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. The Electoral (Amendment) Act 2011 stipulates that a by-election in Ireland must be held within six months of a vacancy occurring. The by-election writ was moved in the Dáil on 7 November 2019.
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.
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
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.
|Fianna Fáil||Lorraine Clifford-Lee||18.5||4,631||4,672||4,766||4,929||5,252||5,648||6,547||7,754|
|Fine Gael||James Reilly||14.8||3,707||3,753||3,803||3,882||3,992||4,200|
|Inds. 4 Change||Dean Mulligan||10.2||2,550||2,606||2,745||2,909||3,754|
|Sinn Féin||Ann Graves||5.3||1,327||1,361||1,402||1,481|
|Social Democrats||Tracey Carey||4.4||1,106||1,125||1,214||1,273|
|Electorate: 99,039 Valid: 25,090 Spoilt: 254 (1.0%) Quota: 12,546 Turnout: 25,344 (25.6%)|
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- "Dublin Fingal". Irish Times. Dublin. 30 November 2019. Archived from the original on 5 June 2021. Retrieved 5 June 2021.