| Election Name: | September 1927 Irish general election |
| Country: | Ireland |
| Type: | parliamentary |
| Ongoing: | no |
| Previous Election: | June 1927 Irish general election |
| Previous Mps: | 5th Dáil |
| Next Election: | 1932 Irish general election |
| Next Year: | 1932 |
| Seats For Election: | 153 seats in Dáil Éireann |
| Majority Seats: | 77 |
| Election Date: | 15 September 1927 |
| Elected Mps: | 6th Dáil |
| Turnout: | 69.0% 0.9pp |
| Leader1: | W. T. Cosgrave |
| Leader Since1: | April 1923 |
| Party1: | Cumann na nGaedheal |
| Leaders Seat1: | Cork Borough |
| Last Election1: | 47 seats, 27.4% |
| Seats1: | 62 |
| Seat Change1: | 15 |
| Popular Vote1: | 453,028 |
| Percentage1: | 38.6% |
| Swing1: | 11.2% |
| Leader2: | Éamon de Valera |
| Leader Since2: | 26 March 1926 |
| Party2: | Fianna Fáil |
| Leaders Seat2: | Clare |
| Last Election2: | 44 seats, 26.2% |
| Seats2: | 57 |
| Seat Change2: | 13 |
| Popular Vote2: | 411,777 |
| Percentage2: | 35.2% |
| Swing2: | 9.0% |
| Leader3: | Thomas Johnson |
| Leader Since3: | 1914 |
| Party3: | Labour Party (Ireland) |
| Leaders Seat3: | Dublin County (defeated) |
| Last Election3: | 22 seats, 12.6% |
| Seats3: | 13 |
| Seat Change3: | 9 |
| Popular Vote3: | 106,184 |
| Percentage3: | 9.1% |
| Swing3: | 3.5% |
| Leader4: | Michael Heffernan |
| Leader Since4: | 1927 |
| Party4: | Farmers' Party (Ireland) |
| Leaders Seat4: | Tipperary |
| Last Election4: | 11 seats, 8.9% |
| Seats4: | 6 |
| Seat Change4: | 5 |
| Popular Vote4: | 74,626 |
| Percentage4: | 6.4% |
| Swing4: | 2.5% |
| Leader5: | William Redmond |
| Leader Since5: | 1926 |
| Party5: | National League Party |
| Leaders Seat5: | Waterford |
| Last Election5: | 8 seats, 7.3% |
| Seats5: | 2 |
| Seat Change5: | 6 |
| Popular Vote5: | 18,990 |
| Percentage5: | 1.6% |
| Swing5: | 5.7% |
| Leader6: | James Larkin |
| Leader Since6: | 1923 |
| Party6: | Irish Worker League |
| Leaders Seat6: | Dublin North |
| Last Election6: | New |
| Seats6: | 1 |
| Seat Change6: | 1 |
| Popular Vote6: | 12,473 |
| Percentage6: | 1.1% |
| Swing6: | 1.1% |
| President of the Executive Council | |
| Posttitle: | President of the Executive Council after election |
| Before Election: | W. T. Cosgrave |
| Before Party: | Cumann na nGaedheal |
| After Election: | W. T. Cosgrave |
| After Party: | Cumann na nGaedheal |
The September 1927 Irish general election to the 6th Dáil was held on Thursday, 15 September, following the dissolution of the 5th Dáil on 25 August by Governor-General Tim Healy on the request of President of the Executive Council W. T. Cosgrave.
The 6th Dáil met on 11 October 1927 to nominate the president and Executive Council of the Irish Free State for appointment by the Governor-General. Cosgrave was re-appointed leading a new minority government of Cumann na nGaedheal with the support of the Farmers' Party.[1]
The second general election of 1927 followed tight political arithmetic within Dáil Éireann. Only three seats separated the two largest parties in the 5th Dáil, Cumann na nGaedheal and Fianna Fáil, and the government was very unstable. Fianna Fáil entered the Dáil in August, and days later gave its support to motion of no confidence in the Cumann na nGaedheal government proposed by Labour Party leader Thomas Johnson. Johnson had hoped to form a government with the National League and the support of Fianna Fáil. The Cumann na nGaedheal government had the backing of the Farmers' Party and most of the Independent TDs. When the vote was taken, John Jinks, a National League TD, failed to attend. The Deputy Leader of the Labour Party, Thomas J. O'Connell, was in Canada and also was unable to participate in the crucial vote. As a result, the vote was a tie and the Ceann Comhairle voted with the government. The motion failed.
On 25 August, Cumann na nGaedheal won two by-elections. W. T. Cosgrave called a general election in the hope of securing an increased majority. Cumann na nGaedheal recruited four TDs who had supported Cosgrave in the vote of confidence to stand as candidates for the party: Bryan Cooper (Dublin County), John Daly (Cork East), Myles Keogh (Dublin South) and Vincent Rice (Dublin South).[2] Fianna Fáil campaigned on a promise of self-sufficiency. The Labour Party had done well on its last outing and was hoping, and was predicted, to win extra seats, in spite of internal divisions. The Farmers' Party represented the needs of agricultural labourers. Sinn Féin, weakened after de Valera had split to form Fianna Fáil, had been reduced to five seats in the June 1927 election, and did not contest the September 1927 election, due to lack of financial assets.[3]
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Cumann na nGaedheal formed the 4th Executive Council of the Irish Free State, a minority government, with the support of the Farmers' Party and Independent TDs, with W. T. Cosgrave serving again as President of the Executive Council. The leader of the Farmers' Party served as a Parliamentary Secretary. In 1930, the Executive Council would resign following the loss of a vote on legislation. The 5th Executive Council of the Irish Free State was formed soon after with the same composition.