County Mayo (Irish: Contae Mhaigh Eo, meaning "Plain of the yew trees") is a county in Ireland. In the West of Ireland, in the province of Connacht, it is named after the village of Mayo, now generally known as Mayo Abbey. Mayo County Council is the local authority. The population was 130,507 at the 2016 census. The boundaries of the county, which was formed in 1585, reflect the Mac William Íochtar lordship at that time.
Contae Mhaigh Eo
The Yew County
|• Type||County Council|
|• Total||5,586 km2 (2,157 sq mi)|
|• Density||23/km2 (61/sq mi)|
|Time zone||UTC±0 (WET)|
|• Summer (DST)||UTC+1 (IST)|
|Eircode routing keys||
F12, F23, F26, F28, F31, F35 (primarily)
|Telephone area codes||093–098 (primarily)|
It is bounded on the north and west by the Atlantic Ocean; to the south by County Galway; the east by County Roscommon; and the northeast by County Sligo. Mayo is the third-largest of Ireland's 32 counties in area and 15th largest in terms of population. It is the second-largest of Connacht's five counties in both size and population. Mayo has the longest coastline of any county in Ireland, at 1,168 km (726 mi) or approximately 21% of the total coastline of the State. There is a distinct geological difference between the west and the east of the county. The west consists largely of poor subsoils and is covered with large areas of extensive Atlantic blanket bog, whereas the east is largely a limestone landscape. Agricultural land is therefore more productive in the east than in the west.
- The highest point in Mayo (and Connacht) is Mweelrea, at 814 m (2,671 ft)
- The River Moy in the northeast of the county is renowned for its salmon fishing
- Ireland's largest island, Achill Island, lies off Mayo's west coast
- Mayo has Ireland's highest cliffs at Croaghaun, Achill Island, while the Benwee Head cliffs in Kilcommon Erris drop almost perpendicularly 270 m (900 ft) into the Atlantic Ocean.
- The northwest areas of County Mayo have some of the best renewable energy resources in Europe, if not the world, in terms of wind resources, ocean wave, tidal and hydroelectric resources
There are nine historic baronies, four in the northern area and five in the south of the county:
- Erris (north-west, containing Belmullet, Gweesalia, Bangor Erris, Kilcommon, Ballycroy etc.)
- Burrishoole (west, containing Achill, Mulranny and Newport, County Mayo)
- Gallen (east, containing Bonniconlon, Foxford)
- Tyrawley (north-east, containing Ballina, Ballycastle, Killala, Moygownagh)
- Clanmorris, (south-east, containing Claremorris and Balla)
- Costello (east-south-east, containing Kilkelly Ballyhaunis) etc.
- Murrisk (south-west, containing Westport, Louisburgh, Croagh Patrick etc.)
- Kilmaine (south, containing Ballinrobe, Cong etc.)
- Carra (south, containing Castlebar, Partry etc.)
Largest towns by population (according to the 2016 Census)Edit
Flora and faunaEdit
Consultants working for the Corrib gas project have carried out extensive surveys of wildlife flora and fauna in Kilcommon Parish, Erris between 2002 and 2009. This information is published in the Corrib Gas Proposal Environmental impact statements 2009 and 2010.
There is evidence of human occupation of what is now County Mayo going far back into prehistory. At Belderrig on the north Mayo coast, there is evidence for Mesolithic (Middle Stone Age) communities around 4500 BC. while throughout the county there is a wealth of archaeological remains from the Neolithic (New Stone Age) period (ca. 4,000 BC to 2,500 BC), particularly in terms of megalithic tombs and ritual stone circles.
The first people who came to Ireland – mainly to coastal areas as the interior was heavily forested – arrived during the Middle Stone Age, as far back as eleven thousand years ago. Artefacts of hunter/gatherers are sometimes found in middens, rubbish pits around hearths where people would have rested and cooked over large open fires. Once cliffs erode, midden-remains become exposed as blackened areas containing charred stones, bones, and shells. They are usually found a metre below the surface. Mesolithic people did not have major rituals associated with burial, unlike those of the Neolithic (New Stone Age) period. The Neolithic period followed the Mesolithic around 6,000 years ago. People began to farm the land, domesticate animals for food and milk, and settle in one place for longer periods. These people had skills such as making pottery, building houses from wood, weaving, and knapping (stone tool working). The first farmers cleared forestry to graze livestock and grow crops. In North Mayo, where the ground cover was fragile, thin soils washed away and blanket bog covered the land farmed by the Neolithic people.
Extensive pre-bog field systems have been discovered under the blanket bog, particularly along the North Mayo coastline in Erris and north Tyrawley at sites such as the Céide Fields, centred on the northeast coast.
The Neolithic people developed rituals associated with burying their dead; this is why they built huge, elaborate, galleried stone tombs for their dead leaders, known nowadays as megalithic tombs. There are over 160 recorded megaliths in County Mayo, such as Faulagh.
There are four distinct types of Irish megalithic tombs—court tombs, portal tombs, passage tombs and wedge tombs—examples of all of which can be found in County Mayo. Areas particularly rich in megalithic tombs include Achill, Kilcommon, Ballyhaunis, Moygownagh, Killala and the Behy/Glenurla area around the Céide Fields.
Bronze Age (ca. 2,500 BC to 500 BC)Edit
Megalithic tomb building continued into the Bronze Age when metal began to be used for tools alongside the stone tools. The Bronze Age lasted approximately from 4,500 years ago to 2,500 years ago (2,500 BC to 500 BC). Archaeological remains from this period include stone alignments, stone circles and fulachta fiadh (early cooking sites). They continued to bury their chieftains in megalithic tombs which changed design during this period, more being of the wedge tomb type and cist burials.
Iron Age (ca. 500 BC to AD 325)Edit
Around 2,500 years ago the Iron Age took over from the Bronze Age as more and more metalworking took place. This is thought to have coincided with the arrival of Celtic speaking peoples and the introduction of the ancestor of the Irish language. Towards the end of this period, the Roman Empire was at its height in Britain but it is not thought that the Roman Empire extended into Ireland. Remains from this period, which lasted until the Early Christian period began about AD 325 (with the arrival of Saint Patrick into Ireland, as a slave) include crannógs (Lake dwellings), promontory forts, ringforts and souterrains of which there are numerous examples across the county. The Iron Age was a time of tribal warfare and kingships, each fighting neighbouring kings, vying for control of territories and taking slaves. Territories were marked by tall stone markers, Ogham stones, using the first written down words using the Ogham alphabet. The Iron Age is the time period in which the mythological tales of the Ulster Cycle and sagas took place, as well as that of the Táin Bó Flidhais, whose narrative is set in mainly in Erris.
Early Christian period (ca. AD 325 to AD 800)Edit
Christianity came to Ireland around the start of the 5th century. It brought many changes including the introduction of the Latin alphabet. The tribal 'tuatha' and new Christian religious settlements existed side by side. Sometimes it suited the chieftains to become part of the early Churches, other times they remained as separate entities. St. Patrick (4th century) may have spent time in County Mayo and it is believed that he spent forty days and forty nights on Croagh Patrick praying for the people of Ireland. From the middle of the 6th-century hundreds of small monastic settlements were established around the county. Some examples of well-known early monastic sites in Mayo include Mayo Abbey, Aughagower, Ballintubber, Errew Abbey, Cong Abbey, Killala, Turlough on the outskirts of Castlebar, and island settlements off the Mullet Peninsula like the Inishkea Islands, Inishglora and Duvillaun.
In 795 the first of the Viking raids took place. The Vikings came from Scandinavia to raid the monasteries as they were places of wealth with precious metal working taking place in them. Some of the larger ecclesiastical settlements erected round towers to prevent their precious items being plundered and also to show their status and strength against these pagan raiders from the north. There are round towers at Aughagower, Balla, Killala, Turlough and Meelick. The Vikings established settlements which later developed into towns (Dublin, Cork, Wexford, Waterford etc.) but none were in County Mayo. Between the reigns of Kings of Connacht Cathal mac Conchobar mac Taidg (973–1010) and Tairrdelbach Ua Conchobair (1106–1156), various tribal territories were incorporated into the kingdom of Connacht and ruled by the Siol Muirdaig dynasty, based initially at Rathcroghan in County Roscommon, and from c. 1050 at Tuam. The families of O'Malley and O'Dowd of Mayo served as admirals of the fleet of Connacht, while families such as O'Lachtnan, Mac Fhirbhisigh, and O'Cleary were ecclesiastical and bardic clans.
Anglo-Normans (12th to 16th centuries)Edit
In AD 1169 when one of the warring kings in the east of Ireland, Dermot MacMurrough, appealed to the King of England for help in his fight with a neighbouring king, the response resulted in the Anglo-Norman colonisation of Ireland. County Mayo came under Norman control in AD 1235. Norman control meant the eclipse of many Gaelic lords and chieftains, chiefly the O'Connors of Connacht. During the 1230s, the Anglo-Normans and Welsh under Richard Mór de Burgh (c. 1194 – 1242) invaded and settled in the county, introducing new families such as Burke, Gibbons, Staunton, Prendergast, Morris, Joyce, Walsh, Barrett, Lynott, Costello, Padden and Price, Norman names are still common in County Mayo. Following the collapse of the lordship in the 1330s, all these families became estranged from the Anglo-Irish administration based in Dublin and assimilated with the Gaelic-Irish, adopting their language, religion, dress, laws, customs and culture and marrying into Irish families. They became "more Irish than the Irish themselves".
The most powerful clan to emerge during this era were the Mac William Burkes, also known as the Mac William Iochtar (see Burke Civil War 1333–1338), descended from Sir William Liath de Burgh, who defeated the Gaelic-Irish at the Second Battle of Athenry in August 1316. They were frequently at war with their cousins, Clanricarde of Galway, and in alliance with or against various factions of the O'Conor's of Siol Muiredaig and O'Kelly's of Uí Maine. The O'Donnell's of Tyrconnell regularly invaded in an attempt to secure their right to rule.
The Anglo-Normans encouraged and established many religious orders from continental Europe to settle in Ireland. Mendicant orders—Augustinians, Carmelites, Dominicans and Franciscans began new settlements across Ireland and built large churches, many under the patronage of prominent Gaelic families. Some of these sites include Cong, Strade, Ballintubber, Errew Abbey, Burrishoole Abbey and Mayo Abbey. During the 15th and 16th centuries, despite regular conflicts between them as England chopped and changed between religious beliefs, the Irish usually regarded the King of England as their King. When Elizabeth I came to the throne in the mid-16th century, the English people, as was customary at that time, followed the religious practices of the reigning monarch and became Protestant. Many Irish people such as Grace O'Malley, the famous pirate queen, had close relationships with the English monarchy, and the English kings and queens were welcome visitors to Irish shores. The Irish however, generally held onto their Catholic religious practices and beliefs. The early plantations of settlers in Ireland began during the reign of Queen Mary in the mid-16th century and continued throughout the long reign of Queen Elizabeth I until 1603. By then the term County Mayo had come into use. In the summer of 1588, the galleons of the Spanish Armada were wrecked by storms along the west coast of Ireland. Some of the hapless Spaniards came ashore in Mayo, only to be robbed and imprisoned, and in many cases slaughtered.
Protestant settlers from Scotland, England, and elsewhere in Ireland, settled in the County in the early 17th century. Many would be killed or forced to flee because of the 1641 Rebellion, during which a number of massacres were committed by the Catholic Gaelic Irish, most notably at Shrule in 1642. A third of the overall population was reported to have perished due to warfare, famine and plague between 1641 and 1653, with several areas remaining disturbed and frequented by Reparees into the 1670s.
17th and 18th centuriesEdit
Pirate Queen Grace O'Malley is probably the best-known person from County Mayo between the mid-16th century and the turn of the 17th century. In the 1640s, when Oliver Cromwell overthrew the English monarchy and set up a parliamentarian government, Ireland suffered severely. With a stern regime in absolute control needing to pay its armies and allies, the need to pay them with grants of land in Ireland led to the 'to hell or to Connaught' policies. Displaced native Irish families from other (eastern and southern mostly) parts of the country were either forced to leave the country or were awarded grants of land 'west of the Shannon' and put off their own lands in the east. The land in the west was divided and sub-divided between more and more people as huge estates were granted on the best land in the east to those who best pleased the English. Mayo does not seem to have been affected much during the Williamite War in Ireland, though many natives were outlawed and exiled.
For the vast majority of people in County Mayo the 18th century was a period of unrelieved misery. Because of the penal laws, Catholics had no hope of social advancement while they remained in their native land. Some, like William Brown (1777–1857), left Foxford with his family at the age of nine and thirty years later was an admiral in the fledgeling Argentine Navy. Today he is a national hero in that country.
The general unrest in Ireland was felt just as keenly across Mayo, and as the 19th century approached and news reached Ireland about the American War of Independence and the French Revolution, the downtrodden Irish, constantly suppressed by Government policies and decisions from Dublin and London, began to rally themselves for their own stand against British rule in their country. 1798 saw Mayo become a central part of the United Irishmen Rebellion when General Humbert from France landed in Killala with over 1,000 soldiers playing to support the main uprising. They marched across the county towards the administrative centre of Castlebar, leading to the Battle of Castlebar. Taking the garrison by surprise Humbert's army was victorious. He established a 'Republic of Connacht' with John Moore of the Moore family from Moore Hall near Partry as its head. Humbert's army marched on towards Sligo, Leitrim and Longford where they were suddenly faced with a massive British army and were forced to surrender in less than half an hour. The French soldiers were treated honourably, but for the Irish the surrender meant slaughter. Many died on the scaffold in towns like Castlebar and Claremorris, where the high sheriff for County Mayo, the Honourable Denis Browne, M.P., brother of Lord Altamont, wreaked a terrible vengeance – thus earning for himself the nickname which has survived in folk memory to the present day, 'Donnchadh an Rópa' (Denis of the Rope).
In the 18th century and early 19th century, sectarian tensions arose as evangelical Protestant missionaries sought to 'redeem the Irish poor from the errors of Popery'. One of the best known was the Rev. Edward Nangle's mission at Dugort in Achill. These too were the years of the campaign for Catholic Emancipation and, later, for the abolition of the tithes, which a predominately Catholic population was forced to pay for the upkeep of the clergy of the Established (Protestant) Church.
19th and 20th centuriesEdit
During the early years of the 19th century, famine was a common occurrence, particularly where population pressure was a problem. The population of Ireland grew to over eight million people prior to the Irish Famine (or Great Famine) of 1845–47. The Irish people depended on the potato crop for their sustenance. Disaster struck in August 1845, when a killer fungus (later diagnosed as Phytophthora infestans) started to destroy the potato crop. When widespread famine struck, about a million people died and a further million left the country. People died in the fields of starvation and disease. The catastrophe was particularly bad in County Mayo, where nearly ninety per cent of the population depended on the potato as their staple food. By 1848, Mayo was a county of total misery and despair, with any attempts at alleviating measures in complete disarray.
There are numerous reminders of the Great Famine to be seen on the Mayo landscape: workhouse sites, famine graves, sites of soup kitchens, deserted homes and villages and even traces of undug 'lazy-beds' in fields on the sides of hills. Many roads and lanes were built as famine relief measures. There were nine workhouses in the county: Ballina, Ballinrobe, Belmullet, Castlebar, Claremorris, Killala, Newport, Swinford and Westport.
A small poverty-stricken place called Knock, County Mayo, made headlines when it was announced that an apparition of the Blessed Virgin Mary, St. Joseph and St. John had taken place there on 21 August 1879, witnessed by fifteen local people.
A national movement was initiated in County Mayo during 1879 by Michael Davitt, James Daly, and others, which brought about a major social change in Ireland. Michael Davitt, a labourer whose family had moved to England joined forces with Charles Stewart Parnell to win back the land for the people from the landlords and stop evictions for non-payment of rents. The organisation became known as the Irish National Land League, and its struggle to win rights for poor farmers in Ireland was known as the Land War.
It was in this era of agrarian unrest that a new verb was introduced to the English language by Mayo - "to boycott". Charles Boycott was an English landlord deeply unpopular with his tenants. When Charles Steward Parnell made a speech in Ennis, County Clare urging Nonviolent resistance against landlords, his tactics were enthusiastically taken in Mayo against Boycott. The entire Catholic community around Lough Mask in South Mayo where Boycott had his estate became a campaign of total social ostracisation against Boycott, a tactic that would one day come to bear his name. The campaign against Boycott became a cause célèbre in the British press after he wrote a letter to The Times. The British elite rallied to his cause and Fifty Orangemen from County Cavan and County Monaghan travelled to his estate to harvest the crops, while a regiment of the 19th Royal Hussars and more than 1,000 men of the Royal Irish Constabulary were deployed to protect the harvesters. However, this cost of doing this was completely uneconomic: It cost the British government somewhere in the region of £10,000 to simple harvest £500 worth of crops. Boycott sold off the estate and the British government's resolve to try and break boycotts in this completely dissolved, resulting in victory for the tenants.
Mayo, as all parts of what became the Irish Free State, was affected by the events of the Irish revolutionary period, including the Irish War of Independence and the subsequent Irish Civil War. Major John MacBride of Westport was amongst those who took part in the 1916 Easter Rising and was subsequently executed by the British for his participation. His death served as a rallying call for Republicans in Mayo and led to Mayo men such as P. J. Ruttledge, Ernie O'Malley, Michael Kilroy and Thomas Derrig to rise up during the War of Independence. In the ensuing Civil War many of these leading figures chose the Anti-treaty side and fought in bitter battles such as those in Ballina, which changed hands between pro and anti-treaty forces a number of times.
In the aftermath of the Civil War, there was a consolidation of many of those with anti-treaty feelings into the new political party Fianna Fáil. PJ Ruttledge and Thomas Derrig would become founding members of the party and served in Eamon de Valera's first-ever Fianna Fáil government as ministers. Mayo politicians would continue to contribute to the national political scene over the decades. In 1990 Mary Robinson became the first-ever female President of Ireland, and is widely credited with revitalising the position with an importance and focus it had never possessed before. In 2011 Enda Kenny became the first politician from Mayo to serve as Taoiseach, the head of government of Ireland. Kenny went on to become the longest-serving Fine Gael Taoiseach in Irish history.
Clans and familiesEdit
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In the early historic period, what is now County Mayo consisted of a number of large kingdoms, minor lordships and tribes of obscure origins. They included:
- Calraige – pre-historic tribe found in the parishes of Attymass, Kilgarvan, Crossmolina and the River Moy
- Ciarraige – settlers from Munster found in south-east Mayo around Kiltimagh and west County Roscommon
- Conmaicne – a people located in the barony of Kilmaine, alleged descendants of Fergus mac Róich
- Fir Domnann – branch of the Laigin, originally from Britain, located in Erris
- Gamanraige – pre-historic kings of Connacht, famous for battle with Medb & Ailill of Cruachan in Táin Bó Flidhais. Based in Erris, Carrowmore Lake, Killala Bay, Lough Conn
- Gailenga – kingdom extending east from Castlebar to adjoining parts of Mayo
- Uí Fiachrach Muidhe – a sept of the Connachta, based around Ballina, some of whom were kings of Connacht
- Partraige – apparently a pre-Gaelic people of Lough Mask and Lough Carra, namesakes of Partry
- Umaill – kingdom surrounding Clew Bay, east towards Castlebar, its rulers adopted the surname O'Malley
Local government and political subdivisionsEdit
Mayo County Council (Irish: Comhairle Contae Mhaigh Eo) is the authority responsible for local government. As a county council, it is governed by the Local Government Act 2001. The county is divided into four municipal areas Castlebar, Ballina, Claremorris and West (an area which stretches from Westport to Belmullet), each with a population of roughly 32,000 to 34,000 people. The council is responsible for housing and community, roads and transportation, urban planning and development, amenity and culture, and environment.
For the purpose of local elections, the county is divided into six local election areas (LEAs), each centred around a major town. Each LEA elects a number of councillors who then represent the area for a span of 5 years on the County Council. The number of councillors allotted to an LEA is based on its population.
|Local Election Area||Number of Councillors|
The county town is at Áras an Contae in Castlebar, the main population centre located in the centre of the county. For national elections, half of the Claremorris Municipal District is in Galway West, and stretches from Ashford Castle to Ireland West Airport Knock.
Since 2016, Mayo has been represented on a national political level by four Teachta Dála who represent the constituency of Mayo in Dáil Eireann. Previous to 2016 the constituency had five TDs but this was reduced based on the county's current population in line with proportional representation.
Voting patterns and political historyEdit
Historically, Mayo has tended to vote Fianna Fáil, as Fianna Fáil managed to position themselves in the 20th century as the party best fit to represent farmers with small holdings, who were plentiful in Mayo. With so many of Mayo's electorate being small farmers, the county became a base for the emergence of Clann na Talmhan, an agrarian party in the 1940s and 1950s. Clann an Talmhan's second leader, Joseph Blowick came from South Mayo and that is where his seat was. The party was not able to last in the long run though as it was unable to hold together its voting bloc of both small farmers in the west of Ireland and large farmers in the east.
Towards the start of the 21st century, the balance of power in Mayo began to shift towards Fine Gael, thanks in part to the emergence of Enda Kenny and Michael Ring. Kenny, who became Taoiseach in 2011, was able to lead Fine Gael to a historic victory in the 2011 Irish general election which included securing four out of five available seats for his party in Mayo.
In 2020, Rose Conway-Walsh came within 200 votes of topping the poll and became the first Sinn Féin TD for Mayo since 1927, riding a nationwide surge Sinn Féin experienced that year.
Despite being historically the third-largest party in Ireland, Labour has struggled to ever make inroads into Mayo. The party has only ever had one TD for Mayo, former party leader Thomas J. O'Connell, who represented South Mayo between 1927 and 1932. While Labour has not proven itself electorally successful in Mayo, Mayo has provided important members to the Labour Party. Mary Robinson from Ballina became the first ever female President of Ireland as a Labour candidate while Pat Rabbitte, originally from Claremorris, served as leader of the Labour Party from 2002 to 2007. Serving alongside Rabbitte was Emmet Stagg, one of the longest standing Labour TDs of the modern era, himself from Hollymount not far from Claremorris.
The county has experienced perhaps the highest emigration out of Ireland. In the 1840s–1880s, waves of emigrants left the rural townlands of the county. Initially triggered by the Great Famine and then in search of work in the newly industrialising United Kingdom and the United States, the population fell considerably. From 388,887 in 1841, the population fell to 199,166 in 1901. The population reached a low of 109,525 in 1971 as emigration continued. Emigration slowed down as the Irish economy began to expand in the 1990s and early 2000s. Consequently, the population of Mayo increased from 110,713 in 1991 to 130,638 in 2011.
According to figures in the 2006 National Census the religious demographic breakdown for County Mayo was 114,215 Roman Catholics, 2,476 Church of Ireland, 733 Muslims, 409 other Christians, 280 Presbyterians, 250 Orthodox Christians, 204 Methodists, 853 other stated religions, 3,267 no religion and 1,152 no stated religion.
9% of the population of County Mayo live in the Gaeltacht. The Gaeltacht Irish-speaking region in County Mayo is the third-largest in Ireland with 10,886 inhabitants. Tourmakeady is the largest village in this area. All schools in the area use Irish as the language of instruction. Mayo has four gaelscoileanna in its four major towns, providing primary education to students through Irish.
Mayo is well served by rail travel. Westport railway station is the terminus station on the Dublin to Westport Rail service. Railway stations are also located at Ballyhaunis, Claremorris, Castlebar, Manulla, Ballina and Foxford. All railway stations are located on the same railway line, with exception to Ballina and Foxford which requires passengers to change at Manulla Junction. There are currently four services each way every day on the line.
There are a number of national primary roads in the county including the N5 road connecting Westport with Dublin, the N17 road connecting the county with Galway and Sligo and the N26 road connecting Ballina with Dublin via the N5. There are a number of national secondary roads in the county also including the N58 road, N59 road, N60 road, N83 road & N84 road. There are plans in place for a new road running from northwest Westport to east Castlebar. The proposal is a type two dual carriageway with junctions at the N59, N84 and N60.
Ireland West Airport Knock is an international airport located in the county. The name is derived from the nearby village of Knock. Recent years have seen the airport's passenger numbers grow to over 650,000 yearly with a number of UK and European destinations. August 2014 saw the airport have its busiest month on record with 102,774 passengers using the airport.
Places of interestEdit
Mayo Now is a monthly entertainment and culture magazine for the towns of Ballina, Foxford, Killala, Crossmolina and surrounding areas – this is out on the first Friday of each month.
Mayo has its own online TV channel Mayo TV which was launched in 2011. It covers news and events from around the county and regularly broadcasts live to a worldwide audience. Local radio stations include Erris FM, Community Radio Castlebar, Westport Community Radio, BCR FM (Ballina Community Radio) and M.W.R. (Mid West Radio).
The documentary Pipe Down, which won best feature documentary at the 2009 Waterford Film Festival, was made in Mayo.
There is local resistance to Shell's decision to process raw gas from the Corrib gas field at an onshore terminal. In 2005, five local men were jailed for contempt of court after refusing to follow an Irish court order. Subsequent protests against the project led to the Shell to Sea and related campaigns.
The Mayo Energy Audit 2009–2020 is an investigation into the implications of peak oil and subsequent fossil fuel depletion for a rural county in west of Ireland. The study draws together many different strands to examine current energy supply and demand within the area of study, and assesses these demands in the face of the challenges posed by the declining production of fossil fuels and expected disruptions to supply chains, and by long-term economic recession.
The Mayo GAA senior team last won the Sam Maguire Cup in 1951, when the team was captained by Seán Flanagan. The team's third title, this followed victories in 1936 and the previous year, 1950. Since 1951, the team have made numerous All-Ireland Final appearances (in 1989, twice in 1996, 1997, 2004, 2006, 2012, 2013, twice again in 2016 against Dublin, with their latest appearance coming in 2017 against Dublin, again), though the team have failed on all occasions to achieve victory over their opponents. Mayo are the current Allianz national league football champions having beaten Kerry in the national league final at Croke Park in April 2019
The team's unofficial supporters club are Mayo Club '51, named after the last team who won the Sam Maguire. The county colours of Mayo GAA are traditionally green and red.
Although Gaelic football and association football are the most popular sport in the county, other sports are popular in the county as well such as rugby, basketball, hurling, swimming, tennis, badminton, athletics, handball and racquetball.
- Edward Francis Blewitt the child of Irish emigrants from Rappagh, Ballina, County Mayo, the great-grandfather of US President Joe Biden
- Richard Bourke, 6th Earl of Mayo (1822–1872) – Viceroy of India (1869–1872)
- Ulick Bourke (1829–1887) – Scholar and founder of the Gaelic Union
- Louis Brennan (1852–1932) –Invented the brennan torpedo
- Margaret Burke-Sheridan (1889–1958) – Opera singer
- Michael Davitt (1846–1906) – Irish republican, agrarian campaigner, labour leader, Home Rule politician and Member of Parliament (MP) who founded the Irish National Land League.
- Grace O'Malley (circa 1530 – circa 1603) – Lord of the O'Malley dynasty in the 16th century
- Admiral William Brown (1777–1857) – Founder of the Argentine Navy
- William M. Browne (1823–1883) – Commander and Statesman in the Confederate States of America
- Michael Gaughan (1949–1974) – Volunteer in the Provisional Irish Republican Army during The Troubles, went on hunger strike and died 64 days later
- Charles Haughey (1925–2006) – Taoiseach of Ireland (1979–1982; 1987–1992)
- Enda Kenny (born 1951) – Politician, leader of Fine Gael (2002–2017), and Taoiseach of Ireland (2011–2017)
- John MacBride (1868–1916) – Republican and military leader, executed by the British for his participation in the 1916 Easter Rising
- Tom Maguire (1892–1993) – Soldier and politician, volunteer in the Irish Republican Army (IRA) during the Irish War of Independence, and the Anti-Treaty IRA during the Irish Civil War. TD (South Mayo, 1921–1927) and Vice President of Sinn Féin (1935–1937)
- John MacHale (1789–1881) – Archbishop of Tuam, Irish independence leader.
- William O'Dwyer (1890–1964) – 100th mayor of New York City (1946–1950)
- Paul O'Dwyer (1907–1998) – President of New York City Council, prominent New York City human rights attorney, supporter of Irish nationalism, and defender of several Irishmen from deportation, including "The Fort Worth Five" and Vincent Conlon.
- Ernie O'Malley (1897–1957) – Prominent officer in the Irish Republican Army (IRA) during the Irish War of Independence and on the Anti-Treaty IRA side in the Irish Civil War; also a writer.
- Mary Robinson (born 1944) – First female President of Ireland (1990–1997), and United Nations High Commissioner for Human rights.
- P. J. Ruttledge (1892–1952) – Soldier and politician, member of the Irish Republican Army (IRA) during the Irish War of Independence (1919–1921), founding member of Fianna Fáil, Minister for Justice (1930s).
- William Joyce Sewell (1835–1901) – Unionist colonel during American Civil War and US senator for New Jersey.
- Frank Stagg (1941–1975) – Volunteer in the Provisional Irish Republican Army (IRA) during the Troubles, died on hunger strike after 62 days
- Sally Rooney (born 1991) – Author (Conversations with Friends, Normal People), and screenwriter
- Louis Walsh (born 1952) – Entertainment manager and judge on The X Factor (UK), and Ireland's Got Talent
- Jimmy Walsh (1885–1962) – Outfielder for American MLB team Boston Red Sox. Won world series in 1916.
- High Sheriff of Mayo
- List of abbeys and priories in the Republic of Ireland (County Mayo)
- List of loughs of County Mayo
- List of Mayo people
- List of mountains and hills of County Mayo
- List of rivers of County Mayo
- List of roads of County Mayo
- Lord Lieutenant of Mayo
- Mayo County Council
- River Robe
- Táin Bó Flidhais
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|Wikivoyage has a travel guide for County Mayo.|
|Wikisource has the text of the 1911 Encyclopædia Britannica article Mayo .|
- Connaught Telegraph
- County Mayo: An Outline History
- Family History in North County Mayo
- Historical Ballinrobe
- Irish language in Mayo
- Wild Atlantic Way Mayo Route Map and Guide
- Mayo County Council's website
- Mayo News
- The Mayo Peace Park and Garden of Remembrance
- Western People