The
River Suir (; , Irish
An tSiúr or
Abhainn na Siúire) is a river in Ireland that flows into the Atlantic Ocean near
Waterford after a distance of . The catchment area of the River Suir is 3,610 km
2. The long term average flow rate of the River Suir is 76.9 Cubic Metres per second (m
3/s) - This is more than twice the flow of the
River Barrow (37.4 m
3/s)