This is a summary of the results of general elections to Dáil Éireann, the house of representatives of the Oireachtas, the Irish Parliament, from 1918 to the present.
With the exception of 1918, they were held using the electoral system of proportional representation by means of the single transferable vote.
The 1921 election refers to the separate elections to the House of Commons of Southern Ireland and the House of Commons of Northern Ireland, treated by Sinn Féin as elections to the Second Dáil.
On 7 January 1922, in the Anglo-Irish Treaty Dáil vote, TDs constituting the 2nd Dáil divided 64–57 (4 not voting) in favour of the Treaty.
The Treaty being passed, elections were called for a constituent assembly of the Irish Free State, which constituted the 3rd Dáil.