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Sinn Féin
President Mary Lou McDonald
Vice president Michelle O'Neill
Chairperson Declan Kearney
General Secretary Ken O'Connell
Seanad leader Vacant
Founder Arthur Griffith
Founded
  • 28 November 1905; 119 years ago (1905-11-28)
Merger of National Council
Cumann na nGaedheal
Dungannon Clubs
Headquarters 44 Parnell Square, Dublin, Ireland
Newspaper An Phoblacht
Youth wing Ógra Shinn Féin
LGBT wing Sinn Féin LGBTQ
Overseas wing Friends of Sinn Féin
Membership (2020) Increase~15,000
Ideology Irish republicanism
Democratic socialism
Left-wing nationalism
Political position Centre-left to left-wing
European Parliament group The Left in the European Parliament – GUE/NGL
Colours      Green
Slogan "Tosaíonn athrú anseo"
(Change starts here)
Dáil Éireann
36 / 160
Seanad Éireann
3 / 60
Northern Ireland Assembly
27 / 90
House of Commons
(NI seats)
Parliament dissolved
European Parliament
1 / 13
Local government in the Republic of Ireland
102 / 949
Local government in Northern Ireland
144 / 462


Sinn Féin (pronounced "Shin Fane") is an Irish republican and democratic socialist political party. It is active in both the Republic of Ireland and Northern Ireland. The name "Sinn Féin" comes from the Irish language and means "Ourselves" or "We Ourselves".

The original Sinn Féin group was started in 1905 by Arthur Griffith. Its members helped create the revolutionary Irish Republic and its parliament, the First Dáil. Many members were involved in the Irish War of Independence. The party later split several times. These splits led to the creation of other major Irish political parties like Fianna Fáil and Fine Gael. For many years, Sinn Féin was a small party.

A major split in 1970 led to the modern Sinn Féin party we know today. This happened at the start of a period called The Troubles. During the Troubles, Sinn Féin was linked to the Provisional Irish Republican Army. For a long time, there were rules that stopped Sinn Féin members from being heard on Irish and British TV and radio.

Sinn Féin used to have a policy called abstentionism. This meant they would run in elections for the British House of Commons and the Irish Dáil Éireann, but they would not take their seats if elected. In 1986, the party changed this policy for the Dáil.

In the 1990s, leaders like Gerry Adams and Martin McGuinness helped with the Northern Ireland peace process. This led to the Good Friday Agreement. This agreement created the Northern Ireland Assembly, where Sinn Féin became part of the government.

Today, Sinn Féin is the largest party in the Northern Ireland Assembly. They won the most votes in the 2022 Northern Ireland Assembly election. Since 2024, Michelle O'Neill has been the First Minister of Northern Ireland. This is the first time an Irish nationalist party has held this position.

In the UK House of Commons, Sinn Féin holds seven seats from Northern Ireland. They still follow their abstentionist policy there. In the Dáil Éireann (the Irish parliament), Sinn Féin is a very strong opposition party. They won the most first-preference votes in the 2020 Irish general election. The current leader of Sinn Féin is Mary Lou McDonald, who became president in 2018.

What Does the Name "Sinn Féin" Mean?

The name "Sinn Féin" comes from the Irish language. It means "Ourselves" or "We Ourselves". Sometimes people mistakenly translate it as "ourselves alone". This name shows the party's belief that the Irish people should govern themselves. They believe Ireland should not be part of a political union with Great Britain.

In January 1970, Sinn Féin split into two groups. One group was called "Official Sinn Féin". The other was called "Provisional Sinn Féin". The "Officials" later changed their name to the Workers' Party. Because of this, the term "Provisional Sinn Féin" is not used much anymore. The party is now just known as "Sinn Féin".

Sometimes, people call Sinn Féin members "Shinners". This term is often used in a negative way.

A Look at Sinn Féin's History

Early Days: 1905 to 1922

Arthur Griffith (1871-1922)
Arthur Griffith helped start Sinn Féin.

Sinn Féin was founded on November 28, 1905. At first, the party wanted Ireland to have its own government. They imagined a system where Ireland and Britain would share a king or queen.

In 1914, many Sinn Féin members joined the Irish Volunteers. This group was involved in the Easter Rising of 1916. Even though Arthur Griffith wasn't in the Rising, many Sinn Féin members were. Newspapers and the government started calling the Rising "the Sinn Féin Rising".

After the Rising, many Irish republicans joined Sinn Féin. In 1917, the party decided its main goal was to create an independent Irish Republic. In the 1918 Irish general election, Sinn Féin won 73 out of 105 seats in Ireland. In January 1919, these elected members met in Dublin. They declared themselves Dáil Éireann, the parliament of Ireland.

McGuinness- 1917 election
Joseph McGuinness's campaign car in 1917. He was one of the first Sinn Féin MPs elected.

Sinn Féin supported the Irish Republican Army during the Irish War of Independence. In 1921, members of the Dáil government signed the Anglo-Irish Treaty with the British government. This treaty created the Irish Free State. However, it also caused a big split within Sinn Féin. Some members supported the treaty, and others did not. This disagreement led to the Irish Civil War.

From 1923 to 1970

After the Civil War, the Sinn Féin members who supported the treaty formed a new party called Cumann na nGaedheal. This party governed the new Irish Free State for nine years. It later became Fine Gael.

The Sinn Féin members who were against the treaty continued to boycott the Dáil. In 1926, Éamon de Valera, a key leader, left Sinn Féin. He started his own party, Fianna Fáil. Most Sinn Féin members joined him. De Valera's new party became very powerful in Irish politics.

For many years, Sinn Féin was a very small party. In the late 1940s, the IRA leadership decided to work closely with Sinn Féin again. IRA members were told to join Sinn Féin, and by 1950, they had taken control of the party.

In 1955, two Sinn Féin candidates were elected to the British Parliament. In 1957, four Sinn Féin members were elected to the Irish Parliament. However, the party lost all its national representation again a few years later.

During the 1960s, some Sinn Féin leaders started to move towards more socialist ideas. This made some traditional republicans unhappy. They wanted to focus only on Irish independence and armed struggle.

The Split and the Troubles: 1970 to 1975

Sinn Féin split again in January 1970. This happened because of a disagreement about whether elected members should take their seats in parliament. The group that walked out became known as "Provisional Sinn Féin". They were led by Ruairí Ó Brádaigh. The other group became "Official Sinn Féin".

The "Provisionals" believed in using military action more than political action at first. Sinn Féin became a protest movement after many people were arrested without trial in August 1971. They organized marches and protests.

In May 1974, the British government lifted a ban on Sinn Féin. The party became more visible in communities. From 1976, there was a ban on Sinn Féin representatives speaking on TV and radio in the Republic of Ireland. This ban lasted until 1994.

From 1976 to 1983

Bobby Sands Belfast Irland@20160528 02
A mural of Bobby Sands in Belfast. He was elected to parliament while on hunger strike.

A big issue for prisoners was their "political status". This led to protests, including the 1981 Irish hunger strike. During this strike, Bobby Sands, a prisoner, was elected to the British Parliament. After he died, his election agent, Owen Carron, won his seat. These successes showed republicans that they should take part in elections.

At a party meeting in 1981, Danny Morrison famously said:

Who here really believes we can win the war through the ballot box? But will anyone here object if, with a ballot paper in this hand and an Armalite in the other, we take power in Ireland?

This idea became known as the "Armalite and ballot box strategy". In 1983, Gerry Adams became the new president of Sinn Féin.

Peace Process and Power-Sharing: 1983 to 1998

Gerry Adams and Martin McGuinness
Gerry Adams and Martin McGuinness (pictured in 2016) led Sinn Féin during the peace process.

Under Gerry Adams' leadership, elections became more important for Sinn Féin. In 1983, Alex Maskey was elected to Belfast City Council. By 1985, Sinn Féin had 59 seats on local councils in Northern Ireland.

The party started thinking about changing its policy of not taking seats in the Irish Parliament (Dáil). In 1986, the party voted to end this policy. Some members who disagreed left and formed Republican Sinn Féin.

In 1988, the British government also banned Sinn Féin representatives from being broadcast. Broadcasters found ways around this, like using actors to read their words. This ban lasted until 1994.

Sinn Féin became involved in peace talks in the 1990s. The Provisional IRA declared a ceasefire in August 1994. Sinn Féin then joined the talks. These talks led to the Good Friday Agreement on April 10, 1998. This agreement set up a shared government in Northern Ireland. It also changed how the Irish government viewed its claim to the whole island.

Recent Years: 1998 to Present

Report on Community Policing and Rural Crime (47485570311) (Ó Caoláin cropped)
Caoimhghín Ó Caoláin was the first Sinn Féin TD to take his seat in the Dáil since 1922.

In the 1997 Irish general election, Caoimhghín Ó Caoláin was elected to the Dáil. He was the first Sinn Féin member to take his seat there since 1922. This marked the start of Sinn Féin's continuous presence in the Irish Parliament.

In 2005, the British government stated that Sinn Féin and the IRA were closely linked. The Independent Monitoring Commission also reported that the IRA was responsible for a major bank robbery in Belfast in 2004. They said some senior Sinn Féin members were also senior IRA members. Sinn Féin denied these claims.

On January 28, 2007, Sinn Féin ended its boycott of policing in Northern Ireland. The party voted to support the Police Service of Northern Ireland (PSNI). Some members left the party because they disagreed with this decision.

In November 2017, Gerry Adams announced he would step down as president of Sinn Féin in 2018.

Mary Lou McDonald and Michelle O’Neill 2018
Mary Lou McDonald and Michelle O'Neill in February 2018.

On February 10, 2018, Mary Lou McDonald became the new president of Sinn Féin. Michelle O'Neill was elected vice president.

Sinn Féin was against Northern Ireland leaving the European Union. They suggested a vote on the reunification of Ireland to solve problems caused by Brexit.

In the 2020 Irish general election, Sinn Féin received the most first-preference votes. This was their best result since the 1922 election. However, other parties formed a government, and Sinn Féin became the main opposition party.

In the 2022 Northern Ireland Assembly election, Sinn Féin won the most votes and seats. This was the first time they became the largest party in the Northern Ireland Assembly. Michelle O'Neill said this marked "a new era". In 2023, Sinn Féin also became the largest party in local government in Northern Ireland.

Sinn Féin's Structure and How It Works

Sinn Féin follows a principle called "democratic centralism". This means that once the party makes a decision, all members must support it publicly. They cannot openly disagree with it.

The party's decisions are made by two main groups: the national officer board and the Árd Comhairle (national executive). The national officer board has seven members, including the President and Vice President. The Árd Comhairle has 47 members. Most members of the Árd Comhairle are from Northern Ireland, even though most of Sinn Féin's members and elected officials are from the Republic of Ireland.

When the Árd Comhairle makes a decision, all Sinn Féin members must follow it. In 2020, all Sinn Féin candidates for the Irish general election had to sign a pledge. This pledge said they would follow all directions from the Árd Comhairle.

Some people outside and inside Sinn Féin have said that the party's structure is not very democratic. They claim that a small group of leaders makes all the important decisions. However, Sinn Féin denies these claims. They say that decisions come from their annual national conference (Ard Fhéis) and the votes of regular members. Mary Lou McDonald has also said that suggestions of "shadowy figures" controlling the party are sometimes based on sexism.

What Sinn Féin Believes In

Sinn Féin is an Irish republican, democratic socialist, and left-wing party. Their main goal is to create a united Ireland.

Social and Cultural Policies

Sinn Féin supports:

  • Allowing Northern Ireland MPs to also sit in the Irish Parliament.
  • Ending academic selection in schools.
  • A law to give the Irish language the same status in Northern Ireland as the Welsh language has in Wales.
  • Making same-sex marriage legal in Northern Ireland (this happened in 2019).
  • Banning "conversion therapy".

Sinn Féin believes in immigration. They think immigrants can help fill jobs and that people fleeing war should be protected. They also want faster processing for refugees.

Economic Policies

Sinn Féin wants to:

  • Build 100,000 affordable homes over five years.
  • Ban rent increases for three years.
  • Remove a tax called Universal Social Charge (USC) for lower-income workers.
  • Create a state-owned childcare service.
  • Support small and medium businesses.
  • Work towards an "all-Ireland" economy with one currency and one tax system.
  • Get rid of Property Tax.

In Northern Ireland, Sinn Féin also wants to:

  • Build 100,000 affordable homes over 15 years.
  • Remove VAT (a type of tax) on fuel and energy.
  • Freeze domestic and business rates.
  • Help families with rising energy bills.
  • Make the minimum wage the same for all age groups.
  • Ban "zero-hour contracts" (where workers are not guaranteed hours).
  • Give workers a "right to disconnect" from work (not answer calls/emails outside work hours).

Health Policies

Sinn Féin wants to:

  • Create an "All-Ireland Health Service" similar to the UK's National Health Service.
  • Limit how much doctors can be paid.
  • Remove charges for prescriptions for certain patients.
  • Expand local health centers.
  • Offer free breast cancer screening for women over forty.

International Relations

Mary Lou McDonald with Dr Hermes Herrera Hernández signing the book of condolence to Fidel Castro at the Cuban Embassy in Dublin (30489680553)
Mary Lou McDonald signing a book of condolences for Fidel Castro in 2016.

Sinn Féin has long-standing friendships with groups like the African National Congress (ANC) in South Africa. Nelson Mandela called Sinn Féin an "old friend" in the fight against apartheid.

Sinn Féin supports:

  • The independence of Catalonia from Spain.
  • Palestine in the conflict with Israel.
  • The right of the Basque Country to decide its own future.
  • Ending the US trade ban against Cuba.
Sinn Féin pro-Palestine rally 2017
Sinn Féin members at a pro-Palestine rally in Dublin in 2017.

In 2016, Sinn Féin leader Gerry Adams attended the funeral of Fidel Castro in Cuba. Adams called Castro a "freedom fighter" and a "friend of Ireland's struggle". Sinn Féin is also against joining NATO.

Views on the European Union

Sinn Féin has changed its views on the European Union (EU) over time. In the past, they were against Ireland joining the EU. However, they now support a policy of "critical engagement" with the EU. This means they want to work with the EU but also disagree with some of its policies.

Protest at Boris Johnson visit (48421499401)
Sinn Féin members protesting against Brexit in 2019.

They are against the idea of a "European superstate" that would reduce countries' independence. They also criticize the EU for some of its economic policies.

Sinn Féin supported the UK staying in the EU during the 2016 Brexit vote. They believe that leaving the EU would be bad for the economy. In 2022, Mary Lou McDonald said Sinn Féin strongly supports Ukraine's desire to join the EU.

Party Leaders Over Time

Name Dates Notes
Edward Martyn 1905–1908
John Sweetman 1908–1911
Arthur Griffith 1911–1917
Éamon de Valera 1917–1926 Left Sinn Féin and started Fianna Fáil in 1926.
John J. O'Kelly (Sceilg) 1926–1931
Brian O'Higgins 1931–1933
Michael O'Flanagan 1933–1935
Cathal Ó Murchadha 1935–1937
Margaret Buckley 1937–1950 The first woman to be president of the party.
Paddy McLogan 1950–1952
Tomás Ó Dubhghaill 1952–1954
Paddy McLogan 1954–1962
Tomás Mac Giolla 1962–1970 After 1970, he led Official Sinn Féin, which later became The Workers' Party.
Ruairí Ó Brádaigh 1970–1983 Left Sinn Féin and started Republican Sinn Féin in 1986.
Gerry Adams 1983–2018 The longest-serving president in the party's history.
Mary Lou McDonald 2018–present Current leader of the party.

Sinn Féin in Government and Opposition

Northern Ireland Roles

Republic of Ireland Roles

Sinn Féin is the main opposition party in the Republic of Ireland. Here are some of their key spokespeople:

Role Name
Leader of the Opposition
President of Sinn Féin
Mary Lou McDonald
Deputy Leader in the Dáil
Spokesperson on Finance
Pearse Doherty
Spokesperson on Agriculture, Food and the Marine Matt Carthy
Spokesperson on Children, Equality, Disability, Integration and Youth Kathleen Funchion
Spokesperson on Environment, Climate and Communications and Transport Darren O'Rourke
Spokesperson on Community and Rural Development and the Islands
Spokesperson on Social Protection
Claire Kerrane
Spokesperson on Defence
Spokesperson on Foreign Affairs
John Brady
Spokesperson on Education Donnchadh Ó Laoghaire
Spokesperson on Enterprise, Trade and Employment Louise O'Reilly
Spokesperson on Health David Cullinane
Spokesperson on Irish, the Gaeltacht, Arts and Culture Aengus Ó Snodaigh
Spokesperson on Higher Education, Innovation and Science Rose Conway-Walsh
Spokesperson on Housing, Local Government and Heritage Eoin Ó Broin
Spokesperson on Justice Martin Kenny
Spokesperson on Tourism, Sport and Media Imelda Munster
Spokesperson on Public Expenditure and Reform Mairéad Farrell

Election Results

Sinn Féin takes part in elections in both Northern Ireland and the Republic of Ireland.

Northern Ireland Elections

Sinn Féin has grown to become the largest party in the Northern Ireland Assembly.

Election Body Seats won Position First preference votes  % Government Leader
1921 House of Commons
6 / 52
2nd 104,917 20.5% Abstention Éamon de Valera
1982 Assembly
5 / 78
5th 64,191 10.1% Abstention Ruairí Ó Brádaigh
1996 Forum
17 / 110
4th 116,377 15.5% Abstention Gerry Adams
1998 Assembly
18 / 108
4th 142,858 17.7% Power-sharing
2003
24 / 108
3rd 162,758 23.5% Direct Rule
2007
28 / 108
2nd 180,573 26.2% Power-sharing
2011
29 / 108
2nd 178,224 26.3% Power-sharing
2016
28 / 108
2nd 166,785 24.0% Power-sharing
2017
27 / 90
2nd 224,245 27.9% Power-sharing
2022
27 / 90
1st 250,388 29% Power-sharing Mary Lou McDonald

Westminster Elections (UK Parliament)

Sinn Féin MPs elected to the UK Parliament do not take their seats.

Election Seats (in NI) Position Total votes  % (of NI)  % (of UK) Government Leader
1924
0 / 13
None 34,181 0.2% No seats Éamon de Valera
1950
0 / 12
None 23,362 0.1% No seats Margaret Buckley
1955
2 / 12
4th 152,310 0.6% Abstention Paddy McLogan
1959
0 / 12
None 63,415 0.2% No seats
1983
1 / 17
8th 102,701 13.4% 0.3% Abstention Ruairí Ó Brádaigh
1987
1 / 17
6th 83,389 11.4% 0.3% Abstention Gerry Adams
1992
0 / 17
None 78,291 10.0% 0.2% No seats
1997
2 / 18
8th 126,921 16.1% 0.4% Abstention
2001
4 / 18
6th 175,933 21.7% 0.7% Abstention
2005
5 / 18
6th 174,530 24.3% 0.6% Abstention
2010
5 / 18
6th 171,942 25.5% 0.6% Abstention
2015
4 / 18
6th 176,232 24.5% 0.6% Abstention
2017
7 / 18
6th 238,915 29.4% 0.7% Abstention
2019
7 / 18
6th 181,853 22.8% 0.6% Abstention Mary Lou McDonald
2024 Abstention

Republic of Ireland Elections

Sinn Féin has seen its support grow significantly in the Republic of Ireland in recent years.

Dáil Éireann Elections

Election Leader 1st pref
votes
 % Seats Government
1918
(Westminster)
Éamon de Valera 476,087 46.9 (#1)
73 / 105
Declaration of
Irish Republic
1921
(HoC S. Ireland)
124 / 128
(elected unopposed)
1922 Michael Collins
(Pro-Treaty)
239,195 38.5 (#1)
58 / 128
Minority
Éamon de Valera
(Anti-Treaty)
135,310 21.8 (#2)
36 / 128
Abstention
1923 Éamon de Valera 288,794 27.4 (#2)
44 / 153
Abstention
Jun 1927 John J. O'Kelly 41,401 3.6 (#6)
5 / 153
Abstention
1954 Tomás Ó Dubhghaill 1,990 0.1 (#6)
0 / 147
Extra-parliamentary
1957 Paddy McLogan 65,640 5.3 (#4)
4 / 147
Abstention
1961 36,396 3.1 (#4)
0 / 144
Extra-parliamentary
Feb 1982 Ruairí Ó Brádaigh 16,894 1.0 (#5)
0 / 166
Extra-parliamentary
1987 Gerry Adams 32,933 1.9 (#6)
0 / 166
Extra-parliamentary
1989 20,003 1.2 (#6)
0 / 166
Extra-parliamentary
1992 27,809 1.6 (#7)
0 / 166
Extra-parliamentary
1997 45,614 2.5 (#7)
1 / 166
Opposition
2002 121,020 6.5 (#4)
5 / 166
Opposition
2007 143,410 6.9 (#4)
4 / 166
Opposition
2011 220,661 9.9 (#4)
14 / 166
Opposition
2016 295,319 13.8 (#3)
23 / 158
Opposition
2020 Mary Lou McDonald 535,595 24.5 (#1)
37 / 160
Opposition

Presidential Elections

Election Candidate 1st pref

Votes

 % Position
2011 Martin McGuinness 243,030 13.7% #3
2018 Liadh Ní Riada 93,987 6.4% #4

Local Government Elections

Sinn Féin has representatives on most county and city councils in Ireland.

Election Country First preference vote Vote % Seats
1920 Ireland 27.0%
1974 Republic of Ireland
7 / 802
1979 Republic of Ireland
11 / 798
1985 Northern Ireland 75,686 11.8%
59 / 565
1985 Republic of Ireland 46,391 3.3%
1989 Northern Ireland 69,032 11.2%
43 / 565
1991 Republic of Ireland 29,054 2.1%
8 / 883
1993 Northern Ireland 77,600 12.0%
51 / 582
1997 Northern Ireland 106,934 17.0%
74 / 575
1999 Republic of Ireland 49,192 3.5%
21 / 883
2001 Northern Ireland 163,269 21.0%
108 / 582
2004 Republic of Ireland 146,391 8.0%
54 / 883
2005 Northern Ireland 163,205 23.2%
126 / 582
2009 Republic of Ireland 138,405 7.4%
54 / 883
2011 Northern Ireland 163,712 24.8%
138 / 583
2014 Northern Ireland 151,137 24.1%
105 / 462
2014 Republic of Ireland 258,650 15.2%
159 / 949
2019 Northern Ireland 157,448 23.2%
105 / 462
2019 Republic of Ireland 164,637 9.5%
81 / 949
2023 Northern Ireland 230,793 30.9%
144 / 462
2024 Republic of Ireland

European Elections

Sinn Féin has elected members to the European Parliament from both Northern Ireland and the Republic of Ireland.

Election Country First preference vote Vote % Seats
1984 Northern Ireland 91,476 13.3%
0 / 3
Republic of Ireland 54,672 4.9%
0 / 15
1989 Northern Ireland 48,914 9.0%
0 / 3
Republic of Ireland 35,923 2.2%
0 / 15
1994 Northern Ireland 55,215 9.9%
0 / 3
Republic of Ireland 33,823 3.0%
0 / 15
1999 Northern Ireland 117,643 17.3%
0 / 3
Republic of Ireland 88,165 6.3%
0 / 15
2004 Northern Ireland 144,541 26.3%
1 / 3
Republic of Ireland 197,715 11.1%
1 / 13
2009 Northern Ireland 126,184 25.8%
1 / 3
Republic of Ireland 205,613 11.2%
0 / 12
2014 Northern Ireland 159,813 25.5%
1 / 3
Republic of Ireland 323,300 19.5%
3 / 11
2019 Northern Ireland 126,951 22.17%
1 / 3
Republic of Ireland 196,001 11.7%
1 / 11
2024 Republic of Ireland
0 / 14

Images for kids

See also

Kids robot.svg In Spanish: Sinn Féin para niños

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