Rivers of Ireland

Shown here are all the major rivers and tributaries of Ireland with their lengths (in kilometres and miles). Starting with the Northern Ireland rivers, and going in a clockwise direction, the rivers (and tributaries) are listed in regard to their entry into the different seas: the Irish Sea, the Celtic Sea and the Atlantic Ocean. Also shown are two tables. Table 1 shows the longest rivers in Ireland with their lengths (in kilometres and miles), the counties they flow through, and their catchment areas (in square kilometres). Table 2 shows the largest rivers in Ireland (by mean flow) in cubic metres per second.

Image:Ireland physical medium.png).]]

The longest river in Ireland is the River Shannon, at {{convert|360.5|km|mi}}. The river develops into three lakes along its course, Lough Allen, Lough Ree and Lough Derg. Of these, Lough Derg is the largest. The Shannon enters the Atlantic Ocean at the Shannon Estuary. Other major rivers include the River Liffey, River Lee, River Swilly, River Foyle, River Lagan, River Erne, River Blackwater, River Nore, River Suir, River Barrow (The Three Sisters), River Bann, River Slaney, River Boyne, River Moy and River Corrib.

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 – Notes on River Basins by Robert A. Williams

class="wikitable"
! River ! Counties ! Length ! Basin Area
1 \| River Shannon (including estuary and flow through lakes)^a \| Cavan, Leitrim, Roscommon, Longford, Westmeath, Galway, Offaly, Tipperary, Clare, Limerick, Kerry \| 360 km (224 mi) \| 16,800 km²Comprehensive study of Riverine Inputs Details of hydrometric stations, sampling stations Page 17, Table 2 [http://www.epa.ie/pubs/reports/water/flows/Hydrometric%20Data%20for%20the%202009%20OSPAR%20Report.pdf] {{Webarchive\|url=https://web.archive.org/web/20170805021614/http://www.epa.ie/pubs/reports/water/flows/Hydrometric%20Data%20for%20the%202009%20OSPAR%20Report.pdf \|date=2017-08-05 }}
2 \| River Barrow^b \| Laois, Kildare, Kilkenny, Carlow, Wexford, Waterford \| 192 km (119 mi) \| 3,067 km²
3 \| River Suir^b \| Tipperary, Waterford, Kilkenny, Wexford \| 184 km (114.5 mi) \| 3,610 km²
4 \| River Blackwater (Munster) \| Kerry, Cork, Waterford \| 168 km (104.5 mi) \| 3,324 km²
5 \| River Bann (including flow through L. Neagh)^c \| Down, Armagh, Antrim, Londonderry \| 159 km (99 mi) \| 5,808 km²Ordnance Survey of Ireland: Rivers and their Catchment Basins 1958 (Table of Reference)
6 \| River Nore^b \| Tipperary, Laois, Kilkenny \| 140 km (87 mi) \| 2,530 km²
7 \| River Suck (Shannon) \| Roscommon, Galway \| 133 km (83 mi) \| 1,600 km²Dublin Marine Institute 1998: Studies of Irish Rivers and Lakes: Moriarty, Christopher
8 \| River Liffey \| Wicklow, Kildare, Dublin \| 132 km (82 mi) \| 1,256 km²
9 \| River Erne \| Cavan, Fermanagh, Donegal \| 129 km (80 mi) \| 4,372 km²
10 \| River Foyle (including Rivers Mourne, Strule & Camowen) \| Tyrone, Londonderry, Donegal \| 129 km (80 mi) \| 2,925 km²
11 \| River Slaney \| Wicklow, Carlow, Wexford \| 117 km (73 mi) \| 1,762 km²
12 \| River Boyne \| Kildare, Offaly, Meath, Louth \| 113 km (70 mi) \| 2,695 km²
13 \| River Moy \| Sligo, Mayo \| 101 km (62.5 mi) \| 2,086 km²
14 \| River Clare (Corrib)^d \| Mayo, Roscommon, Galway \| 93 km (58 mi) \|1,108 km²{{Cite web \|url=http://www.westcframstudy.ie/media/601/2011s5232_western_cfram_uom30_inception_report_v3.0.pdf \|title=Western CFRAM Units of Management \|access-date=2014-10-30 \|archive-date=2014-11-02 \|archive-url=https://web.archive.org/web/20141102052924/http://www.westcframstudy.ie/media/601/2011s5232_western_cfram_uom30_inception_report_v3.0.pdf \|url-status=live }}
15 \| River Blackwater (Ulster) (Bann) ^c \| Tyrone, Monaghan, Armagh \| 92 km (57 mi) \| 1,507 km²
16t \| River Inny (Shannon) \| Cavan, Longford, Westmeath \| 89 km (55.5 mi) \| 1,254 km²
16t \| River Lee \| Cork \| 89 km (55.5 mi) \| 1,253 km²
18 \| River Lagan \| Down, Antrim \| 86 km (53.5 mi) \| 565 km²
19 \| River Brosna (Shannon) \| Westmeath, Offaly \| 79 km (49 mi) \| 1,248 km²
20 \| River Laune (includes Lough Leane and River Flesk) \| Kerry \| 76 km (47.25 mi) \| 829 km²
21 \| River Feale (Shannon) \| Cork, Limerick, Kerry \| 74 km (46 mi) \| 1,170 km²{{cite web\|url=http://europeaneel.files.wordpress.com/2014/02/chapter-2-study-area.pdf\|title=Biology and Management of European Eel p.29\|website=wordpress.com\|access-date=2014-10-30\|archive-date=2014-09-07\|archive-url=https://web.archive.org/web/20140907173249/http://europeaneel.files.wordpress.com/2014/02/chapter-2-study-area.pdf\|url-status=live}}
22 \| River Bandon \| Cork \| 72 km (45 mi) \| 608 km²
23 \| River Blackwater (Boyne) \| Cavan, Meath \| 68 km (42.5 mi) \| 733 km²
24 \| River Annalee (Erne) \| Monaghan, Cavan \| 66.8 km (41.75 mi) \| 522 km²
25 \| River Bride (M. Blackwater) \| Cork, Waterford \| 64 km (40 mi) \| 419 km²
26 \| Boyle River (including Lung River) (Shannon) \| Mayo, Sligo, Roscommon \| 64 km (40 mi) \| 725 km²
27 \| River Deel (Shannon) \| Cork, Limerick \| 63.2 km (39.5 mi) \| 481 km²
28 \| River Robe (Corrib)^d \| Mayo \| 62.8 km (39.25 mi) \| 320 km²
29 \| River Finn (County Donegal) (Foyle) \| Donegal, Tyrone \| 62.8 km (39.25 mi) \| 505 km²
30 \| River Maigue (Shannon) \| Cork, Limerick \| 62 km (38.75 mi) \| 1,000 km²
31 \| Fane River \| Monaghan, Armagh, Louth \| 61.2 km (38.25 mi) \| 350 km²
32 \| Ballisodare River \| Sligo \| 60.8 km (38 mi) \| 650 km²
33 \| River Dee (Louth) \| Cavan, Meath, Louth \| 60.4 km (37.75 mi) \| 392 km²
34 \| River Fergus (Shannon) \| Clare \| 58.4 km (36.5 mi) \| 1,043 km²
35 \| Little Brosna River (Shannon) \| Offaly, Tipperary \| 57.6 km (36 mi) \| 662 km²
36 \| Mulkear River (including Bilboa River) (Shannon) \| Tipperary, Limerick \| 55.9 km (34.75 mi) \| 650 km²
37 \| River Glyde (Co. Louth) \| Cavan, Meath, Louth \| 55.9 km (34.75 mi) \| 348 km²

class="wikitable"

! River

! Counties

! Length

! Basin Area

| River Shannon (including estuary and flow through lakes)^a

| Cavan, Leitrim, Roscommon, Longford, Westmeath, Galway, Offaly,

Tipperary, Clare, Limerick, Kerry

| 360 km (224 mi)

| 16,800 km²Comprehensive study of Riverine Inputs

Details of hydrometric stations, sampling stations Page 17, Table 2 [http://www.epa.ie/pubs/reports/water/flows/Hydrometric%20Data%20for%20the%202009%20OSPAR%20Report.pdf] {{Webarchive|url=https://web.archive.org/web/20170805021614/http://www.epa.ie/pubs/reports/water/flows/Hydrometric%20Data%20for%20the%202009%20OSPAR%20Report.pdf |date=2017-08-05 }}

| River Barrow^b

| Laois, Kildare, Kilkenny, Carlow,

Wexford, Waterford

| 192 km (119 mi)

| 3,067 km²

| River Suir^b

| Tipperary, Waterford, Kilkenny, Wexford

| 184 km (114.5 mi)

| 3,610 km²

| River Blackwater (Munster)

| Kerry, Cork, Waterford

| 168 km (104.5 mi)

| 3,324 km²

| River Bann (including flow through L. Neagh)^c

| Down, Armagh, Antrim, Londonderry

| 159 km (99 mi)

| 5,808 km²Ordnance Survey of Ireland: Rivers and their Catchment Basins 1958 (Table of Reference)

| River Nore^b

| Tipperary, Laois, Kilkenny

| 140 km (87 mi)

| 2,530 km²

| River Suck (Shannon)

| Roscommon, Galway

| 133 km (83 mi)

| 1,600 km²Dublin Marine Institute 1998: Studies of Irish Rivers and Lakes: Moriarty, Christopher

| River Liffey

| Wicklow, Kildare, Dublin

| 132 km (82 mi)

| 1,256 km²

| River Erne

| Cavan, Fermanagh, Donegal

| 129 km (80 mi)

| 4,372 km²

| River Foyle (including Rivers Mourne, Strule & Camowen)

| Tyrone, Londonderry, Donegal

| 129 km (80 mi)

| 2,925 km²

| River Slaney

| Wicklow, Carlow, Wexford

| 117 km (73 mi)

| 1,762 km²

| River Boyne

| Kildare, Offaly, Meath, Louth

| 113 km (70 mi)

| 2,695 km²

| River Moy

| Sligo, Mayo

| 101 km (62.5 mi)

| 2,086 km²

| River Clare (Corrib)^d

| Mayo, Roscommon, Galway

| 93 km (58 mi)

|1,108 km²{{Cite web |url=http://www.westcframstudy.ie/media/601/2011s5232_western_cfram_uom30_inception_report_v3.0.pdf |title=Western CFRAM Units of Management |access-date=2014-10-30 |archive-date=2014-11-02 |archive-url=https://web.archive.org/web/20141102052924/http://www.westcframstudy.ie/media/601/2011s5232_western_cfram_uom30_inception_report_v3.0.pdf |url-status=live }}

| River Blackwater (Ulster) (Bann) ^c

| Tyrone, Monaghan, Armagh

| 92 km (57 mi)

| 1,507 km²

16t

| River Inny (Shannon)

| Cavan, Longford, Westmeath

| 89 km (55.5 mi)

| 1,254 km²

16t

| River Lee

| Cork

| 89 km (55.5 mi)

| 1,253 km²

| River Lagan

| Down, Antrim

| 86 km (53.5 mi)

| 565 km²

| River Brosna (Shannon)

| Westmeath, Offaly

| 79 km (49 mi)

| 1,248 km²

| River Laune (includes Lough Leane and River Flesk)

| Kerry

| 76 km (47.25 mi)

| 829 km²

| River Feale (Shannon)

| Cork, Limerick, Kerry

| 74 km (46 mi)

| 1,170 km²{{cite web|url=http://europeaneel.files.wordpress.com/2014/02/chapter-2-study-area.pdf|title=Biology and Management of European Eel p.29|website=wordpress.com|access-date=2014-10-30|archive-date=2014-09-07|archive-url=https://web.archive.org/web/20140907173249/http://europeaneel.files.wordpress.com/2014/02/chapter-2-study-area.pdf|url-status=live}}

| River Bandon

| Cork

| 72 km (45 mi)

| 608 km²

| River Blackwater (Boyne)

| Cavan, Meath

| 68 km (42.5 mi)

| 733 km²

| River Annalee (Erne)

| Monaghan, Cavan

| 66.8 km (41.75 mi)

| 522 km²

| River Bride (M. Blackwater)

| Cork, Waterford

| 64 km (40 mi)

| 419 km²

| Boyle River (including Lung River) (Shannon)

| Mayo, Sligo, Roscommon

| 64 km (40 mi)

| 725 km²

| River Deel (Shannon)

| Cork, Limerick

| 63.2 km (39.5 mi)

| 481 km²

| River Robe (Corrib)^d

| Mayo

| 62.8 km (39.25 mi)

| 320 km²

| River Finn (County Donegal) (Foyle)

| Donegal, Tyrone

| 62.8 km (39.25 mi)

| 505 km²

| River Maigue (Shannon)

| Cork, Limerick

| 62 km (38.75 mi)

| 1,000 km²

| Fane River

| Monaghan, Armagh, Louth

| 61.2 km (38.25 mi)

| 350 km²

| Ballisodare River

| Sligo

| 60.8 km (38 mi)

| 650 km²

| River Dee (Louth)

| Cavan, Meath, Louth

| 60.4 km (37.75 mi)

| 392 km²

| River Fergus (Shannon)

| Clare

| 58.4 km (36.5 mi)

| 1,043 km²

| Little Brosna River (Shannon)

| Offaly, Tipperary

| 57.6 km (36 mi)

| 662 km²

| Mulkear River (including Bilboa River) (Shannon)

| Tipperary, Limerick

| 55.9 km (34.75 mi)

| 650 km²

| River Glyde (Co. Louth)

| Cavan, Meath, Louth

| 55.9 km (34.75 mi)

| 348 km²

TABLE 1

The length of the River Shannon from the Shannon Pot to Limerick City is {{convert|258|km}} with a basin area of 11,700 km².
The River Shannon's overall length (to Loop Head), using the Owenmore River (County Cavan) as source, is {{convert|372|km}},Shannon River Basin: Furthest sourceShannon River Basin#Furthest sources{{circular reference|date=October 2020}} 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 {{convert|392.1|km}},Boyle River (Ireland){{circular reference|date=October 2020}} 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 {{convert|63.5|mi|km|order=flip|adj=on}} tidal estuary from its total length of {{convert|224|mi|km|order=flip}}, if one also excludes the lakes (L. Derg {{convert|24|mi|km|order=flip}}, L. Ree {{convert|18|mi|km|order=flip}}, L. Allen {{convert|7|mi|km|order=flip}}{{cite web|url=http://www.askaboutireland.ie|title=Home|website=askaboutireland.ie|access-date=2021-09-24|archive-date=2020-01-10|archive-url=https://web.archive.org/web/20200110054610/http://askaboutireland.ie/|url-status=live}} plus L. Boderg, L. Bofin, L. Forbes, L. Corry) from the Shannon's freshwater flow of {{convert|160.5|mi|km|order=flip}}, the Shannon as a freshwater river is only about {{convert|100|mi|km|order=flip|sigfig=2}} long.

The total basin area of the Three Sisters (Barrow, Nore and Suir) is 9,207 km².

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),Ulster BlackwaterRiver Blackwater, Northern Ireland{{circular reference|date=October 2020}} surpassed, in Ireland, only by the Shannon and Barrow rivers. This is the longest stream flow (source to sea) in Ulster.{{Cite web |url=http://ccm.jrc.ec.europa.eu/documents/ccm2mainrivers_map_100dpi.pdf |title=European Commission Rivers Map |access-date=2014-11-16 |archive-date=2015-08-19 |archive-url=https://web.archive.org/web/20150819002433/http://ccm.jrc.ec.europa.eu/documents/ccm2mainrivers_map_100dpi.pdf |url-status=live }}

The total basin area of the 6 km River Corrib is 3,138 km²
The total length of the River Robe's journey from its source near Ballyhaunis to Galway Bay (via Lough Mask, Cong canal and river, Lough Corrib and River Corrib) is {{convert|72|mi|km}}.River Robe{{circular reference|date=October 2020}} This is the longest stream flow (source to sea) within the Corrib Basin.

Largest Irish Rivers (by flow)

class="wikitable"
! River (River Basin) ! Mean Discharge (m³/s)
1 \| River Shannon^a \| 209 (300)
2 \| River Corrib \| 105.5
3 \| River Bann{{cite web\|url=http://nrfa.ceh.ac.uk/data/station/info/203040\|title=- National River Flow Archive\|website=ceh.ac.uk\|access-date=2016-01-15\|archive-date=2016-03-04\|archive-url=https://web.archive.org/web/20160304112003/http://nrfa.ceh.ac.uk/data/station/info/203040\|url-status=live}}^b \| 92 (102.5)
4 \| River Foyle{{cite web\|url=http://www.ecowin.org/smile/loughfoyle.htm\|title=SMILE – Sustainable Mariculture in northern Irish Lough Ecosystems\|website=ecowin.org\|access-date=2014-10-19\|archive-date=2013-11-12\|archive-url=https://web.archive.org/web/20131112090534/http://www.ecowin.org/smile/loughfoyle.htm\|url-status=live}} \| 90
5 \| River Blackwater (Munster) \| 87.5
6 \| River Erne \| 85
7 \| River Suir^c \| 76
8 \| River Moy \| 63
9 \| River Barrow^c \| 46.5
10 \| River Laune \| 43
11 \| River Nore^c \| 42
12 \| River Lee \| 40
13 \| River Slaney \| 39
14 \| River Boyne \| 38.5
15 \| River Cong{{cite web \|url=http://www.irishhydro.com/rivers.htm \|title=Irish Hydro Power Association \|access-date=2014-11-09 \|url-status=dead \|archive-url=https://web.archive.org/web/20141105171607/http://irishhydro.com/rivers.htm \|archive-date=2014-11-05 }} (Corrib) \| 37.6
16 \| River FealeLong-term effects of hydropower installations and associated river regulation on River Shannon eel populations: mitigation and management [http://www.nuigalway.ie/faculties_departments/zoology/mccarthy/documents/mccarthy_et_al_2008.pdf] {{Webarchive\|url=https://web.archive.org/web/20160304191259/http://www.nuigalway.ie/faculties_departments/zoology/mccarthy/documents/mccarthy_et_al_2008.pdf \|date=2016-03-04 }} (Shannon) \| 34.6
17 \| River Fergus (Shannon) \| 25.7
18 \| River ClareRoyal Irish Academy, Atlas of Ireland (Royal Irish Academy, Dublin, 1979) Hydrology P. 23 – Rivers: Mean Discharge (Corrib) \| 22.9
19 \| River Suck (Shannon) \| 22.2
20 \| River Avoca \| 22
21 \| River Bandon \| 21.5
22 \| River Mourne (Foyle) \| 21.1
23 \| River Blackwater (Ulster) (Bann) \| 19.7
24 \| River Ballisodare \| 18.25
25 \| River Inny (Shannon) \| 18.4
26 \| River Liffey \| 17
27 \| River Derg (Foyle) \| 16.2
28 \| River Maigue (Shannon) \| 15.6
29 \| River Main (Bann) \| 15.4
30 \| River Blackwater (Boyne) (Boyne) \| 15.08
31 \| Aille River (Connacht){{cite web \|url=http://www.opw.ie/hydro/index.asp?mpg=main.asp \|title=OPW \|access-date=2014-06-20 \|url-status=dead \|archive-url=https://web.archive.org/web/20150924061249/http://www.opw.ie/hydro/index.asp?mpg=main.asp \|archive-date=2015-09-24 }} (Corrib) \| 15.0
32 \| Owenmore River (County Mayo) \| 14.7
33 \| Boyle River (Shannon) \| 13.57
34 \| River Deel (Shannon) \| 12.56
35 \| Mulkear River (Shannon) \| 12.55

class="wikitable"

! River

(River Basin)

! Mean Discharge

(m³/s)

| River Shannon^a

| 209 (300)

| River Corrib

| 105.5

| River Bann{{cite web|url=http://nrfa.ceh.ac.uk/data/station/info/203040|title=- National River Flow Archive|website=ceh.ac.uk|access-date=2016-01-15|archive-date=2016-03-04|archive-url=https://web.archive.org/web/20160304112003/http://nrfa.ceh.ac.uk/data/station/info/203040|url-status=live}}^b

| 92 (102.5)

| River Foyle{{cite web|url=http://www.ecowin.org/smile/loughfoyle.htm|title=SMILE – Sustainable Mariculture in northern Irish Lough Ecosystems|website=ecowin.org|access-date=2014-10-19|archive-date=2013-11-12|archive-url=https://web.archive.org/web/20131112090534/http://www.ecowin.org/smile/loughfoyle.htm|url-status=live}}

| 90

| River Blackwater (Munster)

| 87.5

| River Erne

| 85

| River Suir^c

| 76

| River Moy

| 63

| River Barrow^c

| 46.5

| River Laune

| 43

| River Nore^c

| 42

| River Lee

| 40

| River Slaney

| 39

| River Boyne

| 38.5

| River Cong{{cite web |url=http://www.irishhydro.com/rivers.htm |title=Irish Hydro Power Association |access-date=2014-11-09 |url-status=dead |archive-url=https://web.archive.org/web/20141105171607/http://irishhydro.com/rivers.htm |archive-date=2014-11-05 }} (Corrib)

| 37.6

| River FealeLong-term effects of hydropower installations and associated river regulation on River Shannon eel populations: mitigation and management [http://www.nuigalway.ie/faculties_departments/zoology/mccarthy/documents/mccarthy_et_al_2008.pdf] {{Webarchive|url=https://web.archive.org/web/20160304191259/http://www.nuigalway.ie/faculties_departments/zoology/mccarthy/documents/mccarthy_et_al_2008.pdf |date=2016-03-04 }} (Shannon)

| 34.6

| River Fergus (Shannon)

| 25.7

| River ClareRoyal Irish Academy, Atlas of Ireland (Royal Irish Academy, Dublin, 1979) Hydrology P. 23 – Rivers: Mean Discharge (Corrib)

| 22.9

| River Suck (Shannon)

| 22.2

| River Avoca

| 22

| River Bandon

| 21.5

| River Mourne (Foyle)

| 21.1

| River Blackwater (Ulster) (Bann)

| 19.7

| River Ballisodare

| 18.25

| River Inny (Shannon)

| 18.4

| River Liffey

| 17

| River Derg (Foyle)

| 16.2

| River Maigue (Shannon)

| 15.6

| River Main (Bann)

| 15.4

| River Blackwater (Boyne) (Boyne)

| 15.08

| Aille River (Connacht){{cite web |url=http://www.opw.ie/hydro/index.asp?mpg=main.asp |title=OPW |access-date=2014-06-20 |url-status=dead |archive-url=https://web.archive.org/web/20150924061249/http://www.opw.ie/hydro/index.asp?mpg=main.asp |archive-date=2015-09-24 }} (Corrib)

| 15.0

| Owenmore River (County Mayo)

| 14.7

| Boyle River (Shannon)

| 13.57

| River Deel (Shannon)

| 12.56

| Mulkear River (Shannon)

| 12.55

TABLE 2

^a The River Shannon's 209 m³/s is to Limerick City (Catchment area: 11,700 km²). If the discharges from all of the rivers and streams into the Shannon Estuary (including the rivers Feale 34.6m³/s, Maigue 15.6m³/s, Fergus 25.7m³/s, and Deel 7.4m³/s){{cite web|url=http://www.housing.gov.ie/|title=Department of Housing, Planning and Local Government|website=Department of Housing, Planning and Local Government|access-date=2018-05-27|archive-date=2018-05-27|archive-url=https://web.archive.org/web/20180527175556/https://www.housing.gov.ie/|url-status=live}} are added to the discharge at Limerick giving a total catchment of 16,865 km², the total discharge of the River Shannon at its mouth at Loop Head reaches 300 m³/s

^b The River Bann's 92 m³/s is to Movanagher Gauging station (Basin area 5209.8 km²).{{cite web|url=http://nrfa.ceh.ac.uk/data/search|title=Search for gauging stations|date=5 October 2015|website=ceh.ac.uk|access-date=15 January 2016|archive-date=28 January 2016|archive-url=https://web.archive.org/web/20160128180942/http://nrfa.ceh.ac.uk/data/search|url-status=live}} The 102.5 m³/s is based on the total basin area of 5808 km²

^c The Three Sisters (Barrow, Nore & Suir) total flow into Waterford Harbour is 154 m³/s and the combined flow of the Barrow and Nore rivers is 86 m³/s before joining the river Suir near Waterford City.

Rivers in Ulster

With length in miles (and km)

River Crana {{convert|12|mi|km}}
River Lennon (Leannan) {{convert|28.5|mi|km}}
River Foyle {{convert|80|mi|km}} (total) – that portion named "Foyle" forms the border between the Republic of Ireland and Northern Ireland
Burn Dale (also known as the River Deele) – rises in and flows through the east of County Donegal – {{convert|25.5|mi|km}}
River Finn (Foyle tributary) – rises and flows mainly through County Donegal, Republic of Ireland {{convert|39.25|mi|km}}
River Reelan {{convert|10.5|mi|km}}
River Mourne
River Derg {{convert|28|mi|km}}
Mournebeg River {{convert|17.25|mi|km}}
Owenkillew River {{convert|30|mi|km}}
Glenelly River {{convert|22|mi|km}}
Owenreagh River {{convert|14|mi|km}}
River Strule {{convert|14.25|mi|km}}
Camowen River {{convert|28|mi|km}}
Drumragh River {{convert|20.5|mi|km}}
Fairy Water {{convert|17.75|mi|km}}
Drumquin River {{convert|9.5|mi|km}}
Routing Burn {{convert|13|mi|km}}
Owenreagh River {{convert|16.5|mi|km}}
Cloghfin River {{convert|14|mi|km}}
River Faughan {{convert|29.5|mi|km}}
River Roe {{convert|34.25|mi|km}}
River Bann {{convert|90|mi|km}}{{cite web|url=https://archive.org/details/notesonriverbas00willgoog|title=Notes on river basins|last=Robert A. Williams|date=27 May 1872|via=Internet Archive}}
River Blackwater {{convert|56.7|mi|km}}
River Callan {{convert|26.5|mi|km}}
Oona Water {{convert|17.75|mi|km}}
River Torrent {{convert|25|mi|km}}
River Tall {{convert|22.5|mi|km}}
River Blackwater (Northern) {{convert|35.5|mi|km}}
River Main {{convert|34|mi|km}}
Six Mile Water {{convert|21|mi|km}}
Ballinderry River {{convert|29|mi|km}}
Moyola River {{convert|31|mi|km}}
Clady River
Knockoneil River
Grillagh River
Agivey River
Cusher River {{convert|25|mi|km}}
Clady River
Altmore River
Cromore Burn
Devlin River
Cronaniv Burn
River Dun
River Bush {{convert|33.5|mi|km}}
River Erne {{convert|80|mi|km}} (See Atlantic rivers)
River Lagan {{convert|53.5|mi|km}}
River Farset
Blackstaff River
River Quoile {{convert|27.5|mi|km}}
Clanrye (Newry) River {{convert|27|mi|km}}

Rivers in the Republic of Ireland, flowing into the Irish Sea

With length in miles (and km)

File:River Dodder Rathgar snow.JPG]]

Castletown River {{convert|28|mi|km}}
Cully Water {{convert|14.5|mi|km}}
Kilcurry River {{convert|11.5|mi|km}}
River Fane {{convert|38.25|mi|km}}
River Glyde {{convert|34.75|mi|km}}
River Dee, County Louth {{convert|37.75|mi|km}}
River Boyne {{convert|70|mi|km}}
River Owenroe (Moynalty) {{convert|23.5|mi|km}}
River Blackwater, Kildare and Meath {{convert|20|mi|km}}
River Blackwater, Cavan and Meath {{convert|42.5|mi|km}}
Moynalty River {{convert|23.5|mi|km}}
Athboy River {{convert|22.5|mi|km}}
Stonestown River {{convert|20|mi|km}}
Dale River {{convert|22.5|mi|km}}
Kinnegad River {{convert|19.5|mi|km}}
Yellow River {{convert|16|mi|km}}
River Tolka {{convert|20.75|mi|km}}
River Liffey {{convert|82|mi|km}}
Kings River {{convert|16.5|mi|km}}
Morell River {{convert|7|mi|km}}
River Rye {{convert|15.5|mi|km}}
Lyreen River
River Camac
River Poddle
River Dodder {{convert|17|mi|km}}
Owendoher River
River Dargle {{convert|12.5|mi|km}}
River Vartry {{convert|20.5|mi|km}}
River Avoca (Ovoca) {{convert|9.5|mi|km}}
River Avonmore {{convert|22.75|mi|km}}
River Avonbeg {{convert|16.5|mi|km}}
Aughrim River {{convert|5.75|mi|km}}
River Slaney {{convert|73|mi|km}}
Derreen River {{convert|25|mi|km}}
River Derry {{convert|21|mi|km}}
River Bann (Wexford) {{convert|26|mi|km}}

Rivers in the Republic of Ireland, flowing into the Celtic Sea

With length in miles (and km)

File:RiverGoul1876-2.jpg]]

File:The Gearagh 2.jpg ]]

River Barrow {{convert|119.5|mi|km}}
Philipstown River {{convert|15.75|mi|km}}
Figile River {{convert|20.75|mi|km}}
River Slate {{convert|17|mi|km}}
River Triogue {{convert|16.75|mi|km}}
Finnery River
Tully Stream {{convert|8|mi|km}}
River Greese {{convert|22|mi|km}}
Burren River {{convert|24|mi|km}}
River Nore {{convert|87.75|mi|km}}
River Erkina {{convert|22.5|mi|km}}
River Goul {{convert|23.25|mi|km}}
River Dinan {{convert|24.75|mi|km}}
Kings River {{convert|28.75|mi|km}}
River Suir {{convert|114.75|mi|km}}
River Drish {{convert|19.75|mi|km}}
River Clodiagh {{convert|20.5|mi|km}}
Aherlow River {{convert|27|mi|km}}
River Ara {{convert|18.25|mi|km}}
River Anner {{convert|23.5|mi|km}}
John's River
River Tar {{convert|18.75|mi|km}}
River Duag
River Colligan {{convert|15|mi|km}}
River Mahon {{convert|15.75|mi|km}}
River Blackwater, Cork {{convert|104.5|mi|km}}
River Owentaraglen {{convert|17.25|mi|km}}
River Allow {{convert|22.75|mi|km}}
River Funshion {{convert|34.75|mi|km}}
River Finisk {{convert|17.5|mi|km}}
River Awbeg {{convert|31.75|mi|km}}
River Dalua {{convert|15.5|mi|km}}
River Bride {{convert|40|mi|km}}
River Womanagh {{convert|19|mi|km}}
Owenacurra River {{convert|13.25|mi|km}}
Glashaboy River {{convert|15|mi|km}}
River Lee {{convert|55.5|mi|km}}
River Sullane {{convert|22.5|mi|km}}
Shournagh River {{convert|17|mi|km}}
River Bride {{convert|21|mi|km}}
River Bandon {{convert|45|mi|km}}
River Ilen {{convert|20.75|mi|km}}
Argideen River {{convert|17.75|mi|km}}
River Owenabue {{convert|20.5|mi|km}}

Rivers in the Republic of Ireland, flowing into the Atlantic Ocean

With length in miles (and km)

File:Shannonbridge.jpg ]]

File:Annalee river, Butlersbridge, Cavan Aug 2003.jpg ]]

Roughty River {{convert|16.75|mi|km}} (flowing into Kenmare Bay) at Kenmare
River Laune {{convert|14|mi|km}}
River Flesk {{convert|28.25|mi|km}}
Gweestin River {{convert|13.75|mi|km}}
Caragh River {{convert|14|mi|km}}
River Inny (Kerry) {{convert|16.5|mi|km}}
Cummeragh River {{convert|9.5|mi|km}}
River Ferta
River Carrowbeg
River Maine {{convert|26.5|mi|km}}
Brown Flesk {{convert|19.75|mi|km}}
River Feale {{convert|46|mi|km}}
River Galey {{convert|27|mi|km}}
Allaghaun River {{convert|13.75|mi|km}}
Smerlagh (Smaorlagh) River {{convert|15.5|mi|km}}
Shanow River {{convert|15.25|mi|km}}
River Shannon {{convert|224|mi|km}}{{cite web|url=http://www.osi.ie/Education/Secondary-Schools/Teacher-Resources/Facts-(1).aspx|title=Secondary Schools Teacher Resources – Ordnance Survey Ireland|website=osi.ie|access-date=2018-05-27|archive-date=2015-03-27|archive-url=https://web.archive.org/web/20150327033004/http://osi.ie/Education/Secondary-Schools/Teacher-Resources/Facts-(1).aspx|url-status=live}}
Owenmore River (County Cavan) {{convert|9|mi|km}}
Arigna River {{convert|14|mi|km}}
Feorish River {{convert|19.5|mi|km}}
River Brosna {{convert|49.25|mi|km}}
Clodiagh River {{convert|24.25|mi|km}}
Tullamore River {{convert|12.5|mi|km}}
Silver River {{convert|24|mi|km}}
Bunowen River {{convert|16|mi|km}}
Little Brosna River {{convert|36|mi|km}}
River Camcor {{convert|16.25|mi|km}}
Ballyfinboy River {{convert|20.75|mi|km}}
Nenagh River {{convert|28.5|mi|km}}
Ollatrim River {{convert|18.5|mi|km}}
River Inny {{convert|55.5|mi|km}}
River Tang {{convert|15.5|mi|km}}
River Suck {{convert|82.5|mi|km}}
River Shiven {{convert|21.25|mi|km}}
Boyle River (Total) {{convert|40|mi|km}}
Boyle River {{convert|13.75|mi|km}}
Lung River {{convert|17.75|mi|km}}
Breedoge River {{convert|11.75|mi|km}}
Camlin River {{convert|27|mi|km}}
Mulkear River {{convert|15.25|mi|km}}
Bilboa River {{convert|19.5|mi|km}}
River Deel {{convert|39.5|mi|km}}
River Maigue {{convert|38.75|mi|km}}
River Fergus {{convert|36.5|mi|km}}
River Corrib {{convert|5.75|mi|km}}
Cregg River (via Lough Corrib)
River Clare (via Lough Corrib) {{convert|57.75|mi|km}}
Grange River {{convert|17|mi|km}}
Abbert River {{convert|25.25|mi|km}}
River Black {{convert|17.75|mi|km}}
Aille River (Connacht) {{convert|18.5|mi|km}}
Baelanabrack River {{convert|11|mi|km}}
River Robe (via Loughs Mask and Corrib) {{convert|39.25|mi|km}}
River Clarin {{convert|19.75|mi|km}}
Clady River
Cromore Burn
Cronaniv Burn
Kilcolgan River {{convert|9.5|mi|km}}
Dooyertha River {{convert|23.75|mi|km}}
Kinvarra River
River Doonbeg {{convert|25.75|mi|km}}
River Inagh {{convert|22.75|mi|km}}
Carrowbeg River {{convert|10|mi|km}}
Bunowen River {{convert|13.25|mi|km}}
River Erriff {{convert|20.5|mi|km}}
Owenglin River {{convert|11.5|mi|km}}
Ballynahinch River {{convert|18.5|mi|km}}
Cashla River {{convert|13.25|mi|km}}
Owenboliska River {{convert|13.25|mi|km}}
Glenamoy River {{convert|13.75|mi|km}}
Cloonaghmore River {{convert|19.75|mi|km}}
Owenmore River (County Mayo) (incl. Carrowmore Lake) {{convert|29.25|mi|km}}
Owenduff River {{convert|17.75|mi|km}}
Newport River {{convert|18.25|mi|km}}
River Moy {{convert|62.5|mi|km}}
Deel River {{convert|28|mi|km}}
Manulla River {{convert|19|mi|km}}
Gweestion River {{convert|23|mi|km}}
Owengarve River {{convert|16|mi|km}}
River Glore {{convert|17|mi|km}}
Easky River, County Sligo {{convert|18.5|mi|km}}
Ballisodare River {{convert|5.5|mi|km}}
Owenmore River (County Sligo) {{convert|32.5|mi|km}}
Owenbeg River {{convert|14.75|mi|km}}
Unshin River {{convert|14.25|mi|km}}
River Garavogue (including L. Gill and R. Bonnet) {{convert|31.5|mi|km}}
River Erne {{convert|80|mi|km}} – mainly formed by Upper and Lower Lough Erne in County Fermanagh, Northern Ireland
River Annalee {{convert|41.75|mi|km}}
River Cladagh (including Arney) {{convert|22|mi|km}}
Sillees River {{convert|33|mi|km}}
River Ballinamallard {{convert|16|mi|km}}
River Swanlinbar {{convert|18|mi|km}}
River Woodford {{convert|18.5|mi|km}}
Dromore River {{convert|23.25|mi|km}}
Yellow River {{convert|17.25|mi|km}}
Colebrooke River {{convert|35|mi|km}}
Finn River (County Fermanagh and County Monaghan) {{convert|31.5|mi|km}}
Owenea River {{convert|16.25|mi|km}}
Oily River {{convert|13|mi|km}}
Bungosteen River {{convert|15.5|mi|km}}
Ballintra River {{convert|14|mi|km}}
River Eske {{convert|15.25|mi|km}}
Drumenny Burn
River Gweebarra {{convert|19.75|mi|km}}
River Swilly {{convert|25.5|mi|km}}

References

External links

[http://www.irishwhitewater.com/river_guide/index.php Irish whitewater River Guides]

Ireland

Category:Drainage basins of Ireland

Rivers of Ireland

Longest Irish Rivers (with Basin areas)

Largest Irish Rivers (by flow)

Rivers in Ulster

Rivers in the Republic of Ireland, flowing into the Irish Sea

Rivers in the Republic of Ireland, flowing into the Celtic Sea

Rivers in the Republic of Ireland, flowing into the Atlantic Ocean

See also

References

External links