Sinn Féin ( ; ; ) is an
Irish republican and
democratic socialist
Democratic socialism is a left-wing economic and political philosophy that supports political democracy and some form of a socially owned economy, with a particular emphasis on economic democracy, workplace democracy, and workers' self-mana ...
political party active in both the
Republic of Ireland
Ireland ( ), also known as the Republic of Ireland (), is a country in Northwestern Europe, north-western Europe consisting of 26 of the 32 Counties of Ireland, counties of the island of Ireland, with a population of about 5.4 million. ...
and
Northern Ireland
Northern Ireland ( ; ) is a Countries of the United Kingdom, part of the United Kingdom in the north-east of the island of Ireland. It has been #Descriptions, variously described as a country, province or region. Northern Ireland shares Repub ...
.
The
original Sinn Féin organisation was founded in 1905 by
Arthur Griffith. Its members founded the revolutionary
Irish Republic
The Irish Republic ( or ) was a Revolutionary republic, revolutionary state that Irish Declaration of Independence, declared its independence from the United Kingdom of Great Britain and Ireland in January 1919. The Republic claimed jurisdict ...
and its parliament, the
First Dáil, and many of them were active in the
Irish War of Independence
The Irish War of Independence (), also known as the Anglo-Irish War, was a guerrilla war fought in Ireland from 1919 to 1921 between the Irish Republican Army (1919–1922), Irish Republican Army (IRA, the army of the Irish Republic) and Unite ...
, during which the party was associated with the
Irish Republican Army (1919–1922)
The Irish Republican Army (IRA; ) was an Irish republicanism, Irish republican revolutionary paramilitary organisation who waged a Guerrilla warfare, guerrilla campaign against the British occupation of Ireland in the 1919–1921 Irish War of In ...
. The party split before the
Irish Civil War
The Irish Civil War (; 28 June 1922 – 24 May 1923) was a conflict that followed the Irish War of Independence and accompanied the establishment of the Irish Free State, an entity independent from the United Kingdom but within the British Emp ...
and again in its aftermath, giving rise to the two traditionally dominant parties of Irish politics:
Fianna Fáil
Fianna Fáil ( ; ; meaning "Soldiers of Destiny" or "Warriors of Fál"), officially Fianna Fáil – The Republican Party (), is a centre to centre-right political party in Ireland.
Founded as a republican party in 1926 by Éamon de ...
, and
Cumann na nGaedheal (which merged with smaller groups to form
Fine Gael
Fine Gael ( ; ; ) is a centre-right, liberal-conservative, Christian democratic political party in Ireland. Fine Gael is currently the third-largest party in the Republic of Ireland in terms of members of Dáil Éireann. The party had a member ...
). For several decades the remaining Sinn Féin organisation was small and often without parliamentary representation. It continued its association with the
Irish Republican Army
The Irish Republican Army (IRA) is a name used by various Resistance movement, resistance organisations in Ireland throughout the 20th and 21st centuries. Organisations by this name have been dominantly Catholic and dedicated to anti-imperiali ...
. Another split in 1970 at the start of
the Troubles
The Troubles () were an ethno-nationalist conflict in Northern Ireland that lasted for about 30 years from the late 1960s to 1998. Also known internationally as the Northern Ireland conflict, it began in the late 1960s and is usually deemed t ...
led to the modern Sinn Féin party, with the other faction eventually becoming the
Workers' Party
Workers' Party is a name used by several political parties throughout the world. The name has been used by both organisations on the left and right of the political spectrum. It is currently used by followers of Marxism, Marxism–Leninism, Maoism ...
.
During the
Troubles, Sinn Féin was associated with the
Provisional Irish Republican Army
The Provisional Irish Republican Army (Provisional IRA), officially known as the Irish Republican Army (IRA; ) and informally known as the Provos, was an Irish republican paramilitary force that sought to end British rule in Northern Ireland ...
. For most of that conflict, it was affected by
broadcasting bans in the Irish and
British media. Although the party sat on local councils, it maintained a policy of
abstentionism for the British
House of Commons
The House of Commons is the name for the elected lower house of the Bicameralism, bicameral parliaments of the United Kingdom and Canada. In both of these countries, the Commons holds much more legislative power than the nominally upper house of ...
and the Irish
Dáil Éireann
Dáil Éireann ( ; , ) is the lower house and principal chamber of the Oireachtas, which also includes the president of Ireland and a senate called Seanad Éireann.Article 15.1.2° of the Constitution of Ireland reads: "The Oireachtas shall co ...
, standing for election to those legislatures but pledging not to take their seats if elected. After
Gerry Adams
Gerard Adams (; born 6 October 1948) is a retired Irish Republican politician who was the president of Sinn Féin between 13 November 1983 and 10 February 2018, and served as a Teachta Dála (TD) for Louth from 2011 to 2020. From 1983 to 19 ...
became party leader in 1983, electoral politics were prioritised increasingly. In 1986, the party dropped its abstentionist policy for the Dáil; some members formed
Republican Sinn Féin in protest. In the 1990s, Sinn Féin—under the leadership of Adams and
Martin McGuinness—was involved in the
Northern Ireland peace process. This led to the
Good Friday Agreement and created the
Northern Ireland Assembly
The Northern Ireland Assembly (; ), often referred to by the metonym ''Stormont'', is the devolved unicameral legislature of Northern Ireland. It has power to legislate in a wide range of areas that are not explicitly reserved to the Parliam ...
, and saw Sinn Féin become part of the
power-sharing Northern Ireland Executive. In 2006, it co-signed the
St Andrews Agreement and agreed to support the
Police Service of Northern Ireland.
Sinn Féin is the largest party in the Northern Ireland Assembly, having won the largest share of first-preference votes and the most seats in the
2022 election, the first time an
Irish nationalist
Irish nationalism is a nationalist political movement which, in its broadest sense, asserts that the people of Ireland should govern Ireland as a sovereign state. Since the mid-19th century, Irish nationalism has largely taken the form of cult ...
party has done so. Since 2024,
Michelle O'Neill has served as the first ever Irish nationalist
First Minister of Northern Ireland. From 2007 to 2022, Sinn Féin was the second-largest party in the Assembly, after the
Democratic Unionist Party (DUP), and its nominees served as
deputy First Minister in the Northern Ireland Executive.
In the House of Commons of the United Kingdom, Sinn Féin has held seven of Northern Ireland's seats since the
2024 election; it continues its policy of abstentionism at Westminster. In
Dáil Éireann
Dáil Éireann ( ; , ) is the lower house and principal chamber of the Oireachtas, which also includes the president of Ireland and a senate called Seanad Éireann.Article 15.1.2° of the Constitution of Ireland reads: "The Oireachtas shall co ...
it is the main opposition, having won the second largest number of seats in the
2024 election. The current
president of Sinn Féin is
Mary Lou McDonald, who succeeded Gerry Adams in 2018.
Name
The phrase "Sinn Féin" is
Irish for "Ourselves" or "We Ourselves",
[MacDonncha (2005), p. 12.] although it is frequently mistranslated as "ourselves alone" (from "''
Sinn Féin Amháin''", an early-20th-century slogan). The name is an assertion of Irish national sovereignty and self-determination, i.e., the
Irish people
The Irish ( or ''Na hÉireannaigh'') are an ethnic group and nation native to the island of Ireland, who share a common ancestry, history and Culture of Ireland, culture. There have been humans in Ireland for about 33,000 years, and it has be ...
governing themselves, rather than being part of a political union with Great Britain under the
Westminster Parliament.
A split in January 1970, mirroring a split in the IRA, led to the emergence of two groups calling themselves Sinn Féin. One, under the continued leadership of
Tomás Mac Giolla, became known as "Sinn Féin (Gardiner Place)", or "Official Sinn Féin"; the other, led by
Ruairí Ó Brádaigh, became known as "Sinn Féin (Kevin Street)", or "Provisional Sinn Féin". As the "Officials" dropped all mention of Sinn Féin from their name in 1982—instead calling themselves the
Workers' Party
Workers' Party is a name used by several political parties throughout the world. The name has been used by both organisations on the left and right of the political spectrum. It is currently used by followers of Marxism, Marxism–Leninism, Maoism ...
—the term "Provisional Sinn Féin" has fallen out of use, and the party is now known simply as "Sinn Féin".
Sinn Féin members have been referred to colloquially as "Shinners", a term intended as a
pejorative
A pejorative word, phrase, slur, or derogatory term is a word or grammatical form expressing a negative or disrespectful connotation, a low opinion, or a lack of respect toward someone or something. It is also used to express criticism, hosti ...
.
History
1905–1922
Sinn Féin was founded on 28 November 1905, when, at the first annual Convention of the National Council,
Arthur Griffith outlined the Sinn Féin policy, "to establish in Ireland's capital a national legislature endowed with the moral authority of the Irish nation".
Its initial political platform was both
conservative
Conservatism is a cultural, social, and political philosophy and ideology that seeks to promote and preserve traditional institutions, customs, and values. The central tenets of conservatism may vary in relation to the culture and civiliza ...
and
monarchist, advocating for an Anglo-Irish
dual monarchy unified with the British
Crown (inspired by the
Austro-Hungarian Compromise of 1867
The Austro-Hungarian Compromise of 1867 (, ) established the dual monarchy of Austria-Hungary, which was a military and diplomatic alliance of two sovereign states. The Compromise only partially re-established the former pre-1848 sovereign ...
). The party contested the
1908 North Leitrim by-election, where it secured 27% of the vote. Thereafter, both support and membership fell. At its 1910 ''ard fheis'' (party conference) attendance was poor, and there was difficulty finding members willing to take seats on the executive.

In 1914, Sinn Féin members, including Griffith, joined the anti-Redmond
Irish Volunteers, which was referred to by
Redmondites and others as the "Sinn Féin Volunteers". Although Griffith himself did not take part in the
Easter Rising
The Easter Rising (), also known as the Easter Rebellion, was an armed insurrection in Ireland during Easter Week in April 1916. The Rising was launched by Irish republicans against British rule in Ireland with the aim of establishing an ind ...
of 1916, many Sinn Féin members who were members of the Volunteers and the
Irish Republican Brotherhood did. Government and newspapers dubbed the Rising "the Sinn Féin Rising". After the Rising,
republicans came together under the banner of Sinn Féin, and at the 1917 ''ard fheis'' the party committed itself for the first time to the establishment of an
Irish Republic
The Irish Republic ( or ) was a Revolutionary republic, revolutionary state that Irish Declaration of Independence, declared its independence from the United Kingdom of Great Britain and Ireland in January 1919. The Republic claimed jurisdict ...
. In the
1918 general election, Sinn Féin won 73 of Ireland's 105 seats, and in January 1919, its MPs assembled in Dublin and proclaimed themselves
Dáil Éireann
Dáil Éireann ( ; , ) is the lower house and principal chamber of the Oireachtas, which also includes the president of Ireland and a senate called Seanad Éireann.Article 15.1.2° of the Constitution of Ireland reads: "The Oireachtas shall co ...
, the parliament of Ireland. Sinn Féin candidate
Constance Markievicz became the first woman elected to the
United Kingdom House of Commons. However, in line with Sinn Féin
abstentionist policy, she did not take her seat in the House of Commons.
The party supported the
Irish Republican Army
The Irish Republican Army (IRA) is a name used by various Resistance movement, resistance organisations in Ireland throughout the 20th and 21st centuries. Organisations by this name have been dominantly Catholic and dedicated to anti-imperiali ...
during the
War of Independence
Wars of national liberation, also called wars of independence or wars of liberation, are conflicts fought by nations to gain independence. The term is used in conjunction with wars against foreign powers (or at least those perceived as foreign) ...
, and members of the Dáil government negotiated the
Anglo-Irish Treaty
The 1921 Anglo-Irish Treaty (), commonly known in Ireland as The Treaty and officially the Articles of Agreement for a Treaty Between Great Britain and Ireland, was an agreement between the government of the United Kingdom of Great Britain an ...
with the British government in 1921. In the Dáil debates that followed, the party divided on the Treaty. The pro-Treaty and anti-Treaty components (led by
Michael Collins and
Éamon de Valera
Éamon de Valera (; ; first registered as George de Valero; changed some time before 1901 to Edward de Valera; 14 October 1882 – 29 August 1975) was an American-born Irish statesman and political leader. He served as the 3rd President of Ire ...
respectively) managed to agree on a "Coalition Panel" of Sinn Féin candidates to stand in the
1922 general election. After the election, anti-Treaty members walked out of the Dáil, and pro- and anti-Treaty members took opposite sides in the ensuing
Civil War
A civil war is a war between organized groups within the same Sovereign state, state (or country). The aim of one side may be to take control of the country or a region, to achieve independence for a region, or to change government policies.J ...
.
1923–1970
Pro-Treaty Dáil deputies and other Treaty supporters formed a new party,
Cumann na nGaedheal, on 27 April 1923 at a meeting in Dublin, where delegates agreed on a constitution and political programme. Cumann na nGaedheal went on to govern the new
Irish Free State
The Irish Free State (6 December 192229 December 1937), also known by its Irish-language, Irish name ( , ), was a State (polity), state established in December 1922 under the Anglo-Irish Treaty of December 1921. The treaty ended the three-ye ...
for nine years (it merged with two other organisations to form
Fine Gael
Fine Gael ( ; ; ) is a centre-right, liberal-conservative, Christian democratic political party in Ireland. Fine Gael is currently the third-largest party in the Republic of Ireland in terms of members of Dáil Éireann. The party had a member ...
in 1933). Anti-Treaty Sinn Féin members continued to boycott the Dáil. At a special ''Ard Fheis'' in March 1926, de Valera proposed that elected members be allowed to take their seats in the Dáil if and when the controversial
Oath of Allegiance was removed. When his motion was defeated, de Valera resigned from Sinn Féin; on 16 May 1926, he founded his own party,
Fianna Fáil
Fianna Fáil ( ; ; meaning "Soldiers of Destiny" or "Warriors of Fál"), officially Fianna Fáil – The Republican Party (), is a centre to centre-right political party in Ireland.
Founded as a republican party in 1926 by Éamon de ...
, which was dedicated to republicanising the Free State from within its political structures. He took most Sinn Féin
Teachtaí Dála (TDs) with him. De Valera's resignation meant also the loss of financial support from America. The rump Sinn Féin party could field no more than fifteen candidates,
[The Times, ''350 Candidates For 152 Seats'', 2 June 1927.] and won only five seats in the
June 1927 general election, a decline in support not seen since before 1916.
The Times
''The Times'' is a British Newspaper#Daily, daily Newspaper#National, national newspaper based in London. It began in 1785 under the title ''The Daily Universal Register'', adopting its modern name on 1 January 1788. ''The Times'' and its si ...
, ''Mr. Cosgrave and the Oath'', 30 August 1927. Vice-president and leader
Mary MacSwiney announced that the party simply did not have the funds to contest
the second election called that year, declaring "no true Irish citizen can vote for any of the other parties".
Fianna Fáil came to power at the
1932 general election (to begin what would be an unbroken 16-year spell in government) and went on to long dominate politics in the independent Irish state.
An attempt in the 1940s to access funds that had been put in the care of the
High Court led to the
Sinn Féin Funds case, which the party lost and in which the judge ruled that it was not the legal successor to the Sinn Féin of 1917.
By the late 1940s, two decades removed from the Fianna Fáil split and now the Sinn Féin funds lost, the party was little more than a husk. The emergence of a popular new republican party, led by former IRA members, in
Clann na Poblachta, threatened to void any remaining purpose Sinn Féin had left. However, it was around this same time that the IRA leadership once again sought to have a political arm (the IRA and Sinn Féin had effectively no formal ties following the civil war). Following an IRA army convention in 1948, IRA members were instructed to join Sinn Féin en masse and by 1950 they had successfully taken total control of the party, with IRA army council member
Paddy McLogan named as the new president of the party. As part of this rapprochement, it was later made clear by the army council that the IRA would dictate to Sinn Féin, and not the other way around.
At the
1955 United Kingdom general election
The 1955 United Kingdom general election was held on Thursday 26 May 1955. It was a snap election: Anthony Eden called the election after succeeding Winston Churchill, Churchill in April 1955 to secure a mandate. The Eden ministry, government wo ...
, two Sinn Féin candidates were elected to Westminster, and likewise, four members of Sinn Féin were elected to Leinster House in the
1957 Irish general election. In December 1956, at the beginning of the IRA's
Border Campaign (Operation Harvest), the Northern Ireland Government banned Sinn Féin under the
Special Powers Act; it would remain banned until 1974. By the end of the Border campaign five years later, the party had once again lost all national representation. Through the 1960s, some leading figures in the movement, such as
Cathal Goulding,
Seán Garland,
Billy McMillen,
Tomás Mac Giolla, moved steadily to the left, even to
Marxism
Marxism is a political philosophy and method of socioeconomic analysis. It uses a dialectical and materialist interpretation of historical development, better known as historical materialism, to analyse class relations, social conflict, ...
, as a result of their own reading and thinking and contacts with the Irish and international left. This angered more traditional republicans, who wanted to stick to the national question and armed struggle. The Garland Commission was set up in 1967, to investigate the possibility of ending abstentionism. Its report angered the already disaffected traditional republican element within the party, notably
Seán Mac Stíofáin and Ruairí Ó Brádaigh, who viewed such a policy as treason against the Irish Republic.
1970–1975
Sinn Féin split in two at the beginning of 1970. On 11 January, the proposal to end abstentionism and take seats, if elected, in the Dáil, the
Parliament of Northern Ireland and the Parliament of the United Kingdom was put before the members at the party's ''Ard Fheis''. A similar motion had been adopted at an IRA convention the previous month, leading to the formation of a Provisional Army Council by Mac Stíofáin and other members opposed to the leadership. When the motion was put to the ''Ard Fheis'', it failed to achieve the necessary two-thirds majority. The Executive attempted to circumvent this by introducing a motion in support of IRA policy, at which point the dissenting delegates walked out of the meeting. These members reconvened at Kevin Barry Hall in
Parnell Square, where they appointed a Caretaker Executive with Ruairí Ó Brádaigh as chairman. The Caretaker Executive's first act was to pass a
resolution pledging allegiance to the 32-county Irish Republic and the Provisional Army Council. It also declared itself opposed to the ending of abstentionism, the drift towards "extreme forms of socialism", the failure of the leadership to defend the nationalist people of Belfast during the
1969 Northern Ireland riots, and the expulsion of traditional republicans by the leadership during the 1960s.
At its October 1970 ''Ard Fheis'', delegates were informed that an IRA convention had been held and had regularised its structure, bringing to an end the "provisional" period. By then, however, the label "Provisional" or "Provo" was already being applied to them by the media. The opposing, anti-abstentionist party became known as "Official Sinn Féin". It changed its name in 1977 to "Sinn Féin—The Workers' Party", and in 1982 to "
The Workers' Party".
Because the "Provisionals" were committed to military rather than political action, Sinn Féin's initial membership was largely confined, in
Danny Morrison's words, to men "over military age or women". A Sinn Féin organiser of the time in
Belfast
Belfast (, , , ; from ) is the capital city and principal port of Northern Ireland, standing on the banks of the River Lagan and connected to the open sea through Belfast Lough and the North Channel (Great Britain and Ireland), North Channel ...
described the party's role as "agitation and publicity" New ''cumainn'' (branches) were established in Belfast, and a new newspaper, ''
Republican News'', was published. Sinn Féin took off as a protest movement after the introduction of
internment
Internment is the imprisonment of people, commonly in large groups, without Criminal charge, charges or Indictment, intent to file charges. The term is especially used for the confinement "of enemy citizens in wartime or of terrorism suspects ...
in August 1971, organising marches and pickets. The party launched its platform, ''
Éire Nua
Éire Nua, or "New Ireland", was a proposal supported by the Provisional IRA and Sinn Féin during the 1970s and early 1980s for a Federation, federal United Ireland. The proposal was particularly associated with the Dublin-based leadership group ...
'' ("a New Ireland") at the 1971 ''Ard Fheis''. In general, however, the party lacked a distinct political philosophy. In the words of Brian Feeney, "Ó Brádaigh would use Sinn Féin ''ard fheiseanna'' (party conferences) to announce republican policy, which was, in effect, IRA policy, namely that Britain should leave the North or the 'war' would continue".
In May 1974, a few months after the
Sunningdale Agreement
The Sunningdale Agreement was an attempt to establish a power-sharing Northern Ireland Executive and a cross-border Council of Ireland. The agreement was signed by the British and Irish government in Sunningdale, Berkshire, on 9 December 1 ...
, the ban on Sinn Féin was lifted by the UK
Secretary of State for Northern Ireland. Sinn Féin was given a concrete presence in the community when the
IRA declared a ceasefire in 1975. 'Incident centres', manned by Sinn Féin members, were set up to communicate potential confrontations to the British authorities.
From 1976, there was a broadcasting ban on Sinn Féin representatives in the Republic of Ireland, after the
Minister for Posts and Telegraphs,
Conor Cruise O'Brien
Donal Conor David Dermot Donat Cruise O'Brien (3 November 1917 – 18 December 2008), often nicknamed "The Cruiser", was an Irish diplomat, politician, writer, historian and academic, who served as Minister for Posts and Telegraphs from 1973 ...
, amended
Section 31 of the Broadcasting Act. This prevented
RTÉ
(; ; RTÉThe É in RTÉ is pronounced as an English E () and not an Irish É ()) is an Irish public service broadcaster. It both produces and broadcasts programmes on television, radio and online. The radio service began on 1 January 1926, ...
interviewing Sinn Féin spokespersons under any circumstances, even where the subject was not related to the Northern Ireland conflict. This lasted until 1994.
1976–1983
Political status for prisoners became an issue after the ending of the truce. Rees released the last of the internees, and ended '
Special Category Status' for all prisoners convicted after 1 March 1976. This led first to the
blanket protest, and then to the
dirty protest. Around the same time,
Gerry Adams
Gerard Adams (; born 6 October 1948) is a retired Irish Republican politician who was the president of Sinn Féin between 13 November 1983 and 10 February 2018, and served as a Teachta Dála (TD) for Louth from 2011 to 2020. From 1983 to 19 ...
began writing for ''Republican News'', calling for Sinn Féin to become more involved politically. Over the next few years, Adams and those aligned with him would extend their influence throughout the republican movement and slowly marginalise Ó Brádaigh, part of a general trend of power in both Sinn Féin and the IRA shifting north. In particular, Ó Brádaigh's part in the 1975 IRA ceasefire had damaged his reputation in the eyes of northern republicans.
The prisoners' protest climaxed with the
1981 hunger strike, during which striker
Bobby Sands was elected Member of Parliament for
Fermanagh and South Tyrone as an
Anti H-Block candidate. After his death on hunger strike, his seat was held, with an increased vote, by his election agent,
Owen Carron. Two other Anti H-Block candidates were elected to
Dáil Éireann
Dáil Éireann ( ; , ) is the lower house and principal chamber of the Oireachtas, which also includes the president of Ireland and a senate called Seanad Éireann.Article 15.1.2° of the Constitution of Ireland reads: "The Oireachtas shall co ...
in the
general election in the Republic. These successes convinced republicans that they should contest every election. Danny Morrison expressed the mood at the 1981 ''Ard Fheis'' when he said:
This was the origin of what became known as the
Armalite and ballot box strategy. Ó Brádaigh's chief policy, a plan for a federalised Irish state dubbed ''
Éire Nua
Éire Nua, or "New Ireland", was a proposal supported by the Provisional IRA and Sinn Féin during the 1970s and early 1980s for a Federation, federal United Ireland. The proposal was particularly associated with the Dublin-based leadership group ...
'', was dropped in 1982, and the following year Ó Brádaigh stepped down as president, and was replaced by Adams.
1983–1998

Under Adams' leadership electoral politics became increasingly important. In 1983
Alex Maskey was elected to
Belfast City Council
Belfast City Council () is the Local government in Northern Ireland, local authority with responsibility for part of Belfast, the largest city of Northern Ireland. The council serves an estimated population of (), the largest of any district c ...
, the first Sinn Féin member to sit on that body. Sinn Féin polled over 100,000 votes in the
Westminster elections that year, and Adams won the
West Belfast seat that had been held by the
Social Democratic and Labour Party
The Social Democratic and Labour Party (SDLP; ) is a social democratic and Irish nationalist political party in Northern Ireland. The SDLP currently has eight members in the Northern Ireland Assembly ( MLAs) and two members of Parliament (M ...
(SDLP).
By 1985 it had 59 seats on seventeen of the 26 Northern Ireland councils, including seven on Belfast City Council.
The party began a reappraisal of the policy of abstention from the Dáil. At the 1983 ''Ard Fheis'' the constitution was amended to remove the ban on the discussion of abstentionism to allow Sinn Féin to run a candidate in the forthcoming European elections. However, in his address, Adams said, "We are an abstentionist party. It is not my intention to advocate change in this situation." A motion to permit entry into the Dáil was allowed at the 1985 ''Ard Fheis'', but did not have the active support of the leadership, and it failed narrowly. By October of the following year an IRA Convention had indicated its support for elected Sinn Féin TDs taking their seats. Thus, when the motion to end abstention was put to the ''Ard Fheis'' on 1 November 1986, it was clear that there would not be a split in the IRA as there had been in 1970. The motion was passed with a two-thirds majority. Ó Brádaigh and about twenty other delegates walked out, and met in a Dublin hotel with hundreds of supporters to re-organise as
Republican Sinn Féin.
In October 1988, the British Conservative government followed the Republic in banning broadcasts of Sinn Féin representatives. Prime Minister
Margaret Thatcher
Margaret Hilda Thatcher, Baroness Thatcher (; 13 October 19258 April 2013), was a British stateswoman who served as Prime Minister of the United Kingdom from 1979 to 1990 and Leader of the Conservative Party (UK), Leader of th ...
said it would "deny terrorists the oxygen of publicity". Broadcasters quickly found ways around the ban, mainly by using actors to dub the voices of banned speakers. The legislation did not apply during election campaigns and under certain other circumstances. The ban lasted until 1994.
Tentative negotiations between Sinn Féin and the British government led to more substantive discussions with the SDLP in the 1990s. Multi-party negotiations began in 1994 in Northern Ireland, without Sinn Féin. The Provisional IRA declared a ceasefire in August 1994. Sinn Féin then joined the talks, but the
Conservative
Conservatism is a cultural, social, and political philosophy and ideology that seeks to promote and preserve traditional institutions, customs, and values. The central tenets of conservatism may vary in relation to the culture and civiliza ...
government under
John Major
Sir John Major (born 29 March 1943) is a British retired politician who served as Prime Minister of the United Kingdom and Leader of the Conservative Party (UK), Leader of the Conservative Party from 1990 to 1997. Following his defeat to Ton ...
soon came to depend on unionist votes to remain in power. It suspended Sinn Féin from the talks, and began to insist that the IRA decommission all of their weapons before Sinn Féin be re-admitted to the talks; this led to the IRA calling off its ceasefire. The new
Labour government of
Tony Blair
Sir Anthony Charles Lynton Blair (born 6 May 1953) is a British politician who served as Prime Minister of the United Kingdom from 1997 to 2007 and Leader of the Labour Party (UK), Leader of the Labour Party from 1994 to 2007. He was Leader ...
was not reliant on unionist votes and re-admitted Sinn Féin, leading to another, permanent, ceasefire.
The talks led to the
Good Friday Agreement of 10 April 1998, which set up an inclusive devolved government in Northern Ireland, and altered the Dublin government's constitutional claim to the whole island in
Articles 2 and 3 of the Constitution of Ireland. Republicans opposed to the direction taken by Sinn Féin in the peace process formed the
32 County Sovereignty Movement in the late 1990s.
1998–2017
At the
1997 Irish general election,
Caoimhghín Ó Caoláin
Caoimhghín Ó Caoláin (; born 18 September 1953) is an Irish former Sinn Féin politician who served as a Teachta Dála (TD) for the Cavan–Monaghan (Dáil constituency), Cavan–Monaghan constituency from 1997 to 2020. Ó Caoláin's victory ...
was elected to the Dáil. In doing so, he became the first person under the "Sinn Féin" banner to be elected to Leinster House since
1957
Events January
* January 1 – The Saarland joins West Germany.
* January 3 – Hamilton Watch Company introduces the first electric watch.
* January 5 – South African player Russell Endean becomes the first batsman to be Dismissal (cricke ...
, and the first since 1922 to take their seat. Ó Caoláin's entry to the Dáil marked the beginning of a continuous Sinn Féin presence in the Republic of Ireland's national political bodies.
The party expelled
Denis Donaldson, a party official, in December 2005, with him stating publicly that he had been in the employ of the British government as an agent since the 1980s. Donaldson told reporters that the British security agencies who employed him were behind the collapse of the Assembly and set up Sinn Féin to take the blame for it, a claim disputed by the British government. Donaldson was found fatally shot in his home in
County Donegal
County Donegal ( ; ) is a Counties of Ireland, county of the Republic of Ireland. It is in the Provinces of Ireland, province of Ulster and is the northernmost county of Ireland. The county mostly borders Northern Ireland, sharing only a small b ...
on 4 April 2006, and a murder inquiry was launched. In April 2009, the
Real IRA
The Real Irish Republican Army, or Real IRA (RIRA), was a Dissident republican, dissident Irish republican paramilitary group that aimed to bring about a United Ireland. It was formed in 1997 following a split in the Provisional Irish Republica ...
released a statement taking responsibility for the killing.
When Sinn Féin and the Democratic Unionist Party (DUP) became the largest parties, by the terms of the Good Friday Agreement no deal could be made without the support of both parties. They nearly reached a deal in November 2004, but the DUP insisted on photographic or video evidence that
decommissioning of IRA weapons had been carried out, which was unacceptable to Sinn Féin.
In April 2006, a number of members of Sinn Féin who believed the party was not committed enough to socialism split from the party and formed a new group called
Éirígí, which later became a (minor) political party in its own right.
On 2 September 2006, Martin McGuinness publicly stated that Sinn Féin would refuse to participate in a shadow assembly at Stormont, asserting that his party would only take part in negotiations that were aimed at restoring a power-sharing government. This development followed a decision on the part of members of Sinn Féin to refrain from participating in debates since the Assembly's recall the previous May. The relevant parties to these talks were given a deadline of 24 November 2006 to decide upon whether or not they would ultimately form the executive.
The 86-year Sinn Féin boycott of policing in Northern Ireland ended on 28 January 2007, when the ''Ard Fheis'' voted overwhelmingly to support the
Police Service of Northern Ireland (PSNI). Sinn Féin members began to sit on Policing Boards and join District Policing Partnerships. There was opposition to this decision within Sinn Féin, and some members left, including elected representatives. The most well-known opponent was former IRA prisoner
Gerry McGeough, who stood in the
2007 Assembly election against Sinn Féin in the constituency of
Fermanagh and South Tyrone, as an Independent Republican. He polled 1.8% of the vote. Others who opposed this development left to found the
Republican Network for Unity.
Sinn Féin supported a no vote in the referendum on the
Twenty-eighth Amendment of the Constitution Bill 2008.
Immediately after the
June 2017 UK general election, where the Conservatives won 49% of seats but not an overall majority, so that non-mainstream parties could have significant influence, Gerry Adams announced for Sinn Féin that their elected MPs would continue the policy of not swearing
allegiance to the Queen, as would be required for them to take their seats in the Westminster Parliament.
In 2017 and 2018, there were allegations of bullying within the party, leading to a number of resignations and expulsions of elected members.
At the ''Ard Fheis'' on 18 November 2017, Gerry Adams announced he would stand down as president of Sinn Féin in 2018, and would not stand for re-election as TD for
Louth.
2018–present
On 10 February 2018,
Mary Lou McDonald was announced as the new president of Sinn Féin at a special Ard Fheis in Dublin.
Michelle O'Neill was also elected as vice president of the party.
Sinn Féin were opposed to Northern Ireland
leaving the European Union together with the rest of the United Kingdom, with
Martin McGuinness suggesting a referendum on the
reunification of Ireland immediately after the
2016 United Kingdom European Union membership referendum
The 2016 United Kingdom European Union membership referendum, commonly referred to as the EU referendum or the Brexit referendum, was a referendum that took place on 23 June 2016 in the United Kingdom (UK) and Gibraltar under the provisions o ...
results were announced, a stance later reiterated by McDonald as a way of resolving the
border issues raised by Brexit.
Sinn Féin's first elections under McDonald resulted in the party performing well under its own expectations during the
2018 Irish presidential election that October,
and similarly, the party's performance was labelled "disastrous" during the concurrent May
2019 European Parliament election in Ireland
The 2019 European Parliament election in Ireland is the Irish component of the 2019 European Parliament election and was held on Friday, 24 May 2019, on the same day as the 2019 Irish local elections, 2019 local elections and a Thirty-eighth ...
and
2019 Irish local elections. In the European elections, Sinn Féin lost 2 MEPs and dropped their vote share by 7.8%, while in the local elections the party lost 78 (almost half) of their local councillors and dropped their vote share by 5.7%. McDonald stated "It was a really bad day out for us. But sometimes that happens in politics, and it's a test for you. I mean it's a test for me personally, obviously, as the leader".
However, in the
2020 Irish general election, Sinn Féin received the greatest number of first preference votes nationally, making it the best result for any incarnation of Sinn Féin since
the 1922 election.
Fianna Fáil
Fianna Fáil ( ; ; meaning "Soldiers of Destiny" or "Warriors of Fál"), officially Fianna Fáil – The Republican Party (), is a centre to centre-right political party in Ireland.
Founded as a republican party in 1926 by Éamon de ...
,
Fine Gael
Fine Gael ( ; ; ) is a centre-right, liberal-conservative, Christian democratic political party in Ireland. Fine Gael is currently the third-largest party in the Republic of Ireland in terms of members of Dáil Éireann. The party had a member ...
and the
Green Party formed a coalition government in June 2020. Although second on seats won at the election, Sinn Féin became the largest party in the Dáil when
Marc MacSharry resigned from
Fianna Fáil
Fianna Fáil ( ; ; meaning "Soldiers of Destiny" or "Warriors of Fál"), officially Fianna Fáil – The Republican Party (), is a centre to centre-right political party in Ireland.
Founded as a republican party in 1926 by Éamon de ...
in September 2021, which, with
Seán Ó Fearghaíl sitting as
Ceann Comhairle, left Sinn Féin the largest party by one seat. Sinn Féin lost their numerical advantage in February 2022 following the resignation of
Violet-Anne Wynne.
In November 2020, the national chairman of Sinn Féin
Declan Kearney contacted several dissident republican political parties such as
Saoradh,
Republican Network for Unity and the
Irish Republican Socialist Party about creating a united republican campaign to call for a referendum on Irish unification. This information did not become publicly known until 2022 and the move was criticised in some quarters on the basis that it would be wrong for Sinn Féin to work with dissident republican groups which do not repudiate violence by paramilitaries. Sinn Féin retorted that engaging with dissident republicans draws them into the democratic process and political solutions instead of violent ones.
Sinn Féin won 29% of the
first-preference votes in the
2022 Northern Ireland Assembly election, the highest share of any party. With 27 out of 90 seats, they became the largest party in Stormont for the first time ever. "Today ushers in a new era", O'Neill said shortly before the final results were announced. "Irrespective of religious, political or social backgrounds, my commitment is to make politics work."
Following the
2023 Northern Ireland local elections, Sinn Féin became the largest party in local government for the first time. Then, in the local elections in the Republic of Ireland
in 2024, Sinn Féin increased their vote share, however, significantly fell short of the polls, showcasing a divide between the party's leadership and grassroots over immigration, with disgruntled Sinn Féin voters voting instead for small right-wing parties. However, following the
2024 United Kingdom general election
The 2024 United Kingdom general election was held on Thursday, 4 July 2024 to elect all 650 members of the House of Commons of the United Kingdom, House of Commons. The opposition Labour Party (UK), Labour Party, led by Keir Starmer, won a lan ...
, Sinn Féin became the single largest party representing Northern Ireland in Westminster.
Past links with Republican paramilitaries
Sinn Féin is the largest
Irish republican political party, and was historically associated with the
Irish Republican Army
The Irish Republican Army (IRA) is a name used by various Resistance movement, resistance organisations in Ireland throughout the 20th and 21st centuries. Organisations by this name have been dominantly Catholic and dedicated to anti-imperiali ...
, while also having been associated with the
Provisional Irish Republican Army
The Provisional Irish Republican Army (Provisional IRA), officially known as the Irish Republican Army (IRA; ) and informally known as the Provos, was an Irish republican paramilitary force that sought to end British rule in Northern Ireland ...
in the party's modern incarnation. The Irish government alleged that senior members of Sinn Féin have held posts on the
IRA Army Council. However, the SF leadership has denied these claims.
A republican document of the early 1980s stated: "Both Sinn Féin and the IRA play different but converging roles in the war of national liberation. The Irish Republican Army wages an armed campaign... Sinn Féin maintains the propaganda war and is the public and political voice of the movement". Robert White states at that time Sinn Féin was the junior partner in the relationship with the IRA, and they were separate organisations despite there being some overlapping membership.
Because of the party's links to the Provisional IRA, the
U.S. Department of State barred its members along with IRA volunteers from entering the U.S. since the early 1970s in accordance with the
Immigration and Nationality Act on the grounds that they were associated with the IRA waging war against a legitimate government.
The
British government
His Majesty's Government, abbreviated to HM Government or otherwise UK Government, is the central government, central executive authority of the United Kingdom of Great Britain and Northern Ireland. stated in 2005 that "we had always said all the way through we believed that Sinn Féin and the IRA were inextricably linked and that had obvious implications at leadership level".
The
Northern Bank robbery of £26.5 million in Belfast in December 2004 further delayed a political deal in Northern Ireland. The IRA were widely blamed for the robbery, although Sinn Féin denied this and stated that party officials had not known of the robbery nor sanctioned it. Because of the timing of the robbery, it is considered that the plans for the robbery must have been laid whilst Sinn Féin was engaged in talks about a possible peace settlement. This undermined confidence among
unionists about the sincerity of republicans towards reaching agreement. In the aftermath of the row over the robbery, a further controversy erupted when, on
RTÉ
(; ; RTÉThe É in RTÉ is pronounced as an English E () and not an Irish É ()) is an Irish public service broadcaster. It both produces and broadcasts programmes on television, radio and online. The radio service began on 1 January 1926, ...
's ''
Questions and Answers'' programme, the chairman of Sinn Féin,
Mitchel McLaughlin, insisted that the IRA's controversial killing of a mother of ten young children,
Jean McConville, in the early 1970s though "wrong", was not a crime, as it had taken place in the context of the political conflict. Politicians from the Republic, along with the Irish media, strongly attacked McLaughlin's comments.
On 10 February 2005, the government-appointed
Independent Monitoring Commission reported that it firmly supported the
PSNI and
Garda Síochána
(; meaning "the Guardian(s) of the Peace") is the national police and security service of Republic of Ireland, Ireland. It is more commonly referred to as the Gardaí (; "Guardians") or "the Guards". The service is headed by the Garda Commissio ...
assessments that the IRA was responsible for the Northern Bank robbery and that certain senior members of Sinn Féin were also senior members of the IRA and would have had knowledge of and given approval to the carrying out of the robbery. Sinn Féin has argued that the IMC is not independent, and that the inclusion of former
Alliance Party leader
John Alderdice and a British security head was proof of this. The IMC recommended further financial sanctions against Sinn Féin members of the Northern Ireland Assembly. The British government responded by saying it would ask MPs to vote to withdraw the parliamentary allowances of the four Sinn Féin MPs elected in 2001.
Gerry Adams responded to the IMC report by challenging the Irish government to have him arrested for IRA membership—a crime in both jurisdictions—and for
conspiracy
A conspiracy, also known as a plot, ploy, or scheme, is a secret plan or agreement between people (called conspirers or conspirators) for an unlawful or harmful purpose, such as murder, treason, or corruption, especially with a political motivat ...
.
On 20 February 2005,
Irish Minister for Justice, Equality and Law Reform Michael McDowell publicly accused three of the Sinn Féin leadership, Gerry Adams,
Martin McGuinness and
Martin Ferris (TD for
Kerry North) of being on the seven-man IRA Army Council; they later denied this.
On 27 February 2005, a demonstration against the murder of
Robert McCartney on 30 January 2005 was held in east Belfast.
Alex Maskey, a former Sinn Féin
Lord Mayor of Belfast, was told by relatives of McCartney to "hand over the 12" IRA members involved. The McCartney family, although formerly Sinn Féin voters themselves, urged witnesses to the crime to contact the PSNI. Three IRA men were expelled from the organisation, and a man was charged with McCartney's murder.
Irish
Taoiseach
The Taoiseach (, ) is the head of government or prime minister of Republic of Ireland, Ireland. The office is appointed by the President of Ireland upon nomination by Dáil Éireann (the lower house of the Oireachtas, Ireland's national legisl ...
Bertie Ahern
Bartholomew Patrick "Bertie" Ahern (born 12 September 1951) is an Irish former Fianna Fáil politician who served as Taoiseach from 1997 to 2008, and as Leader of Fianna Fáil from 1994 to 2008. A Teachta Dála (TD) from 1977 to 2011, he served ...
subsequently called Sinn Féin and the IRA "both sides of the same coin". In February 2005
Dáil Éireann
Dáil Éireann ( ; , ) is the lower house and principal chamber of the Oireachtas, which also includes the president of Ireland and a senate called Seanad Éireann.Article 15.1.2° of the Constitution of Ireland reads: "The Oireachtas shall co ...
passed a motion condemning the party's alleged involvement in illegal activity. The
Bush Administration did not invite Sinn Féin or any other Northern Irish political party to the annual
St Patrick's Day celebrations at the
White House
The White House is the official residence and workplace of the president of the United States. Located at 1600 Pennsylvania Avenue Northwest (Washington, D.C.), NW in Washington, D.C., it has served as the residence of every U.S. president ...
, choosing instead to invite the family of Robert McCartney. Senator
Ted Kennedy, a regular sponsor of Gerry Adams' visits to the US during the peace process, also refused to meet Adams and hosted the McCartney family instead.
On 10 March 2005, the
House of Commons
The House of Commons is the name for the elected lower house of the Bicameralism, bicameral parliaments of the United Kingdom and Canada. In both of these countries, the Commons holds much more legislative power than the nominally upper house of ...
in London passed without significant opposition a motion, introduced by the British government, to withdraw the allowances of the four Sinn Féin MPs for one year, in response to the Northern Bank Robbery. This measure cost the party approximately £400,000. However, the debate prior to the vote mainly surrounded the more recent events connected with the murder of Robert McCartney. Conservatives and unionists put down amendments to have the Sinn Féin MPs evicted from their offices at the House of Commons but these were defeated.
In March 2005,
Mitchell Reiss, the
United States Special Envoy for Northern Ireland, condemned the party's links to the IRA, saying "it is hard to understand how a European country in the year 2005 can have a private army associated with a political party".
The October 2015
Assessment on Paramilitary Groups in Northern Ireland concluded that the Provisional IRA still existed "in a much reduced form", and that some IRA members believed its Army Council oversaw both the IRA and Sinn Féin, although it believed that the leadership "remains committed to the peace process and its aim of achieving a united Ireland by political means".
Organisation and structure
Sinn Féin operates under the principle of
democratic centralism;
the concept that policy should be debated internally within the party, and once a decision is made, all members must support the chosen policy publicly or be disciplined. Once a decision has been made, it cannot be revisited or altered for a prolonged period of time.
Decision-making within Sinn Féin is controlled by two bodies; the national officer board and the Árd Comhairle (national executive).
The national officer board consists of 7 members, made up of the President of Sinn Féin, the Vice President, the chairperson, the General Secretary, the Director of Publicity and two treasurers.
Policy will be debated amongst the national officer board before next being brought before the Árd Comhairle.
Sinn Féin's Árd Comhairle consists of 47 members. Members of the national officer board are automatically members, while the rest of the membership is made up of officers elected at Sinn Féin's annual national conference (
Ard Fheis). Members of the Árd Comhairle must already be members of the Comhairlí Limistéir (Area councils), which are based county or constituency boundaries.
, despite the fact that the bulk majority of Sinn Féin's membership and elected representatives come from the Republic of Ireland, the majority of the Árd Comhairle is from Northern Ireland.
For every 2 TDs on the Árd Comhairle, there are 3 MLAs.
Some members of the Árd Comhairle hold no public office and are former members of the Provisional IRA.
When a decision is made by the Árd Comhairle, all members of Sinn Féin must abide by it without dissent, including the President. In 2020, all of Sinn Féin's candidates in the 2020 Irish general election were required to sign a pledge stating "in all matters pertaining to the duties and functions of an elected representative, I will be guided by and hold myself amenable to all directions and instructions issued to me by An Ard Chomhairle of Sinn Féin".
Within the Árd Comhairle, there is a further subdivision, called the Coiste Seasta (Standing Committee), made up of 8 members, who act as a
Central Committee.
Unlike other Teachtaí Dála from other parties, Sinn Féin TDs are not allowed to hire their own staff and instead the Coiste Seasta chooses staff for them. Some Sinn Féin TDs have complained of these staff members handing them scripts to read publicly which they had no input into writing.
Some critics inside Sinn Féin have opined that decision-making in the party rests with the officer board and that the Árd Comhairle serves merely to
rubberstamp decisions that have already been made.
External critics have called Sinn Féin's organisation and structure "opaque", "hierarchical", "confusing" and "undemocratic".
Former Sinn Féin TD
Peadar Tóibín claimed in 2020 that Sinn Féin TDs have "zero influence" over party policy, and that all decisions ultimately rested with the national officer board.
It was also in 2020 that both Fine Gael and Fianna Fáil criticised Sinn Féin's organisation, with
Patrick O'Donovan of Fine Gael stating "the fact that Sinn Féin reps sign a pledge which says they will be guided by their Ard Chomhairle, a council of people not elected by the public, rather than those who elect them, is an outright affront to democracy". In 2022 the left-wing political magazine ''
Village
A village is a human settlement or community, larger than a hamlet but smaller than a town with a population typically ranging from a few hundred to a few thousand. Although villages are often located in rural areas, the term urban v ...
'' opined that while all major political parties in Ireland are influenced by unelected individuals, Sinn Féin is disproportionally controlled by a "backroom regime", and alleged that the Coiste Seasta, made up of unelected Northerners and former IRA members, holds the power to influence the decisions of TDs.
Sinn Féin denies the allegations that its structure is undemocratic and has compared its organisation to other Irish political parties such as Fianna Fáil.
Sinn Féin maintains it is a bottom-up, not a top-down organisation and that, ultimately, decision-making comes from its annual Ard Fhéis and the votes of ordinary members.
In 2020 Mary Lou McDonald dismissed suggestions that Sinn Féin, including herself, were controlled by "shadowy figures" as an idea rooted in sexism. In 2020 she stated "I have a strong sense that there is at least an undertone of sexism and misogyny in suggesting that our strings are pulled. I'm very stubborn. I'm very willful. I know my own mind and God help anybody who tries to pull my strings or tell me what to do". while in 2021 she stated that people needed to get over the "sexist" idea that "this woman couldn't possibly be really the leader of Sinn Féin. Well guess what? I really am, boys".
Ideology and policies
Sinn Féin is an
Irish republican,
democratic socialist
Democratic socialism is a left-wing economic and political philosophy that supports political democracy and some form of a socially owned economy, with a particular emphasis on economic democracy, workplace democracy, and workers' self-mana ...
and
left-wing
Left-wing politics describes the range of Ideology#Political ideologies, political ideologies that support and seek to achieve social equality and egalitarianism, often in opposition to social hierarchy either as a whole or of certain social ...
party. In the
European Parliament
The European Parliament (EP) is one of the two legislative bodies of the European Union and one of its seven institutions. Together with the Council of the European Union (known as the Council and informally as the Council of Ministers), it ...
, the party aligns itself with
The Left in the European Parliament - GUE/NGL parliamentary group. Categorised as "populist socialist" in literature,
in 2014 leading party strategist and ideologue
Eoin Ó Broin described Sinn Féin's entire political project as unashamedly populist. The party has been classed as
left-wing nationalist and
left-wing populist in academia, noting that while Sinn Féin engages in the "us vs them" dynamic of populism, it does so by engaging in the language of "the people vs elites" without resorting to using anti-immigrant rhetoric.
Social and cultural
Sinn Féin's main political goal is a
united Ireland
United Ireland (), also referred to as Irish reunification or a ''New Ireland'', is the proposition that all of Ireland should be a single sovereign state. At present, the island is divided politically: the sovereign state of Ireland (legally ...
. Other key policies from their most recent election manifesto are listed below:
Sinn Féin believes in immigration, both to fill up vacancies in employment, if the system can properly integrate new immigrants and has the resources to do so, and also to "protect people fleeing persecution and war", but not in "
open border
An open border is a border that enables Freedom of movement, free movement of people and often of goods between jurisdictions with no restrictions on movement and is lacking a border control. A border may be an open border due to intentional leg ...
s". The party also believes in faster application processing times for refugees, and in abolishing the
direct provision system.
Economy
At the
2020 election in the Republic of Ireland,
Sinn Féin committed to:
As of January 2022, Sinn Féin in Northern Ireland have committed to:
Health
At the 2020 election in the Republic of Ireland, Sinn Féin committed to:
Abortion
Until at least 2007, the party was not in favour of the extension of legalised abortion (British 1967 Act) to Northern Ireland; Assembly member
John O'Dowd said that they were "opposed to the attitudes and forces in society, which pressurise women to have abortions, and criminalise those who make this decision", adding that "in cases of rape, incest or sexual abuse, or where a woman's life and health is at risk or in grave danger, we accept that the final decision must rest with the woman." It voted for the
Protection of Life During Pregnancy Act 2013, which allowed for termination in cases where a pregnancy endangered a woman's life. It voted to support termination, in those limited circumstances, at the 2015 , but stopped short of supporting abortion on demand. In the
2018 Irish abortion referendum, the party campaigned for a "Yes" vote, while remaining opposed to abortion without restriction up to 12 weeks. At its in June 2018, the month after the "yes" vote in the abortion referendum, the party committed itself to supporting abortion, including without restriction up to 12 weeks. This allowed it not only to support abortion legislation in the Republic, but also to campaign for provision of abortion in Northern Ireland. Sinn Féin TD
Peadar Tóibín, who was suspended from the party for voting against abortion legislation, left to form a new party:
Aontú.
Sinn Féin have been accused of hypocrisy over their positions on abortion in Northern Ireland. In 2021, Sinn Féin abstained on a Stormont vote on restricting abortion access in the case of fetal abnormalities or disabilities, attracting criticism from both
anti-abortion
Anti-abortion movements, also self-styled as pro-life movements, are involved in the abortion debate advocating against the practice of abortion and its Abortion by country, legality. Many anti-abortion movements began as countermovements in r ...
and pro-choice groups, with the
Abortion Rights Campaign saying they "let down abortion seekers" and
Eamonn McCann accusing them of being "impaled on the fence on the issue", but with anti-abortion politicians such as
Peadar Tóibín accusing them of "speaking out of both sides of their mouth" on the issue. Later in the year,
Amnesty International
Amnesty International (also referred to as Amnesty or AI) is an international non-governmental organization focused on human rights, with its headquarters in the United Kingdom. The organization says that it has more than ten million members a ...
made a public statement calling on the party to "support full abortion rights across the island of Ireland".
Transgender health care
Historically the party has supported access to gender affirming healthcare for transgender individuals. However in 2024 after the UK's Conservative Party enacted a ban on puberty blockers following the
Cass Review, Sinn Féin allowed the ban to be extended to Northern Ireland, closing what some considered a "loophole" regarding access to such treatments in the UK.
International relations
Sinn Féin has longstanding fraternal ties with the
African National Congress
The African National Congress (ANC) is a political party in South Africa. It originated as a liberation movement known for its opposition to apartheid and has governed the country since 1994, when the 1994 South African general election, fir ...
and was described by
Nelson Mandela
Nelson Rolihlahla Mandela ( , ; born Rolihlahla Mandela; 18 July 1918 – 5 December 2013) was a South African Internal resistance to apartheid, anti-apartheid activist and politician who served as the first president of South Africa f ...
as an "old friend and ally in the anti-apartheid struggle". Sinn Féin supports the independence of
Catalonia
Catalonia is an autonomous community of Spain, designated as a ''nationalities and regions of Spain, nationality'' by its Statute of Autonomy of Catalonia of 2006, Statute of Autonomy. Most of its territory (except the Val d'Aran) is situate ...
from Spain,
Palestine
Palestine, officially the State of Palestine, is a country in West Asia. Recognized by International recognition of Palestine, 147 of the UN's 193 member states, it encompasses the Israeli-occupied West Bank, including East Jerusalem, and th ...
in the
Israeli–Palestinian conflict
The Israeli–Palestinian conflict is an ongoing military and political conflict about Territory, land and self-determination within the territory of the former Mandatory Palestine. Key aspects of the conflict include the Israeli occupation ...
, and the right to self-determination regarding independence of the
Basque Country from Spain and France. Sinn Féin opposes the
United States embargo against Cuba and has called for a normalization of relations between the two countries. In 2016, the Sinn Féin party president,
Gerry Adams
Gerard Adams (; born 6 October 1948) is a retired Irish Republican politician who was the president of Sinn Féin between 13 November 1983 and 10 February 2018, and served as a Teachta Dála (TD) for Louth from 2011 to 2020. From 1983 to 19 ...
was invited by the Cuban government to attend the state funeral of
Fidel Castro
Fidel Alejandro Castro Ruz (13 August 1926 – 25 November 2016) was a Cuban politician and revolutionary who was the leader of Cuba from 1959 to 2008, serving as the prime minister of Cuba from 1959 to 1976 and President of Cuba, president ...
whom Adams described as a "freedom fighter" and a "friend of Ireland's struggle". Sinn Féin is opposed to
NATO
The North Atlantic Treaty Organization (NATO ; , OTAN), also called the North Atlantic Alliance, is an intergovernmental organization, intergovernmental Transnationalism, transnational military alliance of 32 Member states of NATO, member s ...
membership.
European Union
Historically, Sinn Féin has been considered to be
Eurosceptic. The party campaigned for a "No" vote in the Irish
referendum
A referendum, plebiscite, or ballot measure is a Direct democracy, direct vote by the Constituency, electorate (rather than their Representative democracy, representatives) on a proposal, law, or political issue. A referendum may be either bin ...
on joining the
European Economic Community
The European Economic Community (EEC) was a regional organisation created by the Treaty of Rome of 1957,Today the largely rewritten treaty continues in force as the ''Treaty on the functioning of the European Union'', as renamed by the Lisbo ...
in 1972. Sinn Féin was on the same side of the debate as the DUP and most of the
Ulster Unionist Party (UUP) in that they wanted to pull out when UK had its referendum in 1975. The party was critical of the supposed need for an
EU constitution as proposed in 2002,
and urged a "No" vote in the 2008 referendum on the
Lisbon Treaty
The Treaty of Lisbon (initially known as the Reform Treaty) is a European agreement that amends the two Treaty, treaties which form the constitutional basis of the European Union (EU). The Treaty of Lisbon, which was signed by all Member stat ...
, although Mary Lou McDonald said that there was "no contradiction in being pro-Europe, but anti-treaty". In its manifesto for the
2015 UK general election, Sinn Féin pledged that the party would campaign for the UK to stay within the
European Union
The European Union (EU) is a supranational union, supranational political union, political and economic union of Member state of the European Union, member states that are Geography of the European Union, located primarily in Europe. The u ...
(EU), with Martin McGuinness saying that an exit "would be absolutely economically disastrous". Gerry Adams said that, if there were to be a referendum on the question, there ought to be a separate and binding referendum for Northern Ireland.
Its policy of a "Europe of Equals", and its critical engagement after 2001, together with its engagement with the
European Parliament
The European Parliament (EP) is one of the two legislative bodies of the European Union and one of its seven institutions. Together with the Council of the European Union (known as the Council and informally as the Council of Ministers), it ...
, marks a change from the party's previous opposition to the EU. The party expresses, on one hand, "support for Europe-wide measures that promote and enhance human rights, equality and the
all-Ireland agenda", and on the other a "principled opposition" to a
European superstate. This has led political commentators to define the party as
soft Eurosceptic since the 21st century.
Since moving to this "soft Euroscepticism" position, Sinn Féin support a policy of "critical engagement with the EU", and have a "principled opposition" to a
European superstate. It opposes an
EU constitution because it would reduce the
sovereignty
Sovereignty can generally be defined as supreme authority. Sovereignty entails hierarchy within a state as well as external autonomy for states. In any state, sovereignty is assigned to the person, body or institution that has the ultimate au ...
of the member-states. It also critiques the EU on grounds of
neoliberalism
Neoliberalism is a political and economic ideology that advocates for free-market capitalism, which became dominant in policy-making from the late 20th century onward. The term has multiple, competing definitions, and is most often used pe ...
. Sinn Féin
MEP Matt Carthy says that the "European Union must become a cooperative union of nation states committed to working together on issues such as climate change, migration, trade, and using our common strengths to improve the lives of citizens. If it does not, EU disintegration becomes a real possibility." The party supported continued UK membership of the
European Union
The European Union (EU) is a supranational union, supranational political union, political and economic union of Member state of the European Union, member states that are Geography of the European Union, located primarily in Europe. The u ...
in the UK's
2016 EU referendum and in April 2022, Mary Lou McDonald said in the Dáil that "We strongly support the Ukrainian people's stated desire to join the European Union".
Leadership history
Ministers and spokespeople
Northern Ireland
*
First Minister
A first minister is any of a variety of leaders of government cabinets. The term literally has the same meaning as "prime minister" but is typically chosen to distinguish the office-holder from a superior prime minister. Currently the title of ' ...
:
Michelle O'Neill
*
Junior Minister:
Aisling Reilly
*
Minister for the Economy:
Caoimhe Archibald
*
Minister of Finance:
John O'Dowd
*
Minister of Infrastructure:
Liz Kimmins
Republic of Ireland
Pádraig Mac Lochlainn serves as the party's
Chief Whip in the Dáil.
Election results
Northern Ireland
Devolved legislature elections
Westminster elections
Trends
Sinn Féin returned to Northern Ireland elections at the
1982 Assembly elections, winning five seats with 64,191 votes (10.1%). The party narrowly missed winning additional seats in
Belfast North and
Fermanagh and South Tyrone. In the 1983 UK general election eight months later, Sinn Féin increased its support, breaking the six-figure vote barrier in Northern Ireland for the first time by polling 102,701 votes (13.4%). Gerry Adams won the Belfast West constituency, and Danny Morrison fell only 78 votes short of victory in
Mid Ulster.
The
1984 European elections proved to be a disappointment, with Sinn Féin's candidate Danny Morrison polling 91,476 (13.3%) and falling well behind the SDLP candidate
John Hume.
By the beginning of 1985, Sinn Féin had won its first representation on local councils, owing to three by-election wins in Omagh (Seamus Kerr, May 1983) and Belfast (Alex Maskey in June 1983 and
Sean McKnight in March 1984). Three sitting councillors also defected to Sinn Féin in Dungannon, Fermanagh and Derry (the last defecting from the SDLP).
Sinn Féin succeeded in winning 59 seats in the
1985 local government elections, after it had predicted winning only 40 seats. However, the results continued to show a decline from the peak of 1983, as the party won 75,686 votes (11.8%).
The party failed to gain any seats in the
1986 by-elections caused by the resignation of unionist MPs in protest at the
Anglo-Irish Agreement. While this was partly due to an electoral pact between unionist candidates, the SF vote fell in the four constituencies they contested.
In the
1987 general election, Gerry Adams held his Belfast West seat, but the party failed to make breakthroughs elsewhere and overall polled 83,389 votes (11.4%). The same year saw the party contest the Dáil election in the Republic of Ireland; however, it failed to win any seats and polled less than 2%.
The
1989 local government elections saw a drop in support for Sinn Féin. Defending 58 seats (the 59 won in 1985, plus two 1987 by-election gains in West Belfast, minus three councillors who had defected to Republican Sinn Féin in 1986), the party lost 15 seats. In the aftermath of the election, Mitchell McLaughlin admitted that recent IRA activity had affected the Sinn Féin vote.
In the
1989 European election, Danny Morrison again failed to win a seat, polling at 48,914 votes (9%).
The nadir for SF in this period came in 1992, with Gerry Adams losing his Belfast West seat to the SDLP, and the SF vote falling in the other constituencies that they had contested relative to 1987.
In the
1997 UK general election, Adams regained Belfast West.
Martin McGuinness also won a seat in
Mid Ulster. In the
Irish general election the same year the party won its first seat since
1957
Events January
* January 1 – The Saarland joins West Germany.
* January 3 – Hamilton Watch Company introduces the first electric watch.
* January 5 – South African player Russell Endean becomes the first batsman to be Dismissal (cricke ...
, with
Caoimhghín Ó Caoláin
Caoimhghín Ó Caoláin (; born 18 September 1953) is an Irish former Sinn Féin politician who served as a Teachta Dála (TD) for the Cavan–Monaghan (Dáil constituency), Cavan–Monaghan constituency from 1997 to 2020. Ó Caoláin's victory ...
gaining a seat in the
Cavan–Monaghan constituency. In the
Irish local elections of 1999 the party increased its number of councillors from 7 to 23.
The party overtook its nationalist rival, the Social Democratic and Labour Party, as the largest nationalist party in the
local elections and
UK general election of 2001, winning four Westminster seats to the SDLP's three. The party continues to subscribe, however, to an
abstentionist policy towards the Westminster British parliament, on account of opposing that parliament's jurisdiction in Northern Ireland, as well as its oath to the King.

Sinn Féin increased its share of the nationalist vote in the
2003
2003 was designated by the United Nations as the International Year of Fresh water, Freshwater.
In 2003, a Multi-National Force – Iraq, United States-led coalition 2003 invasion of Iraq, invaded Iraq, starting the Iraq War.
Demographic ...
,
2007
2007 was designated as the International Heliophysical Year and the International Polar Year.
Events
January
* January 1
**Bulgaria and Romania 2007 enlargement of the European Union, join the European Union, while Slovenia joins the Eur ...
, and
2011 Assembly elections, with
Martin McGuinness, former Minister for Education, taking the post of
deputy First Minister in the Northern Ireland power-sharing Executive Committee. The party has three ministers in the Executive.
In the
2010 general election, the party retained its five seats,
and for the first time topped the poll at a Westminster election in Northern Ireland, winning 25.5% of the vote.
All Sinn Féin MPs increased their share of the vote and with the exception of
Fermanagh and South Tyrone, increased their majorities.
In Fermanagh and South Tyrone,
Unionist parties agreed a joint candidate, this resulted in the closest contest of the election, with Sinn Féin MP
Michelle Gildernew holding her seat by 4 votes after 3 recounts and an election petition challenging the result.
Sinn Féin lost some ground in the
2016 Assembly election, dropping one seat to finish with 28, ten behind the DUP. In the
snap election eight months later caused by the resignation of McGuinness as deputy First Minister, however, the party surged, winning 27.9% of the popular vote to 28.1% for the DUP, and 27 seats to the DUP's 28 in an Assembly reduced by 18 seats. The withdrawal of the DUP party whip from
Jim Wells in May 2018 meant that Sinn Féin became the joint-largest party in the Assembly alongside the DUP, with 27 seats each.
Republic of Ireland
Dáil Éireann elections
The party had five TDs elected in the
2002 Irish general election, an increase of four from the previous election. At the
general election in 2007 the party had expectations of substantial gains, with poll predictions that they would gain five to ten seats. However, the party lost one of its seats to
Fine Gael
Fine Gael ( ; ; ) is a centre-right, liberal-conservative, Christian democratic political party in Ireland. Fine Gael is currently the third-largest party in the Republic of Ireland in terms of members of Dáil Éireann. The party had a member ...
.
Seán Crowe, who had topped the poll in
Dublin South-West fell to fifth place, with his first preference vote reduced from 20.28% to 12.16%.
On 26 November 2010,
Pearse Doherty won a seat in the
Donegal South-West by-election. It was the party's first by-election victory in the
Republic of Ireland
Ireland ( ), also known as the Republic of Ireland (), is a country in Northwestern Europe, north-western Europe consisting of 26 of the 32 Counties of Ireland, counties of the island of Ireland, with a population of about 5.4 million. ...
since 1925. After negotiations with the left-wing Independent TDs
Finian McGrath and
Maureen O'Sullivan, a
Technical Group was formed in the Dáil to give its members more speaking time.
In the
2011 Irish general election
The 2011 Irish general election took place on Friday 25 February to elect 166 Teachta Dála, Teachtaí Dála across Dáil constituencies, 43 constituencies to Dáil Éireann, the lower house of Republic of Ireland, Ireland's parliament, the Oir ...
the party made significant gains. All its sitting TDs were returned, with Seán Crowe regaining the seat he had lost in 2007 in Dublin South-West. In addition to winning long-targeted seats such as
Dublin Central and
Dublin North-West, the party gained unexpected seats in
Cork East and
Sligo–North Leitrim.
It ultimately won 14 seats, the best performance at the time for the party's current incarnation. The party went on to win three seats in the Seanad election which followed their success at the general election. In the
2016 election it made further gains, finishing with 23 seats and overtaking the Labour Party as the third-largest party in the Dáil It ran seven candidates in the Seanad election, all of whom were successful.
The party achieved their greatest contemporary result in the
2020 Irish general election, topping the first-preference votes with 24.5% and winning 37 seats. Due to poor results in the 2019 local elections and elections to the European Parliament, the party ran only 42 candidates and did not compete in
Cork North-West. The party achieved unexpected success in the early counting, with 27 candidates being elected on the first count. Party leader Mary Lou McDonald called the result a "revolution" and announced she would pursue the formation of a government including Sinn Féin. Ultimately negotiations to form a new government led to Fianna Fáil, Fine Gael and the
Green Party agreeing to enter a majority
coalition government
A coalition government, or coalition cabinet, is a government by political parties that enter into a power-sharing arrangement of the executive. Coalition governments usually occur when no single party has achieved an absolute majority after an ...
in June. Sinn Féin pledged to be a strong opposition to the new coalition.
Presidential elections
Local government elections
Sinn Féin is represented on most county and city councils. It made large gains in the
local elections of 2004, increasing its number of councillors from 21 to 54, and replacing the
Progressive Democrats as the fourth-largest party in local government.
At the
local elections of June 2009, the party's vote fell by 0.95% to 7.34%, with no change in the number of seats. Losses in Dublin and urban areas were balanced by gains in areas such as Limerick, Wicklow, Cork, Tipperary and Kilkenny and the border counties .
However, three of Sinn Féin's seven representatives on
Dublin City Council
Dublin City Council () is the Local government in the Republic of Ireland, local authority of the city of Dublin in Republic of Ireland, Ireland. As a city council, it is governed by the Local Government Act 2001. Until 2001, the authority was k ...
resigned within six months of the June 2009 elections, one of them defecting to the
Labour Party.
European Parliament elections
In the
2004 European Parliament election
The 2004 European Parliament election was held between 10 and 13 June 2004 in the 25 member states of the European Union, using varying election days according to local custom. The European Parliamental parties could not be voted for, but elect ...
,
Bairbre de Brún won Sinn Féin's first seat in the European Parliament, at the expense of the SDLP. She came in second behind
Jim Allister of the DUP. In the
2009 election, de Brún was re-elected with 126,184 first preference votes, the only candidate to reach the quota on the first count. This was the first time since elections began in 1979 that the DUP failed to take the first seat, and was the first occasion Sinn Féin topped a poll in any Northern Ireland election.
Sinn Féin made a breakthrough in the
Dublin constituency in
2004
2004 was designated as an International Year of Rice by the United Nations, and the International Year to Commemorate the Struggle Against Slavery and Its Abolition (by UNESCO).
Events January
* January 3 – Flash Airlines Flight 60 ...
. The party's candidate,
Mary Lou McDonald, was elected on the sixth count as one of four MEPs for Dublin. In the
2009 election, when Dublin's representation was reduced to three MEPs, she failed to hold her seat.
In the South constituency their candidate, Councillor
Toiréasa Ferris, managed to nearly double the number of first preference votes,
lying third after the first count, but failed to get enough transfers to win a seat. In the
2014 election,
Martina Anderson topped the poll in
Northern Ireland
Northern Ireland ( ; ) is a Countries of the United Kingdom, part of the United Kingdom in the north-east of the island of Ireland. It has been #Descriptions, variously described as a country, province or region. Northern Ireland shares Repub ...
, as did
Lynn Boylan in
Dublin
Dublin is the capital and largest city of Republic of Ireland, Ireland. Situated on Dublin Bay at the mouth of the River Liffey, it is in the Provinces of Ireland, province of Leinster, and is bordered on the south by the Dublin Mountains, pa ...
.
Liadh Ní Riada was elected in the
South
South is one of the cardinal directions or compass points. The direction is the opposite of north and is perpendicular to both west and east.
Etymology
The word ''south'' comes from Old English ''sūþ'', from earlier Proto-Germanic ''*sunþa ...
constituency, and
Matt Carthy in
Midlands–North-West. In the
2019 election, Carthy was re-elected, but Boylan and Ní Riada lost their seats. Anderson also held her Northern Ireland seat until early 2020 when her term was cut short by
Brexit
Brexit (, a portmanteau of "Britain" and "Exit") was the Withdrawal from the European Union, withdrawal of the United Kingdom (UK) from the European Union (EU).
Brexit officially took place at 23:00 GMT on 31 January 2020 (00:00 1 February ...
.
Republic of Ireland
Northern Ireland
See also
*
Friends of Sinn Féin (an international organisation designed to support Sinn Féin's cause, with members in Great Britain, the United States, Canada, and Australia)
*
List of current Sinn Féin elected representatives
This is a list of currently elected Sinn Féin representatives.
Members of Dáil Éireann
Sinn Féin has 33 TDs in the Dáil Éireann (lower house) (most recent election in 2020 Irish general election, 2020):
*Mary Lou McDonald, Teachta Dála, ...
*
List of political parties in Northern Ireland
A list is a set of discrete items of information collected and set forth in some format for utility, entertainment, or other purposes. A list may be memorialized in any number of ways, including existing only in the mind of the list-maker, but ...
*
List of political parties in the Republic of Ireland
There are a number of political party, political parties in Republic of Ireland, Ireland, and coalition governments are common. The two historically largest parties, Fianna Fáil and Fine Gael, arose from a split in the original History of Sinn ...
*
List of Sinn Féin MPs (for members elected to the British Parliament)
Notes
Citations
General and cited sources
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Further reading
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*
O'Hegarty, Patrick Sarsfield (introduction by
Tom Garvin), ''The Victory of Sinn Féin: How It Won It & How It Used It'' (1999)
*
External links
*
*
Sinn Féin categoryin ''
The Guardian
''The Guardian'' is a British daily newspaper. It was founded in Manchester in 1821 as ''The Manchester Guardian'' and changed its name in 1959, followed by a move to London. Along with its sister paper, ''The Guardian Weekly'', ''The Guardi ...
''
Sinn Féin documentsat th
Irish Left Archive* Sinn Féin documents at the Irish Republican Digital Archive
1970-1986an
1986-2005
{{DEFAULTSORT:Sinn Fein
1905 establishments in Ireland
Centre-left parties in Europe
Centre-left parties in the United Kingdom
Democratic socialist parties in Europe
Irish nationalism
Left-wing politics in Ireland
Left-wing nationalist parties
Left-wing parties in the United Kingdom
Left-wing populism
Parnell Square
Political parties established in 1905