Frances Fitzgerald Fine Gael Mark Ward Sinn Féin A by-election was held in the Dáil Éireann Dublin Mid-West constituency in Ireland on Friday, 29 November 2019, to fill the vacancy left by the election of Fine Gael TD Frances Fitzgerald to the European Parliament.

[1] The Electoral (Amendment) Act 2011 stipulates that a by-election in Ireland must be held within six months of a vacancy occurring.

[5] The election was won by South Dublin County Councillor Mark Ward of Sinn Féin.

Lisa Colman was co-opted to Ward's seat on South Dublin County Council following his election to the Dáil.

Among the candidates were seven South Dublin County Councillors; Paul Gogarty, Emer Higgins, Peter Kavanagh, Shane Moynihan, Francis Timmons, Joanna Tuffy and Mark Ward and former South Dublin County Councillor Ruth Nolan.