| Election Name: | 2019 Dublin Fingal by-election |
| Country: | Ireland |
| Type: | by-election |
| Ongoing: | no |
| Previous Year: | 2016 general election |
| Election Date: | 29 November 2019 |
| Next Year: | 2020 general election |
| Turnout: | 25,344 (25.6%) |
| 2Blank: | Percentage |
| 3Blank: | Final count |
| Nominee1: | Joe O'Brien |
| Party1: | Green Party (Ireland) |
| 1Data1: | 5,744 |
| 2Data1: | 22.9% |
| 3Data1: | 12,315 |
| Nominee2: | Lorraine Clifford-Lee |
| Party2: | Fianna Fáil |
| 1Data2: | 4,631 |
| 2Data2: | 18.5% |
| 3Data2: | 7,754 |
| Nominee3: | Duncan Smith |
| Party3: | Labour Party (Ireland) |
| 1Data3: | 3,821 |
| 2Data3: | 15.2% |
| 3Data3: | - |
| Nominee4: | James Reilly |
| Party4: | Fine Gael |
| 1Data4: | 3,707 |
| 2Data4: | 14.8% |
| 3Data4: | - |
| Image5: | Mulligan |
| Nominee5: | Dean Mulligan |
| Party5: | Independents 4 Change |
| 1Data5: | 2,550 |
| 2Data5: | 10.2% |
| 3Data5: | - |
| Nominee6: | Ann Graves |
| Party6: | Sinn Féin |
| 1Data6: | 1,327 |
| 2Data6: | 5.3% |
| 3Data6: | - |
| Image7: | Carey |
| Nominee7: | Tracey Carey |
| Party7: | Social Democrats (Ireland) |
| 1Data7: | 1,106 |
| 2Data7: | 4.4% |
| 3Data7: | - |
| Nominee8: | Gemma O'Doherty |
| Party8: | Independent politician |
| 1Data8: | 1,026 |
| 2Data8: | 4.1% |
| 3Data8: | - |
| Image9: | Brady |
| Nominee9: | Glenn Brady |
| Party9: | Independent politician |
| 1Data9: | 670 |
| 2Data9: | 2.7% |
| 3Data9: | - |
| Map Size: | 200px |
| TD | |
| Before Election: | Clare Daly |
| Before Party: | Independents 4 Change |
| Posttitle: | TD |
| After Election: | Joe O'Brien |
| After Party: | Green Party (Ireland) |
A by-election was held in the Dáil Éireann Dublin Fingal constituency in Ireland on Friday, 29 November 2019, to fill the vacancy left by the election of Independents 4 Change TD Clare Daly to the European Parliament.
It was held on the same day as three other by-elections in Cork North-Central, Dublin Mid-West and Wexford.[1] The Electoral (Amendment) Act 2011 stipulates that a by-election in Ireland must be held within six months of a vacancy occurring.[2] The by-election writ was moved in the Dáil on 7 November 2019.[3] [4]
At the 2016 general election, the electorate of Dublin Fingal was 93,486, and the constituency elected one Fianna Fáil TD, one Independents 4 Change TD, one Fine Gael TD, one Labour Party TD, and one Sinn Féin TD.[5]
The election was won by Fingal County Councillor Joe O'Brien of the Green Party. It was the first by-election won by a Green Party candidate. Karen Power was co-opted to O'Brien's seat on Fingal County Council following his election to the Dáil
Among the candidates were 2 Senators Lorraine Clifford-Lee and James Reilly and four Fingal County Councillors Ann Graves, Dean Mulligan, Joe O'Brien and Duncan Smith.
This was the first occasion when by-elections were contested by Independents 4 Change (who also contested Dublin Mid-West) and the Social Democrats (who also contested Cork North-Central and Dublin Mid-West).
During the campaign, the Fianna Fáil candidate Lorraine Clifford-Lee was embroiled in controversy when she had to apologise for the language she had used in tweets she had made in 2011, which were derogatory towards the Traveller community.[6]