This is an alphabetical list of the main rivers on the island of Ireland. It includes rivers that flow through the Republic of Ireland and Northern Ireland. Rivers that flow through Northern Ireland are marked with an asterisk (*). There are over 70,000 km of waterways in the Republic of Ireland contained in 3,192 river water bodies including rivers, streams, and tributaries. The major rivers have their length (in miles and kilometres) given. Also shown are two tables. Table 1 shows the longest rivers in Ireland with their lengths (in miles and kilometres), the counties they flow through, and their catchment areas (in km<sup>2</sup>). Table 2 shows the largest rivers in Ireland (by mean flow) in cubic meters per second.
Longest Irish Rivers (with Basin areas)
Lengths obtained from the Ordnance Survey of Ireland: Rivers and their Catchment Basins 1958 (Table of Reference), and for the rivers Bann and Erne â Notes on River Basins by Robert A. Williams TABLE 1 a
- The length of the River Shannon from the Shannon Pot to Limerick City is with a basin area of 11,700 km<sup>2</sup>.
- The River Shannon's overall length (to Loop Head), using the Owenmore River (County Cavan) as source, is , 11 km (7 mi) longer than the Shannon Pot source.
- The River Shannon's overall length (to Loop Head), using the Boyle River's furthest source, is , making the Boyle-Shannon river the longest natural stream flow (source to sea) in Ireland, 31.6 km (19.5 mi) longer than the Shannon Pot source.
- The River Shannon is a traditional freshwater river for just about 45% of its total length. Excluding the tidal estuary from its total length of , if one also excludes the lakes (L. Derg , L. Ree , L. Allen plus L. Boderg, L. Bofin, L. Forbes, L. Corry) from the Shannon's freshwater flow of , the Shannon as a freshwater river is only about long.
b
- The total basin area of the Three Sisters (Barrow, Nore and Suir) is 9,207 km<sup>2</sup>.
c
- The traditional length given for the River Bann is 80 miles (129 km) which is the combined total length of Upper and Lower Bann rivers and doesn't include Lough Neagh.
- The total length of the Ulster Blackwater from its source to the sea via L. Neagh and the Lower Bann is 186.3 km (115.75 mi), surpassed, in Ireland, only by the Shannon and Barrow rivers. This is the longest stream flow (source to sea) in Ulster.
d
Largest Irish Rivers (by flow)
TABLE 2
<sup>a</sup> The River Shannon's 209 m<sup>3</sup>/s is to Limerick City (Catchment area: 11,700 km<sup>2</sup>). If the discharges from all of the rivers and streams into the Shannon Estuary (including the rivers Feale 34.6m<sup>3</sup>/s, Maigue 15.6m<sup>3</sup>/s, Fergus 25.7m<sup>3</sup>/s, and Deel 7.4m<sup>3</sup>/s) are added to the discharge at Limerick giving a total catchment of 16,865 km<sup>2</sup>, the total discharge of the River Shannon at its mouth at Loop Head reaches 300 m<sup>3</sup>/s
<sup>b</sup> The River Bann's 92 m<sup>3</sup>/s is to Movanagher Gauging station (Basin area 5209.8 km<sup>2</sup>). The 102.5 m<sup>3</sup>/s is based on the total basin area of 5808 km<sup>2</sup> .
<sup>c</sup> The Three Sisters (Barrow, Nore & Suir) total flow into Waterford Harbour is 154 m<sup>3</sup>/s and the combined flow of the Barrow and Nore rivers is 86 m<sup>3</sup>/s before joining the river Suir near Waterford City.
A
B
- Baelanabrack River
- Baleally Stream, County Dublin
- River Ballinamallard*
- Ballinascorney Stream, County Dublin
- Ballinderry River*
- Ballinglen River, County Mayo
- Ballintotty River, County Tipperary
- Ballintra River
- Ballisodare River
- Ballyboghil River, County Dublin, aka Ballyboughal
- Ballycassidy*
- Ballyfinboy River
- Ballymaice Stream, County Dublin
- Ballymeeny River, County Sligo
- Ballynahatty*
- Ballynahinch River*
- Ballyogan Stream, County Dublin
- Balsaggart Stream, County Dublin
- Bandon
- River Bann (Wexford)
- Bann* â longest river in Northern Ireland. Upper Bann flows into Lough Neagh and then continues north as the Lower Bann.
- Bannagh*
- Barrow
- Bartramstown River, County Dublin
- Belderg River, County Mayo
- Bellanaminnaun River, County Mayo
- Bellawaddy River, County Sligo
- Bilboa River
- River Black County Mayo
- Blackbanks Stream, County Dublin
- Blackditch Stream, County Dublin
- Blackwater, Kerry
- River Blackwater, Kildare and Meath
- River Blackwater, Cavan and Meath
- Blackwater, Munster
- River Blackwater (Ulster)*
- Bloody Stream, Howth, County Dublin
- Boggeen Stream, County Dublin
- Boherboy Stream, County Dublin
- Boyle River (Total)
- River Boyne
- Bracken River, County Dublin
- Bracken, Balbriggan
- River Bradoge, County Dublin
- Breedoge River
- River Bride (Blackwater)
- River Bride (Lee)
- Bride's Glen Stream, County Dublin
- Bride's Stream, County Dublin
- Broad Meadow River, County Dublin
C
- Cabragh River, County Sligo
- River Callan*
- River Camac, County Dublin
- River Camcor
- Camlin River
- Camlough*
- River Camogue
- Camowen River*
- Caragh River
- Carey*
- Colin River*
- Carn River, County Mayo
- Carrickbrack Stream, County Dublin
- Carrickmines River, County Dublin
- River Clare (via Lough Corrib)
- Carrowbeg
- Carryduff*
- Carysfort-Maretimo Stream, County Dublin
- Cashla River
- Castle Stream, County Dublin
- Castletown River
- Cemetery Drain, County Dublin
- River Cladagh* (including Arney)
- Clady River*
- Clanrye*
- Claremont Stream, County Dublin
- River Clarin
- River Clodiagh
- Clodiagh River
- Cloghfin River
- Cloonaghmore River
- Colebrooke River*
- River Colligan
- Commons Water, County Dublin
- Coolcour Brook, County Dublin
- Corduff River, County Dublin
D
E
F
- River Fane, County Louth
- Fairy Water
- Farset*
- River Faughan*
- River Feale
- River Fergus
- Feorish River
- River Ferta, County Kerry
- Fettercairn Stream, County Dublin
- Fiddaun River, County Mayo
- Figile River (Kildare)
- Finglas River, County Dublin
- Finglaswood Stream, County Dublin
- River Finisk
- River Finn (County Donegal) (Foyle) â rises and flows mainly through County Donegal, Republic of Ireland
- River Finn (Erne tributary) (Erne)
- Finned River, County Sligo
- River Flesk
- Flurry River, County Louth*
- Forrest Little Stream, County Dublin
G
- River Galey
- Gallanstown Stream, County Dublin
- Gallblack Stream, County Dublin
- River Garavogue (including L. Gill and R. Bonnet)
- Gaybrook Stream, County Dublin
- Glashaboy River
- Glashoreag River, County Kerry
- Glasthule Stream, County Dublin
- Glen*
- Glenamoy River County Mayo
- Glenamuck Stream, County Dublin
- Glenariff*
- Glenaulin Stream, County Dublin
- Glencullen River, County Dublin and County Wicklow
- Glendergan*
- Glenelly River*
- Glenglassera River, County Mayo
- Glenmornan*
- Glenulra River, County Mayo
- River Glore
- River Glyde
- Golf Stream, County Dublin
- River Goul
- Grange Stream, County Dublin
- Grange River (Corrib)
- River Greese
- Griffeen River, County Dublin
- Grillagh River
- River Gweebarra
- Gweestin River
- Gweestion River (Moy)
H
I
J
K
L
M
N
O
P
Q
R
S
- St. Laurence's Stream, County Dublin
- St. Margaret's Stream, County Dublin
- Santa Sabina Stream, County Dublin
- Santry River, County Dublin
- Scribblestown Stream, County Dublin
- Shallon Stream, County Dublin
- Shanganagh River, County Dublin
- River Shannon â longest river on the island. Develops into Lough Allen, Lough Bofin, Lough Ree and Lough Derg along its course.
- Shanow River
- Shimna*
- River Shiven
- Shournagh River
- Sillees River*
- Silver River
- Six Mile Water*
- Slade Brook, County Dublin
- River Slaney, County Wicklow, County Carlow and County Wexford
- Slang River, County Dublin
- River Slate
- Sluice River, County Dublin
- Smerlagh (Smaorlagh) River
- Sruh Croppa*
- Stein River, County Dublin
- Stonestown River
- Stoneyford
- River Strule*
- River Suck
- River Suir
- River Sullane
- Swan River, County Dublin
- River Swanlinbar (also known as Cladagh)*
- River Swilly
T
U
V
W
Y
See also
References
External sources