17th Century The O'Neills For centuries, Dungannon's fortunes were closely tied to that of the
O'Neill dynasty which ruled a large part of
Ulster until the 17th century. Dungannon was the clan's main stronghold. The traditional site of inauguration for 'The O'Neill' was
Tullyhogue Fort, an
Iron Age mound some four miles northeast of Dungannon. The clan
O'Hagan were the stewards of this site for the O'Neills. In the 14th century the O'Neills built a castle on what is today known as Castle Hill; the location was ideal for a fort, for it was one of the highest points in the area and dominated the surrounding countryside, giving (depending on the weather) the ability to see seven counties. This
castle was burned in 1602 by
Hugh O'Neill, 2nd Earl of Tyrone, as Crown forces under
Lord Mountjoy closed in on the Gaelic lords towards the end of the
Nine Years' War. In 1607, ninety-nine Irish chieftains and their followers, including Hugh O'Neill, set sail from
Rathmullan, bound for the continent, in an event known as the
Flight of the Earls. In what became known as the
Plantation of Ulster, their lands were confiscated and awarded to Protestant English and Scots settlers; Dungannon and its castle were granted to
Sir Arthur Chichester, the
Lord Deputy of Ireland.
Plantation town As part of the Plantation, in 1608
James I chartered a number of '"free schools" for the sons of local merchants and farmers. This included the
Royal School Dungannon, established in the town in 1636, and occupying its present site south-east of Castle Hill from 1789 with the erection of the building we now know as the "Old Grey Mother" by the
Archbishop of Armagh, Richard Robinson. Sir
Phelim O'Neill seized the town in the opening stages of the
Irish Rebellion of 1641, and issued the
Proclamation of Dungannon, in which the rebels set out their aims and proclaimed their loyalty to
Charles I. O'Neill claimed they had been ordered to rise by the King, and later produced a forged commission in support of this. During the course of the
Irish Confederate Wars, Dungannon changed hands several times; Scots
Covenanter forces under
Alexander Leslie captured it in September 1642, before O'Neill took it back in spring 1643. In 1689, during the
Williamite War, Castle Hill, with still extant fortifications, was occupied by a
Jacobite force, and hosted
King James II as he passed en route to the
Siege of Derry. In 2007, the castle was partially excavated by the
Channel 4 archaeological show
Time Team, uncovering part of the
moat and walls of the castle.
18th Century Volunteer conventions In 1782, as the "most central town of Ulster", Dungannon was chosen as the site for a convention of the
Volunteers. Initially formed for defence against the French in the
American War of Independence, the Volunteers had increasingly been agitated by the same kinds of grievances driving rebellion among their kinsmen in America (among them, local emigrants who, in the foothills of the Appalachian Mountains, had established the township of
Dungannon, Virginia). Delegates from 147 Volunteer corps assembled at the
Presbyterian church on Scotch Street, previously favoured as a meeting place for the
Presbyterian Synod of Ulster. Taking on "the substance of a national assembly", the Convention resolved that the right asserted by the
British Crown to overrule the
Irish Parliament in Dublin, and to legislate for Ireland from
Westminster was "unconstitutional" and "illegal". Two further Volunteer conventions were held in Dungannon, in 1783 and 1793. In the context, of debating reform of the Irish parliament, the Volunteers divided over the question of
Catholic emancipation, Protestants alone having the right to vote, to assume office and to carry arms. They also divided on the question of parliament reform. The Protestants of Dungannon had no elected representation as the town was one of Ireland's many
pocket boroughs. Its
MP was the nominee of its proprietor,
Thomas Knox, 1st Viscount Northland.
Orangemen and United men Local veterans of Volunteer movement broke into two camps; those who joined the new-formed
Orangemen, sworn to uphold the
Protestant Ascendancy, in forming a loyal
yeomanry, and those who, having taken the
United Irish oath "to obtain an equal, full and adequate representation of all the people of Ireland", began raiding the homesteads of these yeomen to procure arms and gunpowder.
Martial law imposed on the area from January 1797, broke the local United Irish organisation. The rebellion in the summer of 1798, which saw risings in
counties Antrim and
Down, was chiefly marked in Dungannon by
courts martial in which United Irishmen were sentenced to floggings and to
penal transportation.
19th century Linen The town in which the Volunteers had gathered, was still largely a settlement of thatched houses. But by 1802, a surveyor for the
Dublin Society was able to describe it as "one of the most prosperous towns in the North of Ireland in the
linen trade," and as "inferior" to no other "for its rapid progress in building". In the 1820s and 30s, buyers for the bleachers would come from Belfast every Thursday and take their places on the "standings" on the east side of Market Square where the farmers brought their "webs" of raw, unbleached linen woven by their families and servants.
The Workhouse In 1842, following the application to Ireland of the new
English Poor Law system of
Workhouses (an alternative to
outdoor relief, that made it easier for landlords to clear their estates in favour of larger English-export-oriented farms), a
Workhouse was built in Dungannon. Until its closure in 1948, about 1000 people passed through its doors. A memorial on the former site, now the grounds of the
South Tyrone Hospital, commemorates "all those who sought shelter" within its walls. This includes the victims of the
Great Famine and the attendant
cholera and
typhus. Among these were the "Irish Famine Orphan Girls", a group of young women sent from the workhouse to Australia between 1848 and 1850.
Tenant agitation In 1834, Dungannon had again been the venue for a regional convention: upwards of 75,000 people attended a "Great Protestant Meeting" called by the sometime
Moderator of the Presbyterian Church in Ireland,
Henry Cooke and by
Tory grandees. Landlords and their retinues were joined by parading Orangemen. Locally, the call for Protestant unity was not well heeded. Tithes levied atop rents on behalf of the established
Church of Ireland, failure to respect the protections of the
Ulster Custom, and
rack renting, set tenant farmers, Protestant and Catholic alike, at odds with the landed
gentry.They were drawn to the
Tenant Right League, and subsequently the direct-action
Irish National Land League. With the introduction in 1872 of the
secret ballot, landlords and their agents who, in the traditional
hustings, had been able to monitor how their tenants voted, could no longer secure the election of
Conservative candidates for Parliament. In 1874,
Dungannon elected
Thomas Alexander Dickson (of Milltown House), an independent
Liberal who offered himself as an opponent of "rack renting and
serfdom", and in 1880 his son
James Dickson. From 1886, the Dickson legacy was sustained in an enlarged
South Tyrone constituency by
Thomas Russell, champion of the Ulster Farmers and Labourers Union,
MP until 1910 when, after being addressed in a series of
land acts, agrarian issues were overshadowed by the return to the political agenda of
Irish home rule. The town, meanwhile, had not been free of sectarian tensions. In 1880, police had used buckshot, killing one and wounding several, to quell rioting in the town after Orangemen had sacked houses in
Listamlet.
Twentieth Century Unionist-Nationalist division In 1913, 1,200
Ulster Volunteers paraded before
Sir Edward Carson, leader of the
unionist, almost exclusively Protestant, opposition to Irish self-government. The
nationalist response, was the formation of the
Irish Volunteers, whose membership in Tyrone, standing at 8,600 on the eve of
the Great War in July 1914, was double that of Carson's Volunteers in the county. In the town itself (now the
Dungannon District Electoral Area) unionists continued to dominate electorally until the end of the century (nationalists--
Sinn Féin, the
SDLP and a
Republican independent—won their first majority, four of six councillors, in 2023).
Housing and civil rights protest Dungannon in early 1960s was described as "an average country town" with a population of around seven thousand, "half Protestant, half Catholic". The "best, and largest, firms", including the town's two textile factories, were Protestant owned, and "the upper echelons of the workforce were virtually all Protestant". For working-class Catholics the most "crushing problem" was the housing shortage, as the one ward in which Nationalist (Catholic) councillors could assign tenancies had seen no new houses built by the Unionist-controlled council. Three months later, 17 families squatted an estate of pre-fabricated bungalows at Fairmount Park in protest, the beginning of a campaign for an independent points-based system of housing allocation. On 24 August 1968, the
Campaign for Social Justice (CSJ), launched in town by Councillor
Patricia McCluskey and her husband Conn, a local
GP, the
Northern Ireland Civil Rights Association (NICRA), and other groups organised Northern Ireland's
first civil rights march from
Coalisland to Dungannon in solidarity. The rally was officially banned, but took place and passed off without incident. Many more marches were held over the following year. In the build-up toward the sustained political violence of
the Troubles,
loyalists attacked some of the marches and held counter-demonstrations in a bid to get the marches banned.
The Troubles During the Troubles, the Dungannon district suffered numerous bombings, and almost 50 people were killed in and around the town. The two deadliest attacks involved, in March 1976, the
Ulster Volunteer Force detonating a
car bomb outside a
pub crowded with people celebrating
Saint Patrick's Day, and, in December 1979, a land-mine ambush of a British Army patrol by the
Provisional Irish Republican Army (IRA).
The Hillcrest Bar bombing, on Donaghmore Road, killed four civilians—including two 13-year-old boys standing outside—and injured almost 50 people. The
land-mine attack against
British Army Land Rovers on the Ballygawley Road, killed four British soldiers. The most extensive property damage was caused in March 1979 by a 50lb IRA bomb that destroyed a bank and a row of shops on Scotch street.
Survey of the town, 1971 In a survey, published in 1971 by the Ulster Architectural Heritage Society, the site of the town on the southern slope of the Castle Hill, running down to the Rhone river, is described as "impressive". Note is made of the "careful planting and parkland, inherited from the 18lh and early centuries" which forms a "continuous swathe of natural beauty stretching from Killymeal in the north through Windmill Wood, Ballynorthland, Milltown and Mullaghanagh to terminate in Ballysaggart Lough", and that the skyline remains "dominated by the spires of the principal churches, St. Patrick's, St. Anne's and the tower of the Presbyterian church". The authors were less sanguine about contemporary developments, and sounded a warning note for the future: (founded in 1943 in the neighboring village of
Moygashel). In addition to the East Timorese, through labour recruiters in Portugal, employers brought other
Portuguese-speaking workers to Dungannon, so that today the town also has residents born in
Portugal,
Brazil, and
Mozambique. The
2021 Census recorded over a third of the town's population as born outside of the British Isles, In a blow to the local food-processing economy, in January 2026
ABP Foods announced its intention to cease retail packing at its packing facility in Granville Industrial Estate in Dungannon, with a loss of 338 jobs. == Demography ==