Several constitutional conventions have considered or proposed constitutions for the island of Ireland or for one of its two jurisdictions, Northern Ireland and the Republic of Ireland.
| Body | Members | Authority | When met | Territory | Result |
|---|---|---|---|---|---|
| Irish Convention | Appointed, nominated | British government | 1917–18 | Whole island | Failed to agree on a replacement for the Government of Ireland Act 1914. [1] |
| First Dáil | Elected | Self-appointed | 1919–21 | Whole island | Produced a brief Dáil Constitution and aspirational Democratic Programme for its self-proclaimed Irish Republic |
| Third Dáil sitting as a constituent assembly | Elected | Anglo-Irish Treaty | 1922 [n 1] | Irish Free State [n 2] | Enacted the Constitution of the Irish Free State, which had been drafted by a committee appointed by the Provisional Government, and which was then re-enacted at Westminster via the Irish Free State Constitution Act 1922 |
| 8th Dáil | Elected | Irish Free State [n 3] | 1937 [n 4] | State of Ireland [n 5] | Passed the Constitution of Ireland, which had been drafted by a committee appointed by the Taoiseach, and which was then adopted by plebiscite [3] |
| Northern Ireland Constitutional Convention | Elected | British government | 1975–76 | Northern Ireland | An elected consultative body envisaged as a prelude to devolution, which was dissolved after nationalist and unionist members failed to reach any agreement. [4] |
| New Ireland Forum | Appointed (Chair), nominated | Irish government | 1983–84 | Whole island | Established by the Dublin government to consider possible constitutional arrangements in view of the Troubles in Northern Ireland. [5] |
| Northern Ireland Forum | Elected | British government [6] | 1996–98 | Northern Ireland | Played a subsidiary role in the Northern Ireland peace process, as Sinn Féin boycotted the Forum but not the talks that led to the Good Friday Agreement |
| Constitutional Convention | Appointed (Chair), nominated (33), randomly selected (66) | Irish government | 2012–14 | State of Ireland | To consider specified proposed amendments to the existing Constitution. [7] |