Record Atlas
Flags of Northern Ireland

Family research · Phase 6 of the world atlas

Flags of Northern Ireland

Northern Ireland is the youngest political entity in this whole atlas, created by the 1921 partition of Ireland, and it remains the only nation in the United Kingdom with no single flag of its own officially recognized in law today. This page follows the province of Ulster from its early medieval Gaelic over-kingdoms, through the Anglo-Norman invasion, plantation and union, to partition, to a two-decade experiment with an official government flag, and finally to the present, deliberately unresolved status quo.

The history here is contested and, in living memory, violent. It is presented factually and without taking a side: this is a record of which flags had legal or governmental standing when, not an endorsement of any of the communities or causes associated with them.

Scope of this page: the six counties that became Northern Ireland in 1921 (historically part of the province of Ulster, though Ulster itself has nine counties), c. 450–present, six political entities. Before 1921 this territory's flag history is identical to the rest of Gaelic Ireland/the Kingdom of Ireland/the United Kingdom of Great Britain and Ireland — see the Ireland page for the fuller island-wide account; entries here are written specifically from Ulster/Northern Ireland's own vantage point. No internal governing split exists within Northern Ireland's own modern borders at any point covered here, so this page carries no internal-partition map. Part of a larger atlas — see the linked pages at the bottom.

One border, no internal split

Northern Ireland's own real border, traced whole — there is no genuinely separate internal region to carve out here; what changes, era to era, is which flag flew as the official state or governmental banner over the whole territory. Press play, or drag the slider.

This page carries no internal-partition map by design. Northern Ireland's six counties have never been divided into two separately-governed pieces the way, say, Royal and Ottoman Hungary were — the political contest here has always been over which flag represents the whole territory, not over which government controls which slice of it.
c. 450
REPUBLIC OF IRELAND GREAT BRITAIN → NORTHERN IRELAND
Early Christian & Gaelic Ulster

Real traced border (simplified from public coastal-vertex data), no internal partition — see the rule box above for why.

How we know this. 6 of 6 eras on this page carry an evidence panel (4 attested, 1 placeholder image, 1 not yet checked). Only the ones marked attested are confirmed by the sources named under them; where sources disagree or a claim could not be confirmed, the panel says so.
the Union Flag, Northern Ireland's official state flag today
1972 – present

Northern Ireland (direct rule to devolution, no official flag of its own)

Part of the United KingdomWilliam WhitelawNo official state religion
Migration & conquest:Immigration: Eastern European workers (2004–)Emigration: Troubles-era departures (1970s–90s)
Ruling house:House of Windsor

Who & why: escalating violence in the conflict known as the Troubles leads the UK government to prorogue the Stormont Parliament in March 1972, imposing direct rule from Westminster; devolved government is restored only intermittently thereafter, most durably after the Good Friday Agreement of April 1998 establishes the Northern Ireland Assembly and a power-sharing executive (itself suspended for various periods since, including 2017–2020 and 2022–2024). Roughly 3,600 people are killed in the Troubles between the late 1960s and the 1998 Agreement, across republican, loyalist, and state actors; this page states that fact neutrally without assigning blame to any single community.

What it represents: Wikipedia and Flags of the World both say the Union Flag is the only official flag for Northern Ireland (FOTW cites the Flags Regulations (Northern Ireland) 2000). The Ulster Banner's official status ended with the abolition of the Northern Ireland government, which Wikipedia places in 1972 in one place and under the Northern Ireland Constitution Act 1973 in another; FOTW treats 1973 as the key date. The March 1972 prorogation and the Troubles figures are not covered by the sources read.

Attestedhow we know this

Wikipedia: the Union Flag is the only official flag for Northern Ireland; the government and parliament were abolished in 1972 (elsewhere attributed to the Constitution Act 1973); a 2021 commission recommended a Civic Flag. FOTW: Flags Regulations (Northern Ireland) 2000 restrict flags on government buildings to the Union Flag; College of Arms advised in November 1973 that use of the arms was improper after the 1973 Act.

Not established: 1972 versus 1973 for the end of the Ulster Banner's official status; the March 1972 prorogation is not in either source.

Paint guide
Proportions1:2 (state flag proportions).
LayoutBlue field, white St Andrew's saltire, red St George's cross, red St Patrick's saltire overlaid (1801 Union Flag).
Blue#00247D
White#F4EFE1
Red#CF142B
the Ulster Banner — St George's Cross, Red Hand star and crown
1953 – 1972

Northern Ireland (Stormont government flag, the Ulster Banner)

UK, devolved government bannerBasil Brooke (Lord Brookeborough)No official state religion
Migration & conquest:Emigration: refugees fleeing south (Aug 1969)
Ruling house:House of Windsor

Who & why: Northern Ireland's devolved government at Stormont, established by the 1920 Government of Ireland Act and opened in 1921, initially flies only the Union Flag. In 1953, to mark Elizabeth II's coronation, the Governor of Northern Ireland is granted the right to fly a new banner derived from the Northern Ireland government's own coat of arms; it comes into use as the government's flag from 1953 until the Stormont Parliament is prorogued in 1972.

What it represents: Wikipedia and Flags of the World say the Government of Northern Ireland's arms, and a banner of them, were granted by Royal Warrant on 2 August 1924, and that the banner was flown for the 1953 coronation (FOTW: Royal Assent for widespread use on 29 May 1953). Wikipedia dates a Tudor crown to 1924-1953 and the St Edward's crown to 1953-1972; FOTW says 1950s-60s illustrations show a Tudor-style crown and that the arms were redrawn with St Edward's crown in 1971. The Governor's grant described earlier on this page is not in the sources read.

Attestedhow we know this

Wikipedia: Royal Warrant of 1924 for the government's arms; the banner was first flown over Parliament Buildings for the 1953 coronation and officially used with Tudor Crown (1924-1953) and St Edward's Crown (1953-1972). FOTW: 2 August 1924 Royal Warrant, 29 May 1953 Royal Assent for widespread use, arms redrawn with St Edward's crown on 6 January 1971, abolished 1973.

Not established: The crown on the 1950s-60s flag is disputed between the two sources; the design (star and red hand) is not specified in the Wikipedia text read.

Paint guide
Proportions1:2, matching Union Flag convention of the time.
LayoutWhite field, red St George's cross, a white six-pointed star centered bearing a red hand, topped with a gold crown.
White#F4EFE1
Red#9C3B28
Crown gold#F9D616
the Union Flag, Northern Ireland's flag from the moment of its creation
1921 – 1953

Northern Ireland (created by partition)

Part of the United KingdomJames Craig (Viscount Craigavon)No official state religion
Ruling house:House of Windsor

Who & why: the Government of Ireland Act 1920 partitions Ireland, creating two devolved territories within the United Kingdom: Northern Ireland (six northeastern counties, with a unionist, majority-Protestant electorate built up since the Plantation era) and Southern Ireland, which never functions as intended. The Northern Ireland Parliament opens at Belfast City Hall in June 1921; the December 1921 Anglo-Irish Treaty gives the new territory the explicit right to opt out of the emerging Irish Free State, which its own Parliament exercises within the first month, making the 1921 border permanent after a Boundary Commission's findings are quietly shelved in 1925.

What it represents: Northern Ireland's only officially recognised flag was the Union Flag in this span, according to a 1953 ministerial statement quoted by Wikipedia; neither source describes a flag specific to 1921. Wikipedia and Flags of the World date the banner of arms to a 1924 warrant, so this page's 'nothing until 1953' is not quite what they say.

Attestedhow we know this

Wikipedia (Flag of Northern Ireland): there is no official flag for Northern Ireland except the Union Flag; on 1 July 1953 the Minister for Home Affairs said the Union Flag was the only officially recognised flag. FOTW: 'The official flag of Northern Ireland is the Union Flag' (Prothero 2002), made official for all purposes after the Stormont government went in 1973.

Not established: Both sources also describe the Ulster Banner, which Wikipedia dates to a 1924 royal warrant for the Government of Northern Ireland (official use 1924-1953 with the Tudor Crown) and FOTW treats as introduced and widely used from 1953; neither describes a flag specific to 1921.

Paint guide
Proportions1:2 (state flag proportions).
LayoutBlue field, white St Andrew's saltire, red St George's cross, red St Patrick's saltire overlaid (1801 Union Flag).
Blue#00247D
White#F4EFE1
Red#CF142B
the 1801 Union Flag, flown over Ulster within the United Kingdom of Great Britain and Ireland
1801 – 1921

Ulster (within the United Kingdom of Great Britain and Ireland)

Part of the United KingdomWilliam Pitt the YoungerChurch of Ireland (established until 1871)
Migration & conquest:Emigration: Great Famine & after (1845–)
Ruling house:House of HanoverHouse of Windsor

Who & why: the Act of Union 1800, in force from 1 January 1801, abolishes the separate Parliament of Ireland and merges it into Westminster, creating the United Kingdom of Great Britain and Ireland. Ulster, like the rest of Ireland, is governed directly from London for the whole of this span. The 19th century sees Ulster's economy, particularly around Belfast, industrialize far more heavily than the rest of Ireland (shipbuilding, linen), reinforcing a distinct regional identity; growing nationalist demands for Irish Home Rule from the 1880s onward are met with fierce unionist resistance concentrated in Ulster, including the mass 1912 signing of the Ulster Covenant, setting up the partition to come.

What it represents: the 1801 Union Flag. The sources read (Wikipedia and Flags of the World pages on Northern Ireland) mention 1801 only in navigation links and do not describe its use over Ulster.

Attestedhow we know this

FOTW (United Kingdom): the Union Flag was adopted 1 January 1801 with St Patrick's saltire added after the Union with Ireland Act 1800. Wikipedia (Union Jack): design in force from 1 January 1801; after the 1921 Treaty, Northern Ireland's Prime Minister Craig welcomed that the flag would not need changing ('mutilating the Union Jack') and in December 1922 the flag was not changed.

Not established: Neither source describes use of the flag in Ulster specifically before 1921 beyond Ireland being part of the United Kingdom; the 1801-1921 span is inferred from the Union Flag's continuous use.

Paint guide
Proportions1:2 (state flag proportions).
LayoutBlue field, white St Andrew's saltire, red St George's cross, red St Patrick's saltire overlaid.
Blue#00247D
White#F4EFE1
Red#CF142B
gold harp on blue (Lordship/Kingdom of Ireland), red hand added for Ulster's own device
c. 1177 – 1801

Gaelic and Plantation Ulster (Lordship / Kingdom of Ireland)

Part of the Lordship / Kingdom of IrelandJohn de CourcyRoman Catholic, later Church of Ireland
Migration & conquest:Conquered by: Anglo-Norman & English Crown (from 1177)Immigration: Ulster Plantation settlers (from 1606)Emigration: Ulster Scots to American colonies (18th c.)
Ruling house:O'Neill dynastyO'Donnell dynastyHouse of Stuart

Who & why: John de Courcy's 1177 invasion of eastern Ulster establishes the short-lived Earldom of Ulster, but for most of the medieval period Ulster remains the most thoroughly Gaelic part of Ireland, dominated by the O'Neill and O'Donnell dynasties well after Anglo-Norman control elsewhere had taken hold. That changes decisively after the Nine Years' War (1593–1603) ends in Gaelic defeat and the 1607 Flight of the Earls, when the Ulster Plantation (from 1606, formalized 1610) confiscates land from Gaelic lords and settles Protestant tenants from England and, especially, Scotland — the demographic and political foundation for the unionist-versus-nationalist divide that shapes everything after 1921. Ulster is governed throughout this span as part of the wider Lordship of Ireland (from 1177) and then the Kingdom of Ireland (from 1541), both under the English/British crown.

What it represents: Wikipedia says the Kingdom of Ireland had no official flag or arms, though a Royal Standard of Ireland is listed for 1542-1801 and the arms are a gold harp on blue, and that the origin of the Red Hand is disputed. Flags of the World calls the Lordship of Ireland banner of arms a modern historical banner and not a documented flag. The gold-harp-on-blue flag with a red hand drawn here is therefore not documented for this span.

Not yet checked against sourceshow we know this

Wikipedia (Kingdom of Ireland): the Lordship of Ireland was founded in 1177 and the Kingdom of Ireland (1542-1800) 'had no official flag or arms'; a Royal Standard of Ireland is captioned 1542-1801 and the arms are blazoned azure a harp Or. FOTW (Lordship of Ireland): the Lordship banner of arms is a modern historical banner, not a documented flag; three crowns on blue arms are attributed from the 1380s. Wikipedia (Flag of Northern Ireland): the Red Hand origin is disputed; the Royal Standard of Ireland is listed 1541-1800.

Not established: No source documents a gold harp on blue flag, or a flag with an Ulster red hand, for this span; the first source calls the Kingdom flagless and the second calls the Lordship banner non-historical.

Paint guide
ProportionsNo fixed civil ratio recorded for this period.
LayoutBlue field, gold harp with silver/white strings (simplified here), red hand shown alongside as Ulster's own regional device.
Blue#1E3F6B
Gold#C9A13C
Red hand#9C3B28
NO FLAG DOCUMENTED
placeholder — Gaelic over-kingdoms, no heraldic banner survives
c. 450 – 1177

Early Christian & Gaelic Ulster (Uláid, Airgíalla, Cénél nEógain)

Fragmented Gaelic over-kingdomsSaint Patrick (traditional 5th-century mission)Christianization (5th–7th c.), then Roman Catholic
Migration & conquest:Emigration: Dál Riata settlement of western Scotland (from c. 500 CE)Viking raids on Ulster's monasteries (from c. 795 CE)
Ruling house:Cénél nEógain (proto-O'Neill)

Who & why: for over seven centuries before John de Courcy's 1177 invasion, Ulster is governed by rival Gaelic over-kingdoms rather than any single crown: the Uláid along the eastern coast (the kingdom that gives Ulster its name), the Airgíalla client-kingdoms in the south, and the Cénél nEógain, who expand steadily from the north-west to become the region's dominant power by the eve of the Anglo-Norman invasion. Christianity, traditionally associated with a 5th-century mission linked to Saint Patrick, takes root across this same span, and Armagh, in the heart of Ulster, becomes Ireland's leading monastic and ecclesiastical center.

What it represents: no heraldic flag survives or is credibly attested for any Gaelic Ulster over-kingdom in this era — authority was expressed through kingship, church foundations, and annal-recorded genealogy, not a fixed territorial banner. Shown here honestly blank rather than invented.

World context: this span opens as the Western Roman Empire falls (476) and runs through the Viking Age that also battered Ulster's own monasteries from the 790s, alongside Charlemagne's Frankish empire and, in Ulster's own scriptorium tradition, the production of lavishly illuminated gospel manuscripts in the same Insular art style as the Book of Kells (c. 800) — Ireland's peripheral position did not mean isolation from the wider currents remaking early medieval Europe.

Placeholder imagehow we know this

This page's own caption calls the image a placeholder: «placeholder — Gaelic over-kingdoms, no heraldic banner survives».

Not established: Whether a flag, banner or standard existed in this period was not checked. The colour shown is not evidence of one.

Paint guide
ProportionsN/A — no attested flag for any Gaelic Ulster over-kingdom.

Reading the tags

Part of the Lordship / Kingdom of Ireland — crown territory, no separate Ulster flag
Part of the United Kingdom — official state flag is the Union Flag
UK, devolved government banner — Stormont's own flag, 1953–72 only
Leader — the named ruler most associated with the era's start
State religion — the official/established faith, not the population's
Compiled from Wikipedia, Flags of the World (fotw.info / crwflags.com), and Britannica. Colors are close historical approximations for painting reference; pre-19th-century swatches are informed reconstructions, not official specifications. Map is schematic and not surveyed.