There were two governments of the 2nd Dáil, which were ministries of Dáil Éireann, the assembly of Dáil Éireann that was the legislature of the Irish Republic, a unilaterally declared state which lasted from 1919 to 1922. The Second Dáil was elected at the 1921 Irish elections on 24 May 1921. The 3rd ministry was led by Éamon de Valera as president and lasted 136 days. De Valera resigned as president after the Dáil voted to accept the Anglo-Irish Treaty. The 4th ministry was led by Arthur Griffith as president. Griffith died in office on 12 August 1922, but a new Dáil ministry was not formed until 9 September 1922. Griffith served 214 days as president, with a further 28 days between his death and the appointment of W. T. Cosgrave as his successor by the Dáil.

William Thomas Cosgrave was an Irish Fine Gael politician who served as the president of the Executive Council of the Irish Free State from 1922 to 1932, leader of the Opposition in both the Free State and Ireland from 1932 to 1944, leader of Fine Gael from 1934 to 1944, founder and leader of Fine Gael's predecessor, Cumann na nGaedheal, from 1923 to 1933, chairman of the Provisional Government from August 1922 to December 1922, the president of Dáil Éireann from September 1922 to December 1922, the minister for Finance from 1922 to 1923 and minister for Local Government from 1919 to 1922. He served as a Teachta Dála (TD) from 1921 to 1944. He was a Member of Parliament (MP) for the Kilkenny North constituency from 1918 to 1922.