Lough Derg, historically Lough Dergart (Irish: Loch Deirgeirt), is a freshwater lake in the Shannon River Basin, Ireland. It is the third-biggest on the island of Ireland (after Lough Neagh and Lough Corrib).
Loch Na Fooey (Irish: Loch na Fuaiche, meaning "lake of the fissure"), also Loch Nafooey or Lough Nafooey, is a rectangular shaped glacial lake in County Galway, Ireland. Part of the north-eastern shore lies along the border to County Mayo. The closest village is Finny, County Mayo with the Galway village of Leenaun approximately 11 km distant.
Lough Feeagh (Irish: Loch Fíoch) is a freshwater lake in County Mayo, Ireland. It is the largest of the lakes in the Burrishoole catchment, which consists of seven lakes and interconnecting rivers and streams. Lough Feeagh is one of the lakes observed and studied by the Global Lake Ecological Observatory Network (GLEON).
Lough Gara (Irish: Loch Uí Ghadhra) is a lake in Counties Sligo and Roscommon, Ireland. It is an Important Bird Area protecting 1,788 ha of which most (1,742 ha) is covered by a Ramsar Site.
Lough Finn (Irish: Loch Finne) is a freshwater lough (lake) in County Donegal, Ireland. The lough, along with its neighbouring village of Fintown, was named after a mythological woman, Finngeal, who drowned in the lake after attempting to save her wounded brother Feargamhain. The water from Lough Finn outflows into the River Finn.
St. John's Lough (Irish: Loch Eoin), also known as St. John's Lake, is an irregularly shaped freshwater lake located in south County Leitrim, in northwest of Ireland. The lake forms part of the wider Shannon–Erne Waterway tourist attraction. The ecology of John's Lough, and the Shannon-system, is threatened by pollution and invasive species such as curly waterweed, zebra mussel, and freshwater clam.
Kylemore Lough (Irish: Loch na Coille Móire) is a freshwater lake in the west of Ireland. It is located in the Connemara area of County Galway.
Lough Allua (Irish: Locha Lua) is a freshwater lake in County Cork with an area of 1.36 km² located beside Inchigeelagh and forms part of the River Lee.
Lough Skean is a freshwater lake in the northwest of Ireland. It is located mostly in north County Roscommon with a smaller part in County Sligo.
Muckross Lake (Irish: Loch Mhucrois), also called Middle Lake or The Torc, is a lake in Killarney National Park, County Kerry, Ireland. It is one of the three famous Lakes of Killarney, along with Lough Leane and Upper Lake. It is Ireland's deepest lake, reaching to 75 metres (246 ft) in parts.
Lough Beagh (Irish: Loch Ghleann Bheatha), also known as Lough Veagh, is a freshwater lake in the northwest of Ireland. It is located in north County Donegal and is part of Glenveagh National Park.
Kindrum Lough (Irish: Loch Chionn Droma) is a freshwater lake in the northwest of Ireland. It is located in north County Donegal on the Fanad Peninsula.
Easky Lough (Irish: Loch Iascaí), also known as Easkey Lough or Lough Easky, is a freshwater lake in the northwest of Ireland. It is located in west County Sligo in the Ox Mountains.
Glencar Lough (Irish: Loch Ghleann an Chairthe, meaning "lake of the glen of the pillar stone"), locally known as Glencar Lake, is a freshwater lake in the northwest of Ireland. It covers an area of 1.15 square kilometres (284.2 acres) and lies mostly in County Leitrim with a smaller part in County Sligo. Glencar Waterfall is located near the lake's north shore on the Leitrim side.
Glenade Lough (Irish: Loch Ghleann Éada, meaning "lake of the glen of jealousy"), locally known as Glenade Lake, is a freshwater lake in the northwest of Ireland. It is located in north County Leitrim in the Glenade Valley.
Garadice Lough (Irish: Loch Guth Ard Deas (meaning The South Lake of the High Voice), also known as Garadice Lake or Lough Garadice, is a freshwater lake in County Leitrim, Ireland. It is located in the south of the county and now forms part of the Shannon–Erne Waterway.
Belhavel Lough (Irish: Claonloch, meaning "crooked lake") is a freshwater lake in the northwest of Ireland. It is located in north County Leitrim near the village of Killarga.
Gartan Lough (Irish: Loch Gartáin), also known as Lough Beagh South, is a freshwater lake in the northwest of Ireland. It is located in north County Donegal close to the eastern boundary of Glenveagh National Park.
Muckno Lake (Irish: Loch Mucnú), also known as Lough Muckno, is a freshwater lake in the northeast of Ireland. It is located in County Monaghan beside the town of Castleblayney.
Lough Funshinagh (Irish: Loch Fuinseann, meaning "lake of the ash tree") is a lake and Special Area of Conservation in County Roscommon, Ireland, found to the west of Lough Ree. It has been called Ireland's amazing disappearing lake, due to the way it empties quickly - in as little as two days - and unpredictably, sometimes killing thousands of fish.
Lough Inagh (Irish: Loch Eidhneach, meaning "lake of the place of ivy") is a freshwater lake in the Inagh Valley, in Connemara, Galway, in the west of Ireland.
Lough Guitane (Irish: Loch Coiteáin) is a freshwater lake in the southwest of Ireland. It is located in County Kerry near the town of Killarney.
Derryclare Lough (Irish: Loch Dhoire an Chláir) is a freshwater lake at the entrance of the Inagh Valley, in Connemara, Galway, in the west of Ireland.
Rinn Lough (Irish: Claonloch, also Irish: Loch na Reanna), also known as Lough Rynn, is a freshwater lake in the northwest of Ireland. It is located in south County Leitrim.
Lough O'Flynn (Irish: Loch Uí Fhloinn) is a freshwater lake in the west of Ireland. It is located in west County Roscommon and is the source of the River Suck.
Brackley Lough or Lough Brackley is a lake in County Cavan, Ireland, found to the west of the N87. It feeds into the River Blackwater, County Cavan.
Lough Barra (Irish: Loch Beara) is a freshwater lake in the northwest of Ireland. It is located in north County Donegal in the valley along the Gweebarra fault.
Dunglow Lough (Irish: Loch an Chlocháin Léith), also known as Dungloe Lough, is a freshwater lake in the northwest of Ireland. It is located in north County Donegal in the Rosses fishery.
Lough Aleck More (Irish: Loch an Leaca Mór) is a freshwater lake in the northwest of Ireland. It is located in County Donegal in the Rosses fishery.
Lough Craghy (Irish: Loch Chrathaí), also locally known as Tully Lake, is a freshwater lake in the northwest of Ireland. It is located in north County Donegal in the Rosses fishery.
Lough Anaserd (Irish: Loch an Easaird) is a freshwater lake in the west of Ireland. It is located in west County Galway on the Slyne Head peninsula.
Tacumshin Lake (from Irish: Loch Sáile) is a lake in Tacumshane, in the southeast of County Wexford, Ireland. It is designated as a Special Protection Area (SPA) under the EU Bird Directive (EC/79/409) and a Special Area of Conservation by the National Parks and Wildlife Services.
Keshcarrigan lough (Irish: Ceis Charraigín loch, meaning "Kesh, or causeway, near the little rock, lake") is a mesotrophic freshwater near Keshcarrigan village, in northwest Ireland. Known for quality course fishing, Keshcarrigan lough allows bank fishing from concrete stands on the northern shore, two with wheelchair access. The ecology of Keshcarrigan lough, and other Leitrim waterways, is threatened by curly waterweed, zebra mussel, and freshwater clam invasive species.
Lough Ree (Irish: Loch Rí) is a lake in the midlands of Ireland, the second of the three major lakes on the River Shannon. Lough Ree is the second largest lake on the Shannon after Lough Derg. The other two major lakes are Lough Allen to the north, and Lough Derg to the south. There are also several minor lakes along the length of the river. The lake serves as a border between the counties of Longford and Westmeath (both in the province of Leinster) on the eastern side and County Roscommon in the province of Connacht on the western side. The lake is popular for fishing and boating. The lake supports a small commercial eel fishery and is locally famous for its eels on wheels truck. The town of Athlone is situated at the southern end of the lake, and has a harbour for boats going out on the lake. The small town of Lanesboro is at the northern end of the lake.
Shannon Pot or Legnashinna (from Irish: Lag na Sionna, meaning 'hollow of the Shannon') is a pool in the karst landscape in the townland of Derrylahan near Cuilcagh Mountain in County Cavan, Ireland. An aquifer-fed naturally fluctuating pool, it is the traditional source of the River Shannon.
Lough Corrib ( lokh KORR-ib; Irish: Loch Coirib) is a lake in the west of Ireland. The River Corrib or Galway River connects the lake to the sea at Galway. It is the largest lake within the Republic of Ireland and the second largest on the island of Ireland (after Lough Neagh). It covers 176 km² and lies mostly in County Galway with a small area of its northeast corner in County Mayo.
Lough Conn (Irish: Loch Con, meaning "lake of the hound") is a lake in County Mayo, Ireland. With an area of about 48 square kilometres (19 sq mi), it is Ireland's seventh largest lake. With its immediate neighbour to the south, Lough Cullin, it is connected to the Atlantic Ocean by the River Moy. Lough Conn is noted for its trout and salmon fishing. The ruins of a priory exist at Errew Abbey.
Lough Sheelin (from Irish Loch Síodh Linn 'lake of the fairy pool'), in standard Irish Loch Síleann, is a limestone freshwater lough (lake) in central Ireland. The lake is a part of the River Inny course, and ultimately of the Shannon system.
Lough Gill (Irish: Loch Gile, meaning "bright or white lake") is a freshwater lough (lake) mainly situated in County Sligo, but partly in County Leitrim, in Ireland. Lough Gill provides the setting for William Butler Yeats' poem "The Lake Isle of Innisfree".
Lough Allen (Irish: Loch Aillionn) is a lake on the River Shannon in northeastern Connacht, Ireland. Most of the lake is in County Leitrim, with a smaller part in County Roscommon. The lake lies to the south of the River Shannon's source, near the Iron Mountains, and is the uppermost of the three main lakes on the river. The other two, Lough Ree and Lough Derg are much further to the south.
Lough Derravaragh (Irish: Loch Dairbhreach) is a lake in County Westmeath, Ireland, north of Mullingar between Castlepollard, Crookedwood and Multyfarnham.
Lough Mask (Irish: Loch Measca) is a limestone lake of about 83 km2 (32 sq mi) in Counties Galway and Mayo, Ireland, north of Lough Corrib. Lough Mask is the middle of the three lakes, which empty into the Corrib River, through Galway, into Galway Bay. Lough Carra flows into Lough Mask, which feeds into Lough Corrib through an underground stream which becomes the River Cong.
Lough Bane (Irish: An Loch Bán) is a lake on the border of County Meath and County Westmeath in Ireland. The county border runs east–west through the centre of the lake.
Lough Arrow (Irish: Loch Arbhach) is a freshwater lake in the northwest of Ireland. This large, scenic lake covers an area of 12.47 square kilometres (4.8 sq mi) and lies mostly in County Sligo with a smaller part in County Roscommon. It is a popular trout fishing lake.
Lough Graney (Irish: Loch Gréine) is a lake in County Clare, Ireland. The lake's outlet is the short River Graney, which flows through Lough O'Grady and past the town of Scarriff into the west side of Lough Derg.
Lough Carra (Irish: Loch Ceara) is a limestone lake (marl) of 4,000 acres (16 km2), in County Mayo, Ireland, about 8 miles (13 km) south of Castlebar. It is approximately 6 miles (9.7 km) long and varies in width from 400 yards (370 m) to one mile (1.6 km). The average depth is 6 feet (1.8 m), with a maximum of 60. It drains into Lough Mask via the Keel River.
Lough Derg or Loch Derg (Irish: Loch Dearg) is a lake in County Donegal, Republic of Ireland. It is near the border with Northern Ireland and lies about 7 kilometres (4.3 mi) north of the border village of Pettigo. It is best known for St Patrick's Purgatory, a site of pilgrimage on Station Island in the lake.
Lough Ennell (Irish: Loch Ainninn) is a lake near the town of Mullingar, County Westmeath, Ireland. It is situated beside the N52 road, off the Mullingar/Kilbeggan road. The lake is part of the Lough Ennell Special Protection Area. It is 6.5 km (4.0 mi) long by 2 km (1.2 mi) wide, with an area of about 12 km2 (4.6 sq mi). Lough Ennell has a large area of shallow water with nearly two-thirds of its area being less than 25 feet (8 m) and almost half of it being under 10 ft (3.0 m) deep. The lake produced Ireland's largest ever lake brown trout at 26 lbs (11.8 kg). Lough Ennell is dotted with islands, many of which have now become attached to the shoreline as the levels of the lake have changed.
Lough Owel (Irish: Loch Uail) is a mesotrophic lough in the Midlands of Ireland, situated north of Mullingar, the county town of Westmeath. It has a maximum depth of 21 metres (69 ft). Water from Lough Owel feeds the Royal Canal, a canal crossing Ireland from Dublin to the River Shannon. The lake is close to the N4 primary road.
Lough Key (Irish: Loch Cé) is a lake in Ireland. It is in the northwest of County Roscommon, northeast of the town of Boyle. The lough is believed to be named after a mythical figure named Cé.
Doo Lough (Irish: Dúloch, meaning "Black Lake") is a freshwater lake in the west of Ireland. It is located in southwest County Mayo on the Murrisk peninsula.
Lough Tay (Irish: Loch Té), is a small but scenic lake set on private property in the Wicklow Mountains in Ireland. The lake lies between the mountains of Djouce 725 metres (2,379 ft), and Luggala 595 metres (1,952 ft), and is dominated by Luggala's east-facing granite cliffs. The lough is fed by the Cloghoge River, which then drains into Lough Dan to the south. Lough Tay forms part of the Guinness Estate at Luggala, and has limited public access.
Poulaphouca Reservoir, officially Pollaphuca (from Irish: Poll a' Phúca, meaning 'the Púca's hole'), is an active reservoir (for both water supply and electricity generation) and area of wild bird conservation in west County Wicklow, Ireland. It is also known locally as Blessington Lake.
Vartry Reservoir (Irish: Taiscumar Fheartraí) is a reservoir at Roundwood in County Wicklow, Ireland. The water is piped from Vartry to a large open service reservoir in Stillorgan in the southern suburbs of Dublin. The reservoir is operated by Irish Water.
Lough Ea is a lake located to the east of the town of Glenties, near the R253 road in County Donegal, Ireland. The lake is the source of the Owenea River which meets the Atlantic Ocean 26 kilometres (16 mi) to the west.
Lough Eske or Lough Eask (from Irish Loch Iascaigh or Loch Iasc 'Lake of the Fish') is a small lake in County Donegal in the west of Ulster in Ireland. The lake lies to the northeast of Donegal Town, to which it is connected by the River Eske. The lake is about 900 acres (3.6 km2) in size and is surrounded to the north, east and west by the Bluestack Mountains, which occupy much of southern County Donegal.
Lough Ramor (Irish: Loch Ramhar) is a large natural lake of 741 hectares situated near Virginia, County Cavan. From early records Vita Tripartita identified as being in the territory of Cenal Muinreamhair. The literal meaning of the term Muinreamhair is 'fat-neck' and appears to be derived from a prehistoric or mythical ancestor warrior, connoting great strength. Loch Muinreamhair also appears in early manuscripts of the Four Masters.
Lough Gowna (Irish: Loch Gamhna, meaning "calf lake") is a fresh water lake which is the uppermost lake on the River Erne. It is located on the border between County Longford and County Cavan, with the largest part of the lake being in County Longford.
Poulaphouca, officially Pollaphuca (Irish: Poll an Phúca, meaning "the Púca's hole"), is the name of a waterfall and bridge on the River Liffey between County Wicklow and County Kildare. It is primarily known for its hydroelectric generating station and artificial lake, known as Poulaphouca Reservoir, Poulaphouca Lake, or Blessington Lake. The once-famous Poulaphouca Waterfall has little water running over it any longer because of the hydroelectric project.
Lough Melvin ( lokh-MEL-vin; Irish: Loch Meilbhe) is a lake in the northwest of the island of Ireland on the border between County Leitrim (in Ireland) and County Fermanagh (in the United Kingdom). It is internationally renowned for its unique range of plants and animals.
Lough Cullin (Irish: Loch Cuilinn, meaning "holly lake") is a lake in County Mayo in Ireland. With its immediate neighbour to the north, Lough Conn, it is connected to the Atlantic by the River Moy. Lough Cullin is noted for its trout and salmon fishing.
Lough Talt (Irish: Loch Tailt) is a lake in the Ox Mountains of south County Sligo, Ireland. The lake is located between the villages of Tubbercurry and Bonniconlon on the R294 road. Lough Talt is part of the Lough Hoe Bog Special Area of Conservation, an area of montane bogland and oligotrophic lakes.
Lough Dan (Irish: Loch Deán) is a scenic boomerang-shaped ribbon lake largely set on private property, in the Wicklow Mountains in Ireland. Lough Dan lake lies at the base of Luggala 595 metres (1,952 ft) and Knocknacloghoge 534 metres (1,752 ft) mountains. The lough is fed by the Cloghoge (draining Lough Tay), and Inchavore rivers, and is drained by the River Avonmore. Part of Lough Dan forms part of the Guinness Estate at Luggala, and has limited public access.
Lough Gur (Irish: Loch Goir) is a lake in County Limerick, Ireland between the towns of Herbertstown and Bruff. The lake forms a horseshoe shape at the base of Knockadoon Hill and some rugged elevated countryside. It is one of Ireland's most important archaeological sites. Humans have lived near Lough Gur since about 3000 BC and there are numerous megalithic remains there.
Lough Hyne (; Irish: Loch Oighinn) is a fully marine sea lough in West Cork, Ireland, about 5 km southwest of Skibbereen. It was designated as Ireland's first Marine Nature Reserve in 1981.
Caragh Lake (Irish: Loch Cárthaí), also Lough Caragh, is a lake in the Reeks District in County Kerry, Ireland. The lake was formed by the damming of the Caragh River.
Lough Currane (Irish: Loch Luíoch), also called Lough Leeagh, is a lake in County Kerry, Ireland. Waterville lies on its western bank, close to the Atlantic Ocean and Raheen lies on its southern bank. It covers an area of 2,500 acres (10 km2) and is 3.5 miles (5.6 km) long and 2 miles (3.2 km) at the widest point.
The lake had the St. Finan Cam (inhabited c. 7th century) monastery on Church Island. To the south of the lake is Inis Uasal (Noble Island), an island dedicated to St. Finan. The Annals of Inishfallen mention that Amchad, the "anchorite of God" was buried on the island in 1058.
Lough Leane (from Irish Loch Léin 'lake of learning') is the largest of the three lakes of Killarney. The River Laune flows from the lake into the Dingle Bay to the northwest.
Rahasane turlough is a turlough (an intermittent lake), west of Craughwell in south-west County Galway. It is the largest surviving turlough in Ireland.
Lough Cullaunyheeda (Irish: Loch Choileáin Uí Shíoda) is a freshwater lake in the Mid-West Region of Ireland. It is located in east County Clare.
Cloonaghlin Lough (Irish: Loch Oileán Uí Eadhna) is a freshwater lake in the southwest of Ireland. It is located on the Iveragh Peninsula in County Kerry.
Ballycuirke Lough (Irish: Loch Bhaile Uí Chuirc), also known as Ballyquirke Lough, is a freshwater lake in the west of Ireland. It is part of the Lough Corrib catchment in County Galway.
Ballyalla Lake, also known as Ballyallia Lough, is a small lake on the River Fergus, north of the town of Ennis in County Clare, Ireland. It covers an area of 308 hectares (760 acres), it is an important site for waterbirds, and has been recognised as a wetland of international importance under the Ramsar Convention. It is protected by the Irish National Parks and Wildlife Service as a wildfowl sanctuary, meaning that shooting game birds is not allowed at the lake.