# Dún Laoghaire and Rathdown (Dáil constituency)

Dún Laoghaire and Rathdown was a parliamentary constituency represented in Dáil Éireann, the lower house of the Irish parliament or Oireachtas from 1948 to 1977. The constituency elected 3 (and later 4) deputies (Teachtaí Dála, commonly known as TDs) to the Dáil, on the system of proportional representation by means of the single transferable vote (PR-STV).

## History and boundaries

The constituency was located on the south coast of County Dublin.

## TDs

Teachtaí Dála (TDs) for Dún Laoghaire and Rathdown 1948–1969 :
| Key to parties  CnaP = Clann na Poblachta  FF = Fianna Fáil  FG = Fine Gael  Lab = Labour ||||||||||
| Dáil | Election | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) |
| 13th | 1948 | | Seán Brady (FF) | | Joseph Brennan (CnaP) | | Liam Cosgrave (FG) | 3 seats until 1961 | 3 seats until 1961 |
| 14th | 1951 | | Seán Brady (FF) | | Percy Dockrell (FG) | | Liam Cosgrave (FG) | 3 seats until 1961 | 3 seats until 1961 |
| 15th | 1954 | | Seán Brady (FF) | | Percy Dockrell (FG) | | Liam Cosgrave (FG) | 3 seats until 1961 | 3 seats until 1961 |
| 16th | 1957 | | Seán Brady (FF) | | Lionel Booth (FF) | | Liam Cosgrave (FG) | 3 seats until 1961 | 3 seats until 1961 |
| 17th | 1961 | | Seán Brady (FF) | | Lionel Booth (FF) | | Liam Cosgrave (FG) | | Percy Dockrell (FG) |
| 18th | 1965 | | David Andrews (FF) | | Lionel Booth (FF) | | Liam Cosgrave (FG) | | Percy Dockrell (FG) |
| 19th | 1969 | | David Andrews (FF) | | Barry Desmond (Lab) | | Liam Cosgrave (FG) | | Percy Dockrell (FG) |
| 20th | 1973 | | David Andrews (FF) | | Barry Desmond (Lab) | | Liam Cosgrave (FG) | | Percy Dockrell (FG) |
| 21st | 1977 | Constituency abolished. See Dún Laoghaire | Constituency abolished. See Dún Laoghaire | Constituency abolished. See Dún Laoghaire | Constituency abolished. See Dún Laoghaire | Constituency abolished. See Dún Laoghaire | Constituency abolished. See Dún Laoghaire | Constituency abolished. See Dún Laoghaire | Constituency abolished. See Dún Laoghaire |
Note: The columns in this table are used only for presentational purposes, and no significance should be attached to the order of columns. For details of the order in which seats were won at each election, see the detailed results of that election.

## Elections
### 1973 general election

1973 general election: Dún Laoghaire and Rathdown :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 |
| | Fine Gael | Liam Cosgrave | 31.1 | 13,054 | | | | | |
| | Fianna Fáil | David Andrews | 26.0 | 10,926 | | | | | |
| | Labour | Barry Desmond | 13.7 | 5,768 | 6,560 | 6,663 | 6,921 | 8,821 | |
| | Fianna Fáil | Neville Keery | 8.7 | 3,642 | 3,686 | 5,599 | 6,984 | 7,090 | 7,222 |
| | Fine Gael | Michael Carroll | 6.0 | 2,537 | 3,823 | 3,885 | 3,958 | 4,116 | |
| | Fine Gael | Percy Dockrell | 5.3 | 2,206 | 4,584 | 4,631 | 4,734 | 4,932 | 8,448 |
| | Labour | Flor O'Mahony | 4.9 | 2,072 | 2,187 | 2,213 | 2,465 | | |
| | Fianna Fáil | Eric Leonard | 2.9 | 1,209 | 1,229 | 1,596 | | | |
| | Independent | Vincent MacDowell | 1.4 | 591 | 608 | 614 | | | |
| Electorate: 56,151 Valid: 42,005 Quota: 8,402 Turnout: 74.8% ||||||||||

### 1969 general election

1969 general election: Dún Laoghaire and Rathdown :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| | Fine Gael | Liam Cosgrave | 28.8 | 10,825 | | | | | | | | |
| | Fianna Fáil | David Andrews | 27.4 | 10,292 | | | | | | | | |
| | Labour | Barry Desmond | 7.7 | 2,870 | 2,972 | 3,037 | 3,118 | 3,924 | 4,326 | 4,406 | 4,680 | 7,437 |
| | Labour | Flor O'Mahony | 6.9 | 2,570 | 2,623 | 2,666 | 2,712 | 3,126 | 3,413 | 3,468 | 3,585 | |
| | Fine Gael | Percy Dockrell | 6.0 | 2,252 | 4,282 | 4,337 | 4,443 | 4,524 | 4,837 | 4,879 | 7,516 | |
| | Fianna Fáil | Neville Keery | 5.7 | 2,155 | 2,179 | 3,161 | 3,234 | 3,257 | 3,454 | 5,851 | 5,936 | 6,166 |
| | Fine Gael | Michael Carroll | 5.5 | 2,049 | 3,005 | 3,057 | 3,149 | 3,216 | 3,376 | 3,427 | | |
| | Independent | Proinsias Mac Aonghusa | 3.9 | 1,446 | 1,505 | 1,567 | 1,665 | 1,709 | | | | |
| | Labour | James Byrne | 3.7 | 1,386 | 1,421 | 1,483 | 1,510 | | | | | |
| | Fianna Fáil | Carmel Gleeson | 2.9 | 1,097 | 1,122 | 2,551 | 2,642 | 2,668 | 2,855 | | | |
| | Independent | James Guinan | 1.6 | 594 | 627 | 661 | | | | | | |
| Electorate: 52,394 Valid: 37,536 Quota: 7,508 Turnout: 71.6% |||||||||||||

### 1965 general election

1965 general election: Dún Laoghaire and Rathdown :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| | Fine Gael | Liam Cosgrave | 25.7 | 9,696 | | | | | | |
| | Fianna Fáil | David Andrews | 21.0 | 7,932 | | | | | | |
| | Fianna Fáil | Lionel Booth | 14.1 | 5,312 | 5,357 | 5,540 | 5,807 | 5,853 | 10,212 | |
| | Labour | John Fitzgerald | 12.8 | 4,814 | 4,936 | 5,095 | 5,107 | 5,303 | 5,542 | 6,411 |
| | Fianna Fáil | Seán Brady | 12.4 | 4,680 | 4,714 | 4,758 | 4,854 | 4,899 | | |
| | Fine Gael | Percy Dockrell | 7.4 | 2,780 | 4,413 | 4,680 | 4,686 | 6,491 | 6,618 | 7,356 |
| | Fine Gael | James Guinan | 4.8 | 1,816 | 2,081 | 2,155 | 2,158 | | | |
| | Independent | James Deegan | 1.9 | 707 | 756 | | | | | |
| Electorate: 46,696 Valid: 37,737 Quota: 7,548 Turnout: 80.8% |||||||||||

### 1961 general election

1961 general election: Dún Laoghaire and Rathdown :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 |
| | Fine Gael | Liam Cosgrave | 23.6 | 7,154 | | | | |
| | Fianna Fáil | Seán Brady | 16.5 | 4,994 | 5,021 | 6,098 | | |
| | Fianna Fáil | Lionel Booth | 16.0 | 4,859 | 4,878 | 5,413 | 5,932 | 6,198 |
| | Fine Gael | Percy Dockrell | 11.5 | 3,502 | 4,198 | 4,280 | 4,745 | 7,456 |
| | Fine Gael | John Brennan | 9.6 | 2,926 | 3,186 | 3,253 | 3,551 | |
| | Labour | John Fitzgerald | 9.6 | 2,925 | 2,969 | 3,061 | 3,682 | 3,938 |
| | Independent | Seamus Bohan | 6.6 | 2,005 | 2,035 | 2,116 | | |
| | Fianna Fáil | Michael Slattery | 6.5 | 1,968 | 1,979 | | | |
| Electorate: 51,080 Valid: 30,333 Quota: 6,067 Turnout: 59.4% |||||||||

### 1957 general election

1957 general election: Dún Laoghaire and Rathdown :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 |
| | Fine Gael | Liam Cosgrave | 30.8 | 11,107 | | | |
| | Fianna Fáil | Lionel Booth | 24.6 | 8,852 | 8,914 | 9,343 | |
| | Fianna Fáil | Seán Brady | 20.7 | 7,467 | 7,531 | 7,740 | 8,956 |
| | Labour | John Fitzgerald | 10.9 | 3,919 | 4,012 | 4,613 | |
| | Fine Gael | Percy Dockrell | 8.1 | 2,924 | 4,742 | 5,181 | 7,342 |
| | Clann na Poblachta | Patrick Begley | 4.9 | 1,780 | 1,837 | | |
| Electorate: 60,016 Valid: 36,049 Quota: 9,013 Turnout: 60.1% ||||||||

### 1954 general election

1954 general election: Dún Laoghaire and Rathdown :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 |
| | Fine Gael | Liam Cosgrave | 36.4 | 13,609 | | | | |
| | Fianna Fáil | Lionel Booth | 15.9 | 5,941 | 5,970 | 6,942 | 7,401 | 7,868 |
| | Fianna Fáil | Seán Brady | 14.8 | 5,545 | 5,603 | 7,319 | 8,236 | 8,788 |
| | Labour | Joseph Brennan | 13.5 | 5,043 | 5,338 | 5,547 | | |
| | Fine Gael | Percy Dockrell | 11.3 | 4,221 | 8,020 | 8,178 | 11,653 | |
| | Fianna Fáil | Matthew Cullen | 8.0 | 3,008 | 3,094 | | | |
| Electorate: 56,943 Valid: 37,367 Quota: 9,342 Turnout: 65.6% |||||||||

### 1951 general election

1951 general election: Dún Laoghaire and Rathdown :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 |
| | Fine Gael | Liam Cosgrave | 30.7 | 10,043 | | | | |
| | Fianna Fáil | Seán Brady | 25.3 | 8,254 | | | | |
| | Fine Gael | Percy Dockrell | 13.8 | 4,505 | 6,145 | 6,147 | 6,212 | 8,807 |
| | Labour | Joseph Brennan | 12.6 | 4,107 | 4,268 | 4,275 | 4,425 | |
| | Fianna Fáil | Matthew Cullen | 11.6 | 3,800 | 3,845 | 3,905 | 5,654 | 6,811 |
| | Fianna Fáil | Matthew Smith | 6.1 | 1,986 | 2,009 | 2,020 | | |
| Electorate: 49,403 Valid: 32,695 Quota: 8,174 Turnout: 66.2% |||||||||

### 1948 general election

1948 general election: Dún Laoghaire and Rathdown :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 |
| | Fine Gael | Liam Cosgrave | 24.2 | 7,521 | 7,750 | 7,849 | | |
| | Fianna Fáil | Seán Brady | 22.0 | 6,823 | 6,960 | 9,610 | | |
| | Fine Gael | Percy Dockrell | 16.6 | 5,133 | 5,321 | 5,373 | 5,966 | 6,327 |
| | Clann na Poblachta | Joseph Brennan | 12.3 | 3,811 | 4,204 | 4,326 | 4,832 | 8,112 |
| | Clann na Poblachta | Noel Hartnett | 10.6 | 3,281 | 3,703 | 3,775 | 3,968 | |
| | Fianna Fáil | Matt Cullen | 9.5 | 2,953 | 3,044 | | | |
| | Labour | Arnold Marsh | 4.8 | 1,502 | | | | |
| Electorate: 44,212 Valid: 31,024 Quota: 7,757 Turnout: 70.2% |||||||||