| Dún Laoghaire | |
| Type: | Dáil |
| Year: | 1977 |
| Map Entity: | County Dublin |
| Map Size: | 150px |
| Members Label: | TDs |
| Local Council Label: | Local government areas |
| Blank1 Name: | EP constituency |
| Blank1 Info: | Dublin |
| Population: | 123,546 (2016)[1] |
Dún Laoghaire 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).
The constituency was created in 1977, succeeding the earlier Dún Laoghaire and Rathdown constituency which had been created in 1948. The constituency is in the eastern coastal area of Dún Laoghaire–Rathdown county (part of County Dublin till 1994), including the town of Dún Laoghaire and the villages of Ballybrack, Blackrock, Booterstown, Cabinteely (east of the N11 road), Dalkey, Deansgrange, Glasthule, Killiney, Loughlinstown, Monkstown, Sallynoggin, Shankill, and Stillorgan. At the 2016 general election the constituency was redrawn to include the electoral divisions of Cabinteely-Loughlinstown, Foxrock-Carrickmines, Foxrock-Torquay and Stillorgan-Leopardstown from the now-dissolved Dublin South constituency.[2]
The Constituency Review Report 2023 of the Electoral Commission recommended that at the next general election, Dún Laoghaire be altered with the transfer of territory to Dublin Rathdown.[3] [4]
For the next general election, the Electoral (Amendment) Act 2023 defines the constituency as:[5]
| + Changes to the Dún Laoghaire constituency | ||||
| Years | TDs | Boundaries | Notes | |
|---|---|---|---|---|
| 1977–1981 | 4 | Created from the former constituency of Dún Laoghaire and Rathdown. | ||
| 1981–1992 | 5 | In County Dublin, the borough of Dún Laoghaire | Transfer of Ballybrack Number One, Ballybrack Number Two, Rathmichael and the remainder of Stillorgan Number One from South County Dublin. | |
| 1992–2007 | 5 | In County Dublin, the borough of Dún Laoghaire | Transfer of the Kilternan-Stepaside area from Dublin South.[6] New definitions of DEDs.[7] | |
| 1997–2002 | 5 | Transfer of Glencullen to Dublin South. Transfer of the Trimleston area of Booterstown to Dublin South-East.[8] | ||
| 2002–2011 | 5 | Transfer of Trimleston area of Booterstown from Dublin South-East, transfer of areas in Stillorgan, Leopardstown and Glenamuck to Dublin South.[9] [10] | ||
| 2011–2016 | 4 | Transfer to Dubin South of Foxrock-Carrickmines, Foxrock-Torquay and the remaining parts of Cabinteely-Loughlinstown and Stillorgan-Leopardstown (part north-east of former Harcourt Street-Bray railway line).[11] | ||
| 2016–2020 | 4 | Transfer of Cabinteely-Loughlinstown, Foxrock-Carrickmines, Foxrock-Torquay and Stillorgan-Leopardstown from the former Dublin South.[12] | ||
| 2020– | 4 |
Seán Barrett was Ceann Comhairle at the dissolution of the 31st Dáil and therefore deemed to be returned automatically. The constituency was treated as a three-seater for the purposes of calculating the quota.