterford after a distance of 185 kilometres.
The catchment area of the Suir is 3,610 km2. Its long-term average flow rate is 76.9 m3/s, about twice the flow of either the River Barrow (37.4 m3/s) or the River Nore (42.9 m3/s) before these join, but a little less than the Barrow\\\'s flow when it meets the Suir 20 km downstream.
Popular with anglers, it abounds in brown trout and salmon.
Although the Suir holds the record for a salmon taken from an Irish river (weighing 57 lb/26 kg, taken on a fly in 1874), as has been the case in many other Atlantic rivers, salmon stocks have been in decline in recent years.
