Dún Laoghaire is a parliamentary constituency in Ireland which is represented in Dáil Éireann, the lower house of the Irish parliament or Oireachtas. The constituency has an electorate of 91,522 and is served by 5 deputies (Teachtaí Dála, commonly referred to in English as TDs). The method of election is the Single Transferable Vote. The constituency is located in the eastern area of Dun Laoghaire-Rathdown county, Ireland, consisting of the area around the town of Dún Laoghaire.
Some of the more high profile TD's in the constituency is the current Minister for Social and Family Affairs, Mary Hanafin, along with the leader of the Labour Party TD Eamon Gilmore. Others re-elected in the 2007 general election, were Barry Andrews of Fianna Fáil, Ciaran Cuffe of the Green Party and Fine Gael's Seán Barrett 
The constituency was created in 1977, replacing the earlier Dún Laoghaire and Rathdown constituency which had been established in 1948.
|Candidate||Party||Count 1||Count 2||Count 3||Count 4||Count 5||Count 6||Count 7|
|Liam Cosgrave||Fine Gael||11024|
|David Andrews||Fianna Fáil||8754||8754|
|Martin O'Donoghue||Fianna Fáil||4099||4140||4555||4593||6897||6946||7936|
|John O'Connor||Fianna Fáil||1984||2017||2606||2649|
|Michael Carroll||Fine Gael||1791||2964||2993||3048||3096||5316||6117|
|Percy Dockrell||Fine Gael||1472||2886||2896||2950||2986|