# Dublin South (Dáil constituency)

Dublin South was a parliamentary constituency represented in Dáil Éireann, the lower house of the Irish parliament or Oireachtas, from 1981 to 2016 representing an area in the south of County Dublin (later Dún Laoghaire–Rathdown and South Dublin). A previous constituency of the same name existed in Dublin City from 1921 to 1948. The method of election was proportional representation by means of the single transferable vote (PR-STV).

## History and boundaries
### 1921 to 1948

A Dublin South constituency existed in Dublin City from 1921 to 1948. The first constituency of this name was created by the Government of Ireland Act 1920 as a 4-seat constituency for the Southern Ireland House of Commons and a single-seat constituency for the United Kingdom House of Commons at Westminster, combining the former Westminster constituencies of St Patrick's and St Stephen's Green. At the 1921 election for the Southern Ireland House of Commons, the four seats were won uncontested by Sinn Féin, who treated it as part of the election to the Second Dáil. It was never used as a Westminster constituency; under s. 1(4) of the Irish Free State (Agreement) Act 1922, no writ was to be issued "for a constituency in Ireland other than a constituency in Northern Ireland". Therefore, no vote was held in Dublin South at the 1922 United Kingdom general election on 15 November 1922, shortly before the Irish Free State left the United Kingdom on 6 December 1922. It was restructured by the Electoral Act 1923, the first electoral act of the new state.

### 1981–2016

A new constituency was created by the Electoral (Amendment) Act 1980 and was first used at the 1981 general election. This Dublin South (1981–2016) was one of Ireland's most affluent constituencies. The 2006 census reported that residents tended to have higher-than-average levels of educational attainment, especially in terms of third-level qualifications, and were much more likely to work in professional and managerial positions. "Volatile, unpredictable and utterly ruthless, Dublin South voters have hired and fired TDs with abandon over the years" – The Irish Times description of the constituency in August 2012.

## TDs
### TDs 1921–1948

Teachtaí Dála (TDs) for Dublin South 1921–1948 :
| Key to parties  CnaG = Cumann na nGaedheal  FF = Fianna Fáil  FG = Fine Gael  Ind = Independent  Lab = Labour  NL = National League  Rep = Republican  SF = Sinn Féin  PT-SF = Sinn Féin (Pro-Treaty) ||||||||||||||||
| Dáil | Election | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) |
| 2nd | 1921 | | Thomas Kelly (SF) | | Daniel McCarthy (SF) | | Constance Markievicz (SF) | | Cathal Ó Murchadha (SF) | 4 seats 1921–1923 | 4 seats 1921–1923 | 4 seats 1921–1923 | 4 seats 1921–1923 | 4 seats 1921–1923 | 4 seats 1921–1923 |
| 3rd | 1922 | | Thomas Kelly (PT-SF) | | Daniel McCarthy (PT-SF) | | William O'Brien (Lab) | | Myles Keogh (Ind) | 4 seats 1921–1923 | 4 seats 1921–1923 | 4 seats 1921–1923 | 4 seats 1921–1923 | 4 seats 1921–1923 | 4 seats 1921–1923 |
| 4th | 1923 | | Philip Cosgrave (CnaG) | | Daniel McCarthy (CnaG) | | Constance Markievicz (Rep) | | Myles Keogh (Ind) | | Cathal Ó Murchadha (Rep) | | Michael Hayes (CnaG) | | Peadar Doyle (CnaG) |
| 4th | 1923 by-election | | Philip Cosgrave (CnaG) | | Daniel McCarthy (CnaG) | | Constance Markievicz (Rep) | | Myles Keogh (Ind) | | Cathal Ó Murchadha (Rep) | | Hugh Kennedy (CnaG) | | Peadar Doyle (CnaG) |
| 4th | March 1924 by-election | | James O'Mara (CnaG) | | Daniel McCarthy (CnaG) | | Constance Markievicz (Rep) | | Myles Keogh (Ind) | | Cathal Ó Murchadha (Rep) | | Hugh Kennedy (CnaG) | | Peadar Doyle (CnaG) |
| 4th | November 1924 by-election | | James O'Mara (CnaG) | | Daniel McCarthy (CnaG) | | Constance Markievicz (Rep) | | Myles Keogh (Ind) | | Cathal Ó Murchadha (Rep) | | Seán Lemass (SF) | | Peadar Doyle (CnaG) |
| 4th | 1925 by-election | | James O'Mara (CnaG) | | Thomas Hennessy (CnaG) | | Constance Markievicz (Rep) | | Myles Keogh (Ind) | | Cathal Ó Murchadha (Rep) | | Seán Lemass (SF) | | Peadar Doyle (CnaG) |
| 5th | 1927 (Jun) | | James Beckett (CnaG) | | Vincent Rice (NL) | | Constance Markievicz (FF) | | Myles Keogh (Ind) | | Thomas Lawlor (Lab) | | Seán Lemass (FF) | | Peadar Doyle (CnaG) |
| 5th | 1927 by-election | | James Beckett (CnaG) | | Vincent Rice (NL) | | Thomas Hennessy (CnaG) | | Myles Keogh (Ind) | | Thomas Lawlor (Lab) | | Seán Lemass (FF) | | Peadar Doyle (CnaG) |
| 6th | 1927 (Sep) | | James Beckett (CnaG) | | Robert Briscoe (FF) | | Thomas Hennessy (CnaG) | | Myles Keogh (CnaG) | | Frank Kerlin (FF) | | Seán Lemass (FF) | | Peadar Doyle (CnaG) |
| 7th | 1932 | | James Beckett (CnaG) | | Robert Briscoe (FF) | | Thomas Hennessy (CnaG) | | Myles Keogh (CnaG) | | James Lynch (FF) | | Seán Lemass (FF) | | Peadar Doyle (CnaG) |
| 8th | 1933 | | James Beckett (CnaG) | | Robert Briscoe (FF) | | James McGuire (CnaG) | | Thomas Kelly (FF) | | James Lynch (FF) | | Seán Lemass (FF) | | Peadar Doyle (CnaG) |
| 9th | 1937 | | Myles Keogh (FG) | | Robert Briscoe (FF) | | Thomas Lawlor (Lab) | | Thomas Kelly (FF) | | Joseph Hannigan (Ind) | | Seán Lemass (FF) | | Peadar Doyle (FG) |
| 10th | 1938 | | James Beckett (FG) | | Robert Briscoe (FF) | | James Lynch (FF) | | Thomas Kelly (FF) | | Joseph Hannigan (Ind) | | Seán Lemass (FF) | | Peadar Doyle (FG) |
| 10th | 1939 by-election | | John McCann (FF) | | Robert Briscoe (FF) | | James Lynch (FF) | | Thomas Kelly (FF) | | Joseph Hannigan (Ind) | | Seán Lemass (FF) | | Peadar Doyle (FG) |
| 11th | 1943 | | Maurice Dockrell (FG) | | Robert Briscoe (FF) | | James Lynch (FF) | | James Larkin Jnr (Lab) | | John McCann (FF) | | Seán Lemass (FF) | | Peadar Doyle (FG) |
| 12th | 1944 | | Maurice Dockrell (FG) | | Robert Briscoe (FF) | | James Lynch (FF) | | James Larkin Jnr (Lab) | | John McCann (FF) | | Seán Lemass (FF) | | Peadar Doyle (FG) |
| 13th | 1948 | Constituency abolished. See Dublin South-Central, Dublin South-East and Dublin South-West. | Constituency abolished. See Dublin South-Central, Dublin South-East and Dublin South-West. | Constituency abolished. See Dublin South-Central, Dublin South-East and Dublin South-West. | Constituency abolished. See Dublin South-Central, Dublin South-East and Dublin South-West. | Constituency abolished. See Dublin South-Central, Dublin South-East and Dublin South-West. | Constituency abolished. See Dublin South-Central, Dublin South-East and Dublin South-West. | Constituency abolished. See Dublin South-Central, Dublin South-East and Dublin South-West. | Constituency abolished. See Dublin South-Central, Dublin South-East and Dublin South-West. | Constituency abolished. See Dublin South-Central, Dublin South-East and Dublin South-West. | Constituency abolished. See Dublin South-Central, Dublin South-East and Dublin South-West. | Constituency abolished. See Dublin South-Central, Dublin South-East and Dublin South-West. | Constituency abolished. See Dublin South-Central, Dublin South-East and Dublin South-West. | Constituency abolished. See Dublin South-Central, Dublin South-East and Dublin South-West. | Constituency abolished. See Dublin South-Central, Dublin South-East and Dublin South-West. |
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.

### TDs 1981–2016

Note that the boundaries of Dublin South from 1981–2016 share no common territory with the 1921–1948 boundaries. See §History and boundaries
Teachtaí Dála (TDs) for Dublin South 1981–2016 :
| Key to parties  FF = Fianna Fáil  FG = Fine Gael  GP = Green  Ind = Independent  Lab = Labour  PDs = Progressive Democrats ||||||||||||
| Dáil | Election | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) |
| 22nd | 1981 | | Niall Andrews (FF) | | Séamus Brennan (FF) | | Nuala Fennell (FG) | | John Kelly (FG) | | Alan Shatter (FG) |
| 23rd | 1982 (Feb) | | Niall Andrews (FF) | | Séamus Brennan (FF) | | Nuala Fennell (FG) | | John Kelly (FG) | | Alan Shatter (FG) |
| 24th | 1982 (Nov) | | Niall Andrews (FF) | | Séamus Brennan (FF) | | Nuala Fennell (FG) | | John Kelly (FG) | | Alan Shatter (FG) |
| 25th | 1987 | | Tom Kitt (FF) | | Séamus Brennan (FF) | | Anne Colley (PDs) | | John Kelly (FG) | | Alan Shatter (FG) |
| 26th | 1989 | | Tom Kitt (FF) | | Séamus Brennan (FF) | | Nuala Fennell (FG) | | Roger Garland (GP) | | Alan Shatter (FG) |
| 27th | 1992 | | Tom Kitt (FF) | | Séamus Brennan (FF) | | Liz O'Donnell (PDs) | | Eithne FitzGerald (Lab) | | Alan Shatter (FG) |
| 28th | 1997 | | Tom Kitt (FF) | | Séamus Brennan (FF) | | Liz O'Donnell (PDs) | | Olivia Mitchell (FG) | | Alan Shatter (FG) |
| 29th | 2002 | | Tom Kitt (FF) | | Séamus Brennan (FF) | | Liz O'Donnell (PDs) | | Olivia Mitchell (FG) | | Eamon Ryan (GP) |
| 30th | 2007 | | Tom Kitt (FF) | | Séamus Brennan (FF) | | Alan Shatter (FG) | | Olivia Mitchell (FG) | | Eamon Ryan (GP) |
| 30th | 2009 by-election | | Tom Kitt (FF) | | George Lee (FG) | | Alan Shatter (FG) | | Olivia Mitchell (FG) | | Eamon Ryan (GP) |
| 31st | 2011 | | Shane Ross (Ind) | | Peter Mathews (FG) | | Alan Shatter (FG) | | Olivia Mitchell (FG) | | Alex White (Lab) |
| 32nd | 2016 | Constituency abolished. See Dublin Rathdown, Dublin South-West and Dún Laoghaire. | Constituency abolished. See Dublin Rathdown, Dublin South-West and Dún Laoghaire. | Constituency abolished. See Dublin Rathdown, Dublin South-West and Dún Laoghaire. | Constituency abolished. See Dublin Rathdown, Dublin South-West and Dún Laoghaire. | Constituency abolished. See Dublin Rathdown, Dublin South-West and Dún Laoghaire. | Constituency abolished. See Dublin Rathdown, Dublin South-West and Dún Laoghaire. | Constituency abolished. See Dublin Rathdown, Dublin South-West and Dún Laoghaire. | Constituency abolished. See Dublin Rathdown, Dublin South-West and Dún Laoghaire. | Constituency abolished. See Dublin Rathdown, Dublin South-West and Dún Laoghaire. | Constituency abolished. See Dublin Rathdown, Dublin South-West and 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
### 2011 general election

2011 general election: Dublin South :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| | Independent | Shane Ross | 23.5 | 17,075 | | | | | | | |
| | Fine Gael | Olivia Mitchell | 13.3 | 9,635 | 10,454 | 10,577 | 10,661 | 10,763 | 11,159 | 11,627 | 13,379 |
| | Fine Gael | Peter Mathews | 12.5 | 9,053 | 9,805 | 9,987 | 10,047 | 10,173 | 10,494 | 10,820 | 12,070 |
| | Labour | Alex White | 11.7 | 8,524 | 9,319 | 9,467 | 9,747 | 10,407 | 14,203 | | |
| | Fine Gael | Alan Shatter | 10.6 | 7,716 | 8,499 | 8,580 | 8,626 | 8,738 | 8,966 | 9,301 | 10,611 |
| | Fianna Fáil | Maria Corrigan | 9.4 | 6,844 | 7,168 | 7,332 | 7,400 | 7,564 | 7,762 | 7,932 | 9,163 |
| | Green | Eamon Ryan | 6.8 | 4,929 | 5,489 | 5,626 | 5,798 | 6,120 | 6,536 | 7,332 | |
| | Labour | Aidan Culhane | 6.2 | 4,535 | 4,839 | 4,940 | 5,232 | 5,691 | | | |
| | Sinn Féin | Sorcha Nic Cormaic | 2.6 | 1,915 | 2,065 | 2,186 | 2,617 | | | | |
| | People Before Profit | Nicola Curry | 1.8 | 1,277 | 1,455 | 1,664 | | | | | |
| | Christian Solidarity | Jane Murphy | 0.4 | 277 | 296 | | | | | | |
| | Independent | Buhidma Hussein Hamed | 0.4 | 273 | 318 | | | | | | |
| | Independent | John Doyle | 0.3 | 246 | 343 | | | | | | |
| | Independent | Gerard Dolan | 0.2 | 156 | 192 | | | | | | |
| | Independent | Raymond Whitehead | 0.2 | 120 | 211 | | | | | | |
| | Independent | Eamonn Zaidan | 0.1 | 71 | 85 | | | | | | |
| Electorate: 102,387 Valid: 72,646 Spoilt: 459 (0.6%) Quota: 12,108 Turnout: 73,105 (71.4%) ||||||||||||

### 2009 by-election

Following the death of Fianna Fáil TD Séamus Brennan, a by-election was held on 5 June 2009. The seat was won by the Fine Gael candidate George Lee.
2009 by-election: Dublin South :
| Party | Party | Candidate | FPv% | Count |
| Party | Party | Candidate | FPv% | 1 |
| | Fine Gael | George Lee | 53.4 | 27,768 |
| | Labour | Alex White | 19.8 | 10,294 |
| | Fianna Fáil | Shay Brennan | 17.8 | 9,250 |
| | Green | Elizabeth Davidson | 3.5 | 1,846 |
| | Sinn Féin | Shaun Tracey | 3.3 | 1,705 |
| | Independent | Ross O'Mullane | 1.2 | 650 |
| | Independent | Frank O'Gorman | 0.7 | 351 |
| | Independent | Noel O'Gara | 0.3 | 172 |
| Electorate: 90,802 Valid: 52,036 Spoilt: 443 (0.8%) Quota: 26,019 Turnout: 52,479 (57.8%) |||||

### 2007 general election

2007 general election: Dublin South :
| 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 |
| | Fianna Fáil | Séamus Brennan | 21.8 | 13,373 | | | | | | | | |
| | Fine Gael | Olivia Mitchell | 14.8 | 8,037 | 8,148 | 8,227 | 8,236 | 9,544 | 9,991 | 10,846 | | |
| | Fianna Fáil | Tom Kitt | 13.9 | 8,487 | 10,124 | 10,425 | | | | | | |
| | Green | Eamon Ryan | 11.1 | 6,768 | 6,885 | 7,483 | 7,511 | 7,814 | 8,379 | 9,181 | 11,889 | |
| | Fine Gael | Alan Shatter | 9.4 | 5,752 | 5,820 | 5,871 | 5,875 | 6,658 | 6,892 | 7,366 | 9,456 | 10,805 |
| | Progressive Democrats | Liz O'Donnell | 6.6 | 4,045 | 4,254 | 4,328 | 4,337 | 4,426 | 4,520 | | | |
| | Labour | Alex White | 5.8 | 3,575 | 3,629 | 3,843 | 3,854 | 4,045 | 5,739 | 5,962 | | |
| | Fianna Fáil | Maria Corrigan | 5.6 | 3,438 | 4,278 | 4,515 | 4,655 | 4,748 | 4,893 | 6,816 | 7,317 | 7,656 |
| | Fine Gael | Jim O'Leary | 4.7 | 2,897 | 2,928 | 2,991 | 2,997 | | | | | |
| | Labour | Aidan Culhane | 4.6 | 2,809 | 2,867 | 3,052 | 3,069 | 3,255 | | | | |
| | Sinn Féin | Sorcha Nic Cormaic | 1.6 | 992 | 1,021 | | | | | | | |
| | Sinn Féin | Shaun Tracey | 1.4 | 851 | 864 | | | | | | | |
| | Fathers Rights | Liam Ó Gógáin | 0.3 | 180 | 185 | | | | | | | |
| Electorate: 89,464 Valid: 61,204 Spoilt: 418 (0.7%) Quota: 10,201 Turnout: 61,622 (68.9%) |||||||||||||

### 2002 general election

2002 general election: Dublin South :
| 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 |
| | Fianna Fáil | Séamus Brennan | 16.9 | 9,326 | | | | | | | | |
| | Progressive Democrats | Liz O'Donnell | 15.0 | 8,288 | 8,344 | 8,356 | 8,647 | 8,816 | 9,315 | | | |
| | Fianna Fáil | Tom Kitt | 14.0 | 7,744 | 7,857 | 7,917 | 8,117 | 8,496 | 10,926 | | | |
| | Fine Gael | Olivia Mitchell | 10.1 | 5,568 | 5,629 | 5,633 | 5,844 | 5,928 | 6,142 | 6,540 | 11,048 | |
| | Fine Gael | Alan Shatter | 9.7 | 5,363 | 5,410 | 5,413 | 5,568 | 5,653 | 5,693 | 5,833 | | |
| | Labour | Eithne FitzGerald | 9.5 | 5,247 | 5,400 | 5,404 | 5,723 | 6,077 | 6,232 | 6,483 | 7,108 | 8,263 |
| | Green | Eamon Ryan | 9.4 | 5,222 | 5,482 | 5,485 | 6,161 | 7,124 | 7,319 | 8,019 | 8,546 | 9,228 |
| | Fianna Fáil | Maria Corrigan | 5.8 | 3,180 | 3,220 | 3,245 | 3,418 | 3,648 | | | | |
| | Sinn Féin | Deirdre Whelan | 3.9 | 2,172 | 2,345 | 2,347 | 2,474 | | | | | |
| | Ind. Health Alliance | Karen Canning | 3.8 | 2,090 | 2,207 | 2,209 | | | | | | |
| | Socialist Party | Lisa Maher | 1.9 | 1,063 | | | | | | | | |
| Electorate: 92,645 Valid: 55,263 Spoilt: 427 (0.8%) Quota: 9,211 Turnout: 55,690 (60.1%) |||||||||||||

### 1997 general election

1997 general election: Dublin South :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| | Fianna Fáil | Tom Kitt | 17.1 | 9,904 | | | | | | | |
| | Fianna Fáil | Séamus Brennan | 15.3 | 8,861 | 8,928 | 9,041 | 9,187 | 9,539 | 12,058 | | |
| | Fine Gael | Olivia Mitchell | 15.1 | 8,775 | 8,829 | 8,837 | 9,015 | 9,184 | 9,342 | 9,415 | 10,136 |
| | Fine Gael | Alan Shatter | 14.0 | 8,094 | 8,157 | 8,165 | 8,272 | 8,352 | 8,556 | 8,659 | 9,364 |
| | Labour | Eithne FitzGerald | 10.6 | 6,147 | 6,272 | 6,280 | 6,485 | 6,562 | 6,667 | 6,756 | 8,158 |
| | Progressive Democrats | Liz O'Donnell | 9.4 | 5,444 | 5,491 | 5,520 | 5,669 | 5,784 | 6,593 | 8,104 | 9,070 |
| | Fianna Fáil | Ann Ormonde | 6.3 | 3,629 | 3,683 | 3,744 | 3,837 | 4,091 | | | |
| | Green | Gerry Boland | 6.1 | 3,539 | 3,780 | 3,785 | 4,141 | 4,432 | 4,582 | 4,818 | |
| | Independent | Richard Greene | 2.5 | 1,431 | 1,482 | 1,485 | 1,585 | | | | |
| | Independent | Christine Buckley | 2.2 | 1,268 | 1,426 | 1,430 | | | | | |
| | Socialist Party | Lisa Maher | 1.1 | 624 | | | | | | | |
| | Natural Law | Jack Lyons | 0.2 | 115 | | | | | | | |
| | Independent | Johnny Kingsize Doody | 0.1 | 80 | | | | | | | |
| | Independent | Gerard P. Dolan | 0.1 | 75 | | | | | | | |
| Electorate: 90,050 Valid: 57,986 Spoilt: 335 (0.6%) Quota: 9,665 Turnout: 58,321 (64.8%) ||||||||||||

### 1992 general election

1992 general election: Dublin South :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| | Labour | Eithne FitzGerald | 28.9 | 17,256 | | | | | | | | | | | |
| | Fianna Fáil | Séamus Brennan | 15.2 | 9,074 | 9,514 | 9,531 | 9,587 | 9,627 | 9,687 | 10,001 | | | | | |
| | Fianna Fáil | Tom Kitt | 12.3 | 7,304 | 7,891 | 7,900 | 7,969 | 8,014 | 8,079 | 8,303 | 11,005 | | | | |
| | Fine Gael | Alan Shatter | 10.5 | 6,244 | 7,494 | 7,503 | 7,513 | 7,580 | 7,862 | 7,938 | 8,118 | 8,303 | 8,309 | 9,657 | 10,685 |
| | Progressive Democrats | Liz O'Donnell | 8.7 | 5,162 | 6,240 | 6,249 | 6,270 | 6,317 | 6,603 | 6,777 | 6,979 | 7,225 | 7,235 | 7,617 | 8,790 |
| | Fianna Fáil | Ann Ormonde | 5.2 | 3,085 | 3,287 | 3,291 | 3,320 | 3,333 | 3,377 | 3,623 | | | | | |
| | Fine Gael | Maurice Manning | 5.1 | 3,065 | 3,677 | 3,682 | 3,693 | 3,716 | 3,786 | 3,902 | 3,952 | 4,062 | 4,071 | | |
| | Fine Gael | Olivia Mitchell | 4.6 | 2,764 | 3,584 | 3,589 | 3,598 | 3,641 | 3,763 | 3,864 | 3,974 | 4,098 | 4,106 | 6,188 | 7,012 |
| | Green | Roger Garland | 3.8 | 2,258 | 3,086 | 3,089 | 3,218 | 3,303 | 3,908 | 4,365 | 4,516 | 4,916 | 4,944 | 5,047 | |
| | Independent | Richard Greene | 2.8 | 1,671 | 1,854 | 1,870 | 1,946 | 2,180 | 2,324 | | | | | | |
| | Democratic Left | Marian White | 1.1 | 640 | 1,770 | 1,774 | 1,827 | 1,860 | | | | | | | |
| | Independent | Owen Connolly | 0.9 | 506 | 588 | 645 | 674 | | | | | | | | |
| | Sinn Féin | George Robert Keegan | 0.8 | 486 | 561 | 566 | | | | | | | | | |
| | Independent | Kevin Stewart Blair | 0.2 | 119 | 148 | | | | | | | | | | |
| Electorate: 85,553 Valid: 59,634 Spoilt: 605 (1.0%) Quota: 9,940 Turnout: 60,239 (70.4%) ||||||||||||||||

### 1989 general election

1989 general election: Dublin South :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| | Fianna Fáil | Séamus Brennan | 25.7 | 13,927 | | | | | | | |
| | Fine Gael | Alan Shatter | 14.7 | 7,969 | 8,143 | 8,205 | 8,275 | 9,382 | | | |
| | Fianna Fáil | Tom Kitt | 13.3 | 7,217 | 10,669 | | | | | | |
| | Fine Gael | Nuala Fennell | 9.2 | 4,983 | 5,088 | 5,105 | 5,153 | 6,340 | 6,779 | 7,045 | 8,337 |
| | Green | Roger Garland | 8.8 | 4,771 | 4,900 | 4,939 | 5,372 | 5,451 | 6,485 | 6,500 | 8,832 |
| | Progressive Democrats | Anne Colley | 8.5 | 4,607 | 4,814 | 4,846 | 4,906 | 5,192 | 5,720 | 5,776 | 6,717 |
| | Labour | Eithne FitzGerald | 7.6 | 4,134 | 4,233 | 4,258 | 4,927 | 5,026 | 5,461 | 5,478 | |
| | Fine Gael | Olivia Mitchell | 5.1 | 2,786 | 2,822 | 2,834 | 2,860 | | | | |
| | Fianna Fáil | Ann Ormonde | 4.3 | 2,328 | 3,003 | 4,446 | 4,518 | 4,581 | | | |
| | Workers' Party | Eamonn O'Liatháin | 2.7 | 1,440 | 1,462 | 1,473 | | | | | |
| Electorate: 82,936 Valid: 54,162 Quota: 9,028 Turnout: 65.3% ||||||||||||

### 1987 general election

1987 general election: Dublin South :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| | Progressive Democrats | Anne Colley | 20.9 | 11,957 | | | | | | | | | | | |
| | Fianna Fáil | Séamus Brennan | 17.3 | 9,940 | | | | | | | | | | | |
| | Fianna Fáil | Tom Kitt | 14.7 | 8,423 | 8,640 | 8,929 | 8,954 | 8,959 | 8,983 | 9,023 | 9,240 | 9,536 | 9,794 | | |
| | Fine Gael | John Kelly | 12.6 | 7,247 | 7,975 | 7,986 | 7,999 | 8,015 | 8,035 | 8,045 | 8,093 | 8,317 | 8,599 | 8,620 | 8,877 |
| | Fine Gael | Alan Shatter | 10.0 | 5,720 | 6,203 | 6,210 | 6,212 | 6,223 | 6,234 | 6,250 | 6,303 | 6,427 | 6,666 | 6,683 | 6,851 |
| | Fine Gael | Nuala Fennell | 8.3 | 4,737 | 5,269 | 5,277 | 5,278 | 5,287 | 5,295 | 5,310 | 5,365 | 5,508 | 5,720 | 5,731 | 5,881 |
| | Labour | Eithne FitzGerald | 4.7 | 2,684 | 2,833 | 2,841 | 2,847 | 2,857 | 2,864 | 2,883 | 3,340 | 3,603 | 4,242 | 4,263 | 4,772 |
| | Fianna Fáil | Ann Ormonde | 3.7 | 2,133 | 2,183 | 2,234 | 2,241 | 2,252 | 2,257 | 2,273 | 2,337 | 2,403 | 2,549 | 2,691 | |
| | Green | Roger Garland | 2.4 | 1,377 | 1,455 | 1,457 | 1,466 | 1,483 | 1,506 | 1,560 | 1,824 | 2,155 | | | |
| | Workers' Party | Eamonn Ó Liathain | 2.3 | 1,308 | 1,347 | 1,350 | 1,352 | 1,357 | 1,373 | 1,400 | 1,566 | | | | |
| | Independent | Mairead Duchon | 2.2 | 1,253 | 1,338 | 1,342 | 1,363 | 1,384 | 1,415 | 1,437 | | | | | |
| | Independent | Thomas Sharkey | 0.3 | 189 | 203 | 204 | 213 | 222 | 240 | | | | | | |
| | Independent | Padraig O'Neill | 0.3 | 142 | 154 | 154 | 163 | 170 | | | | | | | |
| | Independent | Barbara Hyland | 0.2 | 114 | 125 | 125 | 127 | | | | | | | | |
| | Independent | Martin MacFeorais | 0.2 | 107 | 110 | 110 | | | | | | | | | |
| Electorate: 77,519 Valid: 57,331 Quota: 9,556 Turnout: 73.9% ||||||||||||||||

### November 1982 general election

November 1982 general election: Dublin South :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| | Fine Gael | John Kelly | 18.6 | 9,774 | | | | | | | |
| | Fine Gael | Alan Shatter | 14.6 | 7,655 | 8,147 | 8,189 | 8,362 | 8,372 | 8,503 | 9,973 | |
| | Fianna Fáil | Séamus Brennan | 13.8 | 7,219 | 7,244 | 7,263 | 7,341 | 7,752 | 7,814 | 7,895 | 7,986 |
| | Fine Gael | Nuala Fennell | 13.6 | 7,106 | 7,418 | 7,447 | 7,618 | 7,634 | 7,766 | 9,124 | |
| | Fianna Fáil | Niall Andrews | 12.6 | 6,597 | 6,602 | 6,620 | 6,672 | 7,224 | 7,272 | 7,342 | 7,388 |
| | Fianna Fáil | Tom Kitt | 7.7 | 4,009 | 4,016 | 4,032 | 4,081 | 4,415 | 4,473 | 4,577 | 4,647 |
| | Fine Gael | Thomas Hand | 5.6 | 2,959 | 3,133 | 3,145 | 3,221 | 3,236 | 3,317 | | |
| | Labour | Eithne FitzGerald | 4.6 | 2,388 | 2,400 | 2,559 | 2,789 | 2,807 | 4,426 | 4,611 | 5,498 |
| | Labour | Frank Buckley | 3.7 | 1,911 | 1,917 | 1,998 | 2,127 | 2,150 | | | |
| | Fianna Fáil | Ruairí Brugha | 2.6 | 1,353 | 1,355 | 1,358 | 1,391 | | | | |
| | Green | Roger Garland | 1.8 | 950 | 953 | 1,051 | | | | | |
| | Democratic Socialist | Denis O'Connor | 0.9 | 479 | 481 | | | | | | |
| Electorate: 71,755 Valid: 52,400 Quota: 8,734 Turnout: 73.0% ||||||||||||

### February 1982 general election

February 1982 general election: Dublin South :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| | Fine Gael | John Kelly | 21.0 | 10,809 | | | | | | |
| | Fianna Fáil | Séamus Brennan | 15.6 | 8,055 | 8,107 | 8,176 | 9,555 | | | |
| | Fine Gael | Alan Shatter | 13.2 | 6,779 | 7,790 | 8,878 | | | | |
| | Fine Gael | Nuala Fennell | 11.3 | 5,799 | 6,488 | 7,578 | 7,729 | 7,766 | 11,554 | |
| | Fianna Fáil | Niall Andrews | 9.6 | 4,936 | 4,951 | 5,018 | 5,904 | 6,667 | 7,168 | 8,612 |
| | Fianna Fáil | Síle de Valera | 9.4 | 4,843 | 4,850 | 4,895 | 5,550 | 5,702 | 6,010 | 6,356 |
| | Labour | John Horgan | 8.9 | 4,589 | 4,705 | 5,048 | 5,188 | 5,215 | | |
| | Fianna Fáil | Tom Kitt | 6.1 | 3,133 | 3,150 | 3,249 | | | | |
| | Fine Gael | Thomas Hand | 4.9 | 2,511 | 2,837 | | | | | |
| Electorate: 69,195 Valid: 51,454 Spoilt: 312 (0.6%) Quota: 8,576 Turnout: 51,766 (74.8%) |||||||||||

### 1981 general election

1981 general election: Dublin South :
| 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 | John Kelly | 15.7 | 7,964 | 8,057 | 8,073 | 8,132 | 8,180 | 8,187 | 9,000 | | |
| | Fianna Fáil | Séamus Brennan | 15.3 | 7,779 | 7,838 | 7,861 | 7,904 | 8,862 | | | | |
| | Fianna Fáil | Niall Andrews | 11.2 | 5,690 | 5,732 | 5,752 | 5,777 | 6,522 | 6,796 | 6,943 | 7,090 | 7,421 |
| | Fianna Fáil | Síle de Valera | 10.6 | 5,408 | 5,444 | 5,464 | 5,496 | 6,066 | 6,146 | 6,241 | 6,320 | 6,621 |
| | Fine Gael | Alan Shatter | 9.4 | 4,762 | 4,942 | 4,963 | 5,045 | 5,134 | 5,143 | 5,557 | 7,226 | 8,866 |
| | Fine Gael | Nuala Fennell | 8.9 | 4,527 | 4,614 | 4,654 | 4,819 | 4,901 | 4,912 | 5,470 | 7,288 | 9,304 |
| | Fine Gael | Alexis FitzGerald | 6.9 | 3,495 | 3,549 | 3,577 | 3,620 | 3,652 | 3,655 | 4,179 | | |
| | Labour | John Horgan | 5.9 | 3,004 | 3,152 | 3,392 | 4,488 | 4,558 | 4,564 | 4,808 | 5,121 | |
| | Fianna Fáil | Tom Kitt | 5.2 | 2,636 | 2,666 | 2,679 | 2,703 | | | | | |
| | Fine Gael | Thomas Hand | 5.2 | 2,621 | 2,655 | 2,682 | 2,758 | 2,849 | 2,853 | | | |
| | Labour | Eithne FitzGerald | 2.5 | 1,258 | 1,367 | 1,661 | | | | | | |
| | Labour | Frank Buckley | 1.4 | 711 | 750 | | | | | | | |
| | Independent | Norman Simpson | 1.2 | 616 | | | | | | | | |
| | Socialist Party | Denis O'Connor | 0.7 | 335 | | | | | | | | |
| Electorate: 69,195 Valid: 50,806 Quota: 8,468 Turnout: 73.4% |||||||||||||

### 1944 general election

Full figures for the second count to the eighth count are unavailable. Byrne, Bourke and Hannigan all lost their deposits.
1944 general election: Dublin South :
| 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 |
| | Fianna Fáil | Seán Lemass | 31.3 | 15,385 | | | | | | | | |
| | Fine Gael | Peadar Doyle | 11.1 | 5,442 | 5,667 | N/A | N/A | N/A | N/A | 6,565 | | |
| | Fine Gael | Maurice E. Dockrell | 8.9 | 4,355 | 4,419 | N/A | N/A | N/A | N/A | N/A | N/A | 6,051 |
| | Fianna Fáil | John McCann | 8.8 | 4,323 | 6,602 | | | | | | | |
| | Labour | James Larkin Jnr | 7.3 | 3,587 | 3,849 | N/A | N/A | N/A | N/A | N/A | N/A | 6,658 |
| | Labour | Walter Beirne | 7.3 | 3,571 | 3,686 | N/A | | | | | | |
| | Fianna Fáil | Andrew Clarkin | 6.8 | 3,328 | 4,389 | N/A | N/A | N/A | N/A | N/A | N/A | 5,238 |
| | Fianna Fáil | James B. Lynch | 6.4 | 3,148 | 6,085 | 6,332 | | | | | | |
| | Fianna Fáil | Robert Briscoe | 5.8 | 2,852 | 4,935 | N/A | N/A | N/A | N/A | N/A | N/A | 6,029 |
| | Independent | Joseph Hannigan | 3.7 | 1,824 | 1,983 | N/A | | | | | | |
| | Fine Gael | Thomas Bourke | 1.4 | 689 | 711 | N/A | | | | | | |
| | Fine Gael | Michael Byrne | 1.4 | 674 | 704 | N/A | | | | | | |
| Electorate: 81,004 Valid: 49,178 Quota: 6,148 Turnout: 60.7% |||||||||||||

### 1943 general election

Full figures for the second to the fifteenth counts are unavailable. Dowling, Donnelly, Hynes, Sheehy-Skeffington, Rice, Keogh, Hosey and O'Higgins all lost their deposits.
1943 general election: Dublin South :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
| | Fianna Fáil | Seán Lemass | 30.9 | 16,399 | | | | | | | | | | | | | | | |
| | Fine Gael | Peadar Doyle | 9.4 | 4,971 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7,078 | | | | | | |
| | Labour | Walter Beirne | 6.3 | 3,326 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5,360 |
| | Fianna Fáil | John McCann | 5.9 | 3,133 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7,180 | | | | | |
| | Fianna Fáil | Robert Briscoe | 5.9 | 3,127 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6,678 | | | |
| | Labour | James Larkin Jnr | 5.7 | 3,049 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5,606 |
| | Fine Gael | Maurice E. Dockrell | 5.3 | 2,841 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6,887 | | |
| | Fianna Fáil | James B. Lynch | 5.0 | 2,666 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6,683 | | | | | |
| | Labour | Joseph Hannigan | 4.4 | 2,345 | | | | | | | | | | | | | | | |
| | Fianna Fáil | Peter White | 3.1 | 1,639 | | | | | | | | | | | | | | | |
| | Fine Gael | Patrick Cahill | 2.9 | 1,525 | | | | | | | | | | | | | | | |
| | Fine Gael | Tom O'Higgins | 2.8 | 1,461 | | | | | | | | | | | | | | | |
| | Fine Gael | Edward D. Hosey | 2.4 | 1,280 | | | | | | | | | | | | | | | |
| | Fine Gael | Myles Keogh | 2.2 | 1,152 | | | | | | | | | | | | | | | |
| | Independent | Vincent Rice | 2.1 | 1,104 | | | | | | | | | | | | | | | |
| | Independent | Hanna Sheehy-Skeffington | 1.7 | 917 | | | | | | | | | | | | | | | |
| | Labour | Owen Hynes | 1.6 | 873 | | | | | | | | | | | | | | | |
| | Córas na Poblachta | Simon Donnelly | 1.5 | 820 | | | | | | | | | | | | | | | |
| | Córas na Poblachta | Seán Dowling | 0.9 | 494 | | | | | | | | | | | | | | | |
| Electorate: 81,004 Valid: 53,122 Quota: 6,641 Turnout: 65.6% ||||||||||||||||||||

### 1939 by-election

Following the death of Fine Gael TD James Beckett, a by-election was held on 6 June 1939. The seat was won by the Fianna Fáil candidate John McCann.
1939 by-election: Dublin South :
| Party | Party | Candidate | FPv% | Count |
| Party | Party | Candidate | FPv% | 1 |
| | Fianna Fáil | John McCann | 55.8 | 20,059 |
| | Fine Gael | Patrick Cahill | 44.2 | 15,877 |
| Electorate: 80,961 Valid: 35,936 Quota: 17,969 Turnout: 44.4% |||||

### 1938 general election

1938 general election: Dublin South :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| | Fianna Fáil | Seán Lemass | 25.7 | 14,151 | | | | | | | | | |
| | Fine Gael | Peadar Doyle | 12.5 | 6,877 | 7,022 | | | | | | | | |
| | Fianna Fáil | John McCann | 8.7 | 4,806 | 5,552 | 5,561 | 5,587 | 5,608 | 5,739 | 5,947 | 6,015 | 6,086 | 6,187 |
| | Fine Gael | James Beckett | 8.5 | 4,681 | 4,743 | 4,747 | 4,763 | 4,968 | 4,997 | 5,272 | 8,564 | | |
| | Fianna Fáil | James B. Lynch | 8.0 | 4,401 | 5,713 | 5,725 | 5,766 | 5,784 | 5,919 | 6,450 | 6,567 | 6,663 | 6,791 |
| | Independent | Joseph Hannigan | 7.0 | 3,850 | 4,064 | 4,082 | 4,120 | 4,185 | 4,253 | 5,397 | 6,114 | 7,464 | |
| | Fianna Fáil | Robert Briscoe | 6.9 | 3,791 | 5,883 | 5,921 | 5,937 | 5,951 | 6,024 | 6,273 | 6,382 | 6,473 | 6,544 |
| | Fine Gael | Myles Keogh | 6.8 | 3,760 | 3,837 | 3,848 | 3,876 | 4,287 | 4,329 | 4,722 | | | |
| | Fianna Fáil | Thomas Kelly | 6.6 | 3,619 | 5,852 | 5,868 | 5,886 | 5,902 | 5,995 | 6,442 | 6,614 | 6,684 | 6,806 |
| | Labour | Thomas Lawlor | 5.2 | 2,845 | 2,970 | 2,983 | 3,124 | 3,150 | 3,997 | | | | |
| | Labour | Eamonn Lynch | 2.0 | 1,076 | 1,292 | 1,298 | 1,445 | 1,456 | | | | | |
| | Fine Gael | Thomas O'Byrne | 1.4 | 765 | 779 | 784 | 801 | | | | | | |
| | Labour | Elizabeth O'Connor | 0.8 | 460 | 489 | 493 | | | | | | | |
| Electorate: 82,366 Valid: 55,082 Quota: 6,886 Turnout: 66.9% ||||||||||||||

### 1937 general election

1937 general election: Dublin South :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| | Fianna Fáil | Seán Lemass | 28.0 | 15,969 | | | | | | | | | | | |
| | Fine Gael | Peadar Doyle | 10.4 | 5,941 | 6,089 | 6,101 | 6,431 | 6,447 | 6,491 | 7,064 | 7,122 | 7,130 | | | |
| | Fine Gael | James Beckett | 8.1 | 4,623 | 4,665 | 4,677 | 4,785 | 4,793 | 4,802 | 5,205 | 5,218 | 5,223 | 5,225 | 5,498 | 5,587 |
| | Independent | Joseph Hannigan | 7.1 | 4,031 | 4,247 | 4,295 | 4,403 | 4,433 | 4,491 | 4,600 | 4,740 | 4,756 | 4,762 | 5,897 | 6,635 |
| | Fine Gael | Myles Keogh | 7.0 | 3,973 | 4,037 | 4,042 | 4,230 | 4,244 | 4,294 | 5,137 | 5,161 | 5,165 | 5,169 | 5,639 | 5,808 |
| | Labour | Thomas Lawlor | 6.8 | 3,872 | 4,088 | 4,301 | 4,330 | 4,387 | 5,703 | 5,743 | 5,857 | 5,878 | 5,889 | 6,459 | 7,206 |
| | Fianna Fáil | Robert Briscoe | 5.8 | 3,315 | 6,082 | 6,177 | 6,216 | 6,467 | 6,530 | 6,540 | 7,427 | | | | |
| | Fianna Fáil | Thomas Kelly | 4.9 | 2,815 | 5,613 | 5,704 | 5,730 | 6,086 | 6,175 | 6,187 | 7,283 | | | | |
| | Independent | Patrick Medlar | 4.3 | 2,474 | 2,670 | 2,705 | 2,735 | 2,818 | 2,895 | 3,016 | 3,106 | 3,119 | 3,126 | | |
| | Fianna Fáil | John McCann | 3.6 | 2,058 | 2,685 | 2,739 | 2,747 | 3,224 | 3,322 | 3,347 | 3,743 | 3,976 | 4,102 | 4,392 | |
| | Fine Gael | James McGuire | 3.5 | 2,000 | 2,022 | 2,037 | 2,143 | 2,149 | 2,174 | | | | | | |
| | Fianna Fáil | Denis Healy | 3.1 | 1,774 | 2,576 | 2,624 | 2,637 | 2,834 | 2,881 | 2,891 | | | | | |
| | Labour | John McCabe | 2.7 | 1,523 | 1,639 | 1,827 | 1,847 | 1,905 | | | | | | | |
| | Fine Gael | Michael Byrne | 1.8 | 999 | 1,020 | 1,027 | | | | | | | | | |
| | Independent | Frank Ryan | 1.5 | 875 | 914 | | | | | | | | | | |
| | Fianna Fáil | Ralph Lynch | 1.4 | 771 | 1,539 | 1,569 | 1,575 | | | | | | | | |
| Electorate: 82,659 Valid: 57,013 Quota: 7,127 Turnout: 69.0% ||||||||||||||||

### 1933 general election

1933 general election: Dublin South :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| | Fianna Fáil | Seán Lemass | 24.2 | 14,716 | | | | | | | |
| | Cumann na nGaedheal | James Beckett | 13.8 | 8,364 | | | | | | | |
| | Cumann na nGaedheal | James McGuire | 12.2 | 7,414 | 7,444 | 7,538 | 7,543 | 8,060 | | | |
| | Cumann na nGaedheal | Peadar Doyle | 9.7 | 5,920 | 5,973 | 6,348 | 6,359 | 7,015 | 7,175 | 7,293 | 7,415 |
| | Fianna Fáil | Robert Briscoe | 8.1 | 4,894 | 8,275 | | | | | | |
| | Fianna Fáil | Thomas Kelly | 8.0 | 4,831 | 6,614 | 6,620 | 6,889 | 6,961 | 6,967 | 8,939 | |
| | Fianna Fáil | James B. Lynch | 7.6 | 4,642 | 6,075 | 6,079 | 6,311 | 6,353 | 6,354 | 7,609 | |
| | Cumann na nGaedheal | Myles Keogh | 7.0 | 4,259 | 4,323 | 4,441 | 4,444 | 6,113 | 6,405 | 6,470 | 6,551 |
| | Fianna Fáil | Denis Healy | 4.8 | 2,888 | 3,219 | 3,230 | 3,383 | 3,444 | 3,449 | | |
| | Cumann na nGaedheal | Thomas Hennessy | 4.7 | 2,837 | 2,882 | 3,042 | 3,048 | | | | |
| Electorate: 81,224 Valid: 60,765 Quota: 7,596 Turnout: 74.8% ||||||||||||

### 1932 general election

1932 general election: Dublin South :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| | Fianna Fáil | Seán Lemass | 18.9 | 10,426 | | | | | | | | | | | |
| | Cumann na nGaedheal | James Beckett | 13.4 | 7,381 | | | | | | | | | | | |
| | Cumann na nGaedheal | Myles Keogh | 10.9 | 5,985 | 6,005 | 6,078 | 6,083 | 6,122 | 6,129 | 6,362 | 6,607 | 7,120 | | | |
| | Fianna Fáil | Robert Briscoe | 10.3 | 5,676 | 7,524 | | | | | | | | | | |
| | Cumann na nGaedheal | Peadar Doyle | 9.4 | 5,196 | 5,210 | 5,252 | 5,256 | 5,279 | 5,291 | 5,540 | 5,852 | 6,408 | 6,470 | 8,530 | |
| | Cumann na nGaedheal | Thomas Hennessy | 7.0 | 3,832 | 3,847 | 3,922 | 3,926 | 3,953 | 3,961 | 4,135 | 4,437 | 4,919 | 5,033 | 6,887 | |
| | Cumann na nGaedheal | Eugene Davy | 6.3 | 3,478 | 3,489 | 3,754 | 3,758 | 3,780 | 3,788 | 3,911 | 4,087 | 4,407 | 4,444 | | |
| | Fianna Fáil | James B. Lynch | 5.7 | 3,162 | 3,772 | 3,775 | 4,047 | 4,273 | 4,494 | 4,545 | 5,118 | 5,627 | 5,638 | 5,750 | 6,007 |
| | Independent | Patrick Medlar | 4.5 | 2,490 | 2,572 | 2,578 | 2,588 | 2,690 | 2,709 | 2,773 | 3,304 | | | | |
| | Fianna Fáil | Eoghan O'Rahilly | 4.4 | 2,440 | 3,056 | 3,058 | 3,262 | 3,445 | 4,176 | 4,240 | 4,553 | 5,079 | 5,091 | 5,198 | 5,311 |
| | Labour | Thomas Lawlor | 3.4 | 1,898 | 1,951 | 1,955 | 1,960 | 2,098 | 2,110 | 2,757 | | | | | |
| | Labour | Richard Hennessy | 2.8 | 1,536 | 1,554 | 1,578 | 1,586 | 1,634 | 1,638 | | | | | | |
| | Independent | James Larkin Jnr | 1.7 | 917 | 959 | 961 | 971 | | | | | | | | |
| | Fianna Fáil | Frank O'Donnell | 1.2 | 650 | 863 | 864 | 978 | 1,070 | | | | | | | |
| Electorate: 79,558 Valid: 55,067 Quota: 6,884 Turnout: 69.2% ||||||||||||||||

### September 1927 general election

September 1927 general election: Dublin South :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| | Fianna Fáil | Seán Lemass | 20.7 | 11,240 | | | | | | | | | |
| | Cumann na nGaedheal | Thomas Hennessy | 17.3 | 9,400 | | | | | | | | | |
| | Cumann na nGaedheal | James Beckett | 13.5 | 7,362 | | | | | | | | | |
| | Fianna Fáil | Robert Briscoe | 10.2 | 5,570 | 8,132 | | | | | | | | |
| | Cumann na nGaedheal | Peadar Doyle | 8.5 | 4,642 | 4,666 | 5,307 | 5,563 | 5,573 | 5,697 | 5,828 | 6,757 | 8,175 | |
| | Cumann na nGaedheal | Vincent Rice | 6.8 | 3,678 | 3,719 | 4,211 | 4,307 | 4,313 | 4,342 | 4,492 | | | |
| | Labour | Thomas Lawlor | 6.7 | 3,662 | 3,885 | 3,951 | 3,959 | 3,993 | 4,123 | 4,679 | 4,925 | 5,001 | 5,377 |
| | Cumann na nGaedheal | Myles Keogh | 6.5 | 3,522 | 3,573 | 4,900 | 5,048 | 5,048 | 5,152 | 5,397 | 8,308 | | |
| | Independent | John Lawlor | 5.3 | 2,857 | 3,070 | 3,106 | 3,112 | 3,166 | 3,371 | | | | |
| | Fianna Fáil | Frank Kerlin | 2.4 | 1,320 | 2,239 | 2,254 | 2,257 | 2,727 | 4,359 | 6,052 | 6,117 | 6,134 | 6,204 |
| | Fianna Fáil | Andrew Clarkin | 2.1 | 1,116 | 1,526 | 1,552 | 1,600 | 2,361 | | | | | |
| Electorate: 79,639 Valid: 54,369 Quota: 6,797 Turnout: 68.3% ||||||||||||||
* ↑ John Lawlor ran as an Independent Labour candidate he was president of the Workers' Union of Ireland and a member of Jim Larkin's, Irish Worker League.

### 1927 by-election

Following the death of Fianna Fáil TD Constance Markievicz, a by-election was held on 24 August 1927. The seat was won by the Cumann na nGaedheal candidate Thomas Hennessy.
1927 by-election: Dublin South :
| Party | Party | Candidate | FPv% | Count |
| Party | Party | Candidate | FPv% | 1 |
| | Cumann na nGaedheal | Thomas Hennessy | 55.0 | 24,139 |
| | Fianna Fáil | Robert Briscoe | 42.5 | 18,647 |
| | Sinn Féin | Cathal Ó Murchadha | 2.5 | 1,115 |
| Electorate: 81,136 Valid: 43,901 Quota: 21,951 Turnout: 54.1% |||||

### June 1927 general election

June 1927 general election: Dublin South :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| | Fianna Fáil | Seán Lemass | 16.1 | 8,547 | | | | | | | | | | | |
| | Cumann na nGaedheal | James Beckett | 15.5 | 8,183 | | | | | | | | | | | |
| | National League | Vincent Rice | 12.4 | 6,575 | 6,608 | 6,692 | | | | | | | | | |
| | Independent | Myles Keogh | 10.0 | 5,290 | 5,329 | 5,478 | 5,568 | 5,675 | 5,701 | 5,769 | 6,078 | 6,395 | 6,691 | | |
| | Cumann na nGaedheal | Peadar Doyle | 8.4 | 4,428 | 4,441 | 5,242 | 5,278 | 5,652 | 5,652 | 5,677 | 5,921 | 6,013 | 6,191 | 8,789 | |
| | Fianna Fáil | Constance Markievicz | 7.6 | 4,026 | 5,089 | 5,102 | 5,138 | 5,145 | 5,145 | 5,622 | 5,779 | 6,687 | | | |
| | Labour | Thomas Lawlor | 5.3 | 2,826 | 2,868 | 2,890 | 3,175 | 3,213 | 3,215 | 3,274 | 4,398 | 4,648 | 4,917 | 5,157 | 6,209 |
| | Cumann na nGaedheal | John O'Neill | 4.8 | 2,555 | 2,563 | 2,804 | 2,837 | 3,212 | 3,255 | 3,280 | 3,358 | 3,491 | 3,549 | | |
| | Sinn Féin | Cathal Ó Murchadha | 4.2 | 2,211 | 2,331 | 2,334 | 2,351 | 2,383 | 2,383 | 2,441 | 2,494 | 2,796 | 3,835 | 3,948 | 4,103 |
| | Independent | Michael O'Mullane | 4.0 | 2,121 | 2,233 | 2,240 | 2,302 | 2,323 | 2,323 | 2,364 | 2,436 | | | | |
| | Labour | Seán Campbell | 3.4 | 1,825 | 1,845 | 1,904 | 2,114 | 2,145 | 2,146 | 2,163 | | | | | |
| | Fianna Fáil | Robert Briscoe | 3.2 | 1,705 | 1,948 | 2,037 | 2,045 | 2,056 | 2,056 | 2,409 | 2,450 | 2,668 | | | |
| | Cumann na nGaedheal | Patrick Morgan | 1.7 | 921 | 933 | 1,017 | 1,032 | | | | | | | | |
| | Fianna Fáil | Denis Healy | 1.7 | 918 | 1,128 | 1,134 | 1,142 | 1,150 | 1,150 | | | | | | |
| | Labour | Thomas Nagle | 1.6 | 821 | 833 | 838 | | | | | | | | | |
| Electorate: 79,639 Valid: 52,952 Quota: 6,620 Turnout: 66.5% ||||||||||||||||

### 1925 by-election

Following the resignation of Cumann na nGaedheal TD Daniel McCarthy, a by-election was held on 11 March 1925. The seat was won by the Cumann na nGaedheal candidate Thomas Hennessy.
1925 by-election: Dublin South :
| Party | Party | Candidate | FPv% | Count |
| Party | Party | Candidate | FPv% | 1 |
| | Cumann na nGaedheal | Thomas Hennessy | 57.0 | 24,075 |
| | Republican | Michael O'Mullane | 32.9 | 13,900 |
| | Labour | Thomas Lawlor | 10.0 | 4,237 |
| Electorate: 78,353 Valid: 42,212 Quota: 21,107 Turnout: 53.9% |||||

### November 1924 by-election

Following the appointment of Cumann na nGaedheal TD Hugh Kennedy as Chief Justice, a by-election was held on 18 November 1924. The seat was won by the Republican candidate Seán Lemass.
November 1924 by-election: Dublin South :
| Party | Party | Candidate | FPv% | Count |
| Party | Party | Candidate | FPv% | 1 |
| | Republican | Seán Lemass | 51.4 | 17,297 |
| | Cumann na nGaedheal | Séamus Hughes | 48.6 | 16,340 |
| Electorate: 78,682 Valid: 33,637 Quota: 16,819 Turnout: 42.8% |||||

### March 1924 by-election

Following the death of Cumann na nGaedheal TD Philip Cosgrave, a by-election was held on 12 March 1924. The seat was won by the Cumann na nGaedheal candidate James O'Mara.
March 1924 by-election: Dublin South :
| Party | Party | Candidate | FPv% | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 |
| | Cumann na nGaedheal | James O'Mara | 49.0 | 15,884 | 17,193 |
| | Republican | Seán Lemass | 42.0 | 13,639 | 13,942 |
| | Independent | John O'Neill | 9.0 | 2,928 | |
| Electorate: 76,882 Valid: 32,451 Quota: 16,226 Turnout: 42.2% ||||||

### 1923 by-election

Michael Hayes was also elected for the National University constituency and resigned his seat in Dublin South following the election. A by-election was held on 25 October 1923.
1923 by-election: Dublin South :
| Party | Party | Candidate | FPv% | Count |
| Party | Party | Candidate | FPv% | 1 |
| | Cumann na nGaedheal | Hugh Kennedy | 67.3 | 23,676 |
| | Republican | Michael O'Mullane | 32.7 | 11,502 |
| Electorate: 78,017 Valid: 35,178 Quota: 17,590 Turnout: 45.1% |||||

### 1923 general election

1923 general election: Dublin South :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 |
| | Cumann na nGaedheal | Philip Cosgrave | 34.7 | 16,011 | | | | | | | | | | | | | | | | | | |
| | Republican | Constance Markievicz | 12.6 | 5,832 | | | | | | | | | | | | | | | | | | |
| | Cumann na nGaedheal | Daniel McCarthy | 9.9 | 4,565 | 6,596 | | | | | | | | | | | | | | | | | |
| | Independent | Myles Keogh | 6.5 | 3,010 | 3,787 | 3,789 | 3,854 | 3,907 | 3,907 | 3,942 | 3,997 | 4,033 | 4,164 | 4,185 | 4,415 | 4,581 | 4,861 | 5,321 | 5,840 | | | |
| | Cumann na nGaedheal | Michael Hayes | 6.0 | 2,778 | 4,605 | 4,606 | 4,930 | 4,986 | 4,987 | 5,001 | 5,100 | 5,118 | 5,312 | 5,322 | 5,565 | 6,406 | | | | | | |
| | Independent | Andrew Beattie | 5.3 | 2,451 | 2,691 | 2,691 | 2,699 | 2,746 | 2,746 | 2,748 | 2,782 | 2,868 | 2,943 | 2,949 | 2,982 | 3,012 | 3,088 | 3,167 | 3,772 | 3,827 | 3,958 | 4,010 |
| | Republican | Cathal Ó Murchadha | 4.1 | 1,893 | 1,911 | 1,940 | 1,942 | 1,964 | 1,964 | 1,980 | 1,988 | 1,989 | 2,000 | 2,239 | 2,312 | 2,328 | 2,339 | 2,431 | 2,482 | 2,486 | 2,800 | 4,500 |
| | Cumann na nGaedheal | Peadar Doyle | 3.1 | 1,409 | 5,563 | 5,565 | 5,761 | 5,772 | | | | | | | | | | | | | | |
| | Republican | Michael O'Mullane | 2.9 | 1,315 | 1,320 | 1,332 | 1,333 | 1,339 | 1,339 | 1,355 | 1,358 | 1,360 | 1,388 | 1,807 | 1,886 | 1,892 | 1,896 | 2,000 | 2,025 | 2,027 | 2,229 | |
| | Labour | William O'Brien | 2.0 | 933 | 1,030 | 1,031 | 1,046 | 1,055 | 1,055 | 1,067 | 1,075 | 1,080 | 1,125 | 1,136 | | | | | | | | |
| | Independent | Patrick Medlar | 1.8 | 832 | 1,060 | 1,062 | 1,109 | 1,120 | 1,120 | 1,145 | 1,205 | 1,212 | 1,292 | 1,314 | 1,404 | 1,440 | 1,491 | | | | | |
| | Dublin Trades Council | John Farrelly | 1.8 | 808 | 1,004 | 1,008 | 1,014 | 1,018 | 1,018 | 1,264 | 1,386 | 1,389 | 1,408 | 1,425 | 1,547 | 1,574 | 1,599 | 1,767 | 1,808 | 1,816 | | |
| | Independent | William McCabe | 1.7 | 793 | 933 | 933 | 956 | 987 | 987 | 991 | 1,004 | 1,337 | 1,392 | 1,398 | 1,472 | 1,517 | 1,585 | 1,700 | | | | |
| | Cumann na nGaedheal | George Lyons | 1.6 | 717 | 976 | 976 | 1,087 | 1,091 | 1,091 | 1,096 | 1,113 | 1,117 | 1,153 | 1,156 | 1,239 | | | | | | | |
| | Republican | Edward O'Kelly | 1.5 | 709 | 721 | 728 | 730 | 732 | 732 | 741 | 748 | 753 | 771 | | | | | | | | | |
| | Independent | Bernard Shields | 1.3 | 582 | 667 | 667 | 677 | 682 | 682 | 706 | 717 | 742 | | | | | | | | | | |
| | Independent | James Shanks | 1.1 | 484 | 512 | 512 | 514 | 525 | 525 | 531 | 535 | | | | | | | | | | | |
| | Dublin Trades Council | Edward Tucker | 0.9 | 391 | 425 | 425 | 430 | 430 | 430 | | | | | | | | | | | | | |
| | Independent | Laurence Byrne | 0.8 | 385 | 473 | 473 | 478 | 483 | 483 | 487 | | | | | | | | | | | | |
| | Independent | Patrick Munden | 0.6 | 265 | 286 | 287 | 290 | | | | | | | | | | | | | | | |
| Electorate: 78,017 Valid: 46,163 Quota: 5,771 Turnout: 59.2% |||||||||||||||||||||||

### 1922 general election

Kenneth Reddin, an election agent, published a sample ballot incorrectly stating that voters had only six preferences. Markievicz secured an injunction in the Republican Supreme Court against Reddin, who published an apology on election day in The Irish Times. The official notice of poll listed Markievicz's name first, but the ballot (and Reddin's sample) listed her third. She later complained that the electoral register was "rotten".
1922 general election: Dublin South :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 |
| | Sinn Féin (Pro-Treaty) | Daniel McCarthy | 21.1 | 5,540 | | | | |
| | Labour | William O'Brien | 18.0 | 4,734 | 4,764 | 4,890 | 5,091 | 5,543 |
| | Independent | Myles Keogh | 16.6 | 4,363 | 4,403 | 4,489 | 6,236 | |
| | Sinn Féin (Pro-Treaty) | Thomas Kelly | 16.5 | 4,344 | 4,488 | 4,885 | 5,012 | 5,525 |
| | Sinn Féin (Anti-Treaty) | Constance Markievicz | 15.0 | 3,951 | 3,971 | 4,663 | 4,675 | 4,684 |
| | Independent | Sir John O'Connell | 7.9 | 2,068 | 2,079 | 2,106 | | |
| | Sinn Féin (Anti-Treaty) | Cathal Ó Murchadha | 5.0 | 1,308 | 1,341 | | | |
| Electorate: 41,466 Valid: 26,308 Quota: 5,262 Turnout: 63.4% |||||||||

### 1921 general election

1921 general election: Dublin South :
| Party | Candidate | 1st Pref | % | Seat |
| Sinn Féin | Thomas Kelly | Unopposed | N/A | 1 |
| Sinn Féin | Daniel McCarthy | Unopposed | N/A | 2 |
| Sinn Féin | Constance Markievicz | Unopposed | N/A | 3 |
| Sinn Féin | Cathal Ó Murchadha | Unopposed | N/A | 4 |