1st	9 March 2011 – 21 July 2011
2nd	14 September 2011 – 19 July 2012
3rd	18 September 2012 – 18 July 2013
4th	18 September 2013 – 17 July 2014
5th	17 September 2014 – 16 July 2015
6th	22 September 2015 – 3 February 2016

1st	9 March 2011 – 21 July 2011
2nd	14 September 2011 – 19 July 2012
3rd	18 September 2012 – 18 July 2013
4th	18 September 2013 – 17 July 2014
5th	17 September 2014 – 16 July 2015
6th	22 September 2015 – 3 February 2016

The 31st Dáil Éireann constituted the lower house of the Oireachtas (legislature) of Ireland following the 2011 general election of TDs (Members of Parliament) on 25 February 2011. On the advice of President Mary McAleese, the newly elected Dáil Éireann convened at midday on 9 March 2011 in Leinster House. It was dissolved by President Michael D. Higgins on the request of Taoiseach Enda Kenny on 3 February 2016.

The 2011 election saw 17 Dáil constituencies return 3 TDs each, 15 constituencies return 4 TDs each and 11 constituencies return 5 TDs each, for a total of 166. Fine Gael, led by Enda Kenny, became the largest party for the first time, though without an overall majority. A coalition government was then formed with the Labour Party, led by Eamon Gilmore, who had achieved their highest number of seats in the party's history. In July 2014, Joan Burton won a Labour Party leadership election to become the Leader of the Labour Party and Tánaiste. Seán Barrett was elected as Ceann Comhairle in the first sitting of the Dáil.

Fianna Fáil secured 20 seats, the lowest in the party's history, thereby becoming the largest party in opposition. The leader of the party, Micheál Martin became the Leader of the Opposition. Gerry Adams as leader of Sinn Féin became the second opposition leader. A technical group was formed following the election composed of 16 independent politicians and members of the United Left Alliance, who failed to win enough seats to gain speaking rights.

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