Dublin West (Dáil constituency)

Dublin West is a parliamentary constituency represented in Dáil Éireann, the lower house of the Irish parliament or Oireachtas. The constituency elects 4 deputies (Teachtaí Dála, commonly known as TDs) on the system of proportional representation by means of the single transferable vote (PR-STV).

Boundaries
The constituency includes Mulhuddart, Corduff, Blanchardstown, Castleknock, Carpenterstown, Barberstown, Clonsilla and Ongar. The portion in Dublin City includes Dublin Zoo and Áras an Uachtaráin, the official residence of the President of Ireland. The Electoral (Amendment) (Dáil Constituencies) Act 2017 defines the constituency as:

The Constituency Review Report 2023 of the Electoral Commission recommended that at the next general election Dublin West be increased to a five-seat constituency with the transfer of territory from Dublin North-West.

For the next general election, the Electoral (Amendment) Act 2023 defines the constituency as:

2014 by-election
Following the resignation of Independent TD Patrick Nulty, a by-election was held on 23 May 2014, on the same day as the 2014 European and local elections.

2011 by-election
Following the death of Fianna Fáil TD Brian Lenihan Jnr, a by-election was held on 27 October 2011, on the same day as the Irish presidential election and two constitutional referendums.

1996 by-election
Following the death of Fianna Fáil TD Brian Lenihan Snr, a by-election was held on 2 April 1996. The seat was won by the Fianna Fáil candidate Brian Lenihan Jnr, son of the deceased TD.

1982 by-election
Following the resignation of Fine Gael TD Richard Burke on his appointment as European Commissioner, a by-election was held on 25 May 1982. The seat was won by the Fine Gael candidate Liam Skelly.