Sinn Féin (/ʃɪn ˈfeɪn/ shin-FAYN;Irish pronunciation: [ʃɪnʲ ˈfʲeːnʲ]; English: Ourselves or We Ourselves) is a left-wing Irish republican political party active in both the Republic of Ireland and Northern Ireland.
The Sinn Féin organisation was founded in 1905 by Arthur Griffith. It took its current form in 1970 after a split within the party (with the other side becoming the Workers' Party of Ireland), and has historically been associated with the Provisional Irish Republican Army (IRA).Gerry Adams has been party president since 1983.
Sinn Féin is a major party in both Northern Ireland and the Republic of Ireland. It is the largest nationalist party in the Northern Ireland Assembly, and the second-largest overall; it had four ministerial posts in the most recent power-sharing Northern Ireland Executive. It holds seven of Northern Ireland's 18 seats—the second-largest bloc after the Democratic Unionist Party (DUP)—at Westminster, where it follows a policy of abstentionism, refusing to attend parliament or vote on bills. It is the third-largest party in the Oireachtas, the parliament of the Republic of Ireland. As Ireland's dominant parties of Fine Gael and Fianna Fáil are both centre-right, Sinn Féin is the largest left-wing party in Ireland.