# Roscommon (Dáil constituency)

Roscommon was a parliamentary constituency represented in Dáil Éireann, the lower house of the Irish parliament or Oireachtas from 1923 to 1969 and from 1981 to 1992. The method of election was proportional representation by means of the single transferable vote (PR-STV).

## History and boundaries

The constituency has had two separate periods of existence:
* from the 1923 general election until its abolition at the 1969 general election, when it was amalgamated into the Roscommon–Leitrim constituency, which in turn existed until the 1981 general election. At different periods it returned 4, 3 or 4 TDs. It comprised the administrative county of Roscommon.
* as a 3-seat constituency from the 1981 general election until its abolition at the 1992 general election to be replaced by the 4-seat constituency of Longford–Roscommon. It comprised the administrative county of Roscommon; and, in the administrative county of Galway, the district electoral divisions of: Ballinastack, Ballymoe, Ballynakill, Boyounagh, Creggs, Island, Kilcroan, Templetogher, Toberroe, in the former Rural District of Glennamaddy.
For the 2007 general election, the county was represented by the new Roscommon–South Leitrim constituency.

## TDs
### TDs 1923–1969

Teachtaí Dála (TDs) for Roscommon 1923–1969 :
| Key to parties  CnaP = Clann na Poblachta  CnaT = Clann na Talmhan  CnaG = Cumann na nGaedheal  FF = Fianna Fáil  FG = Fine Gael  Ind = Independent  Lab = Labour  NCP = National Centre Party  NPD = National Progressive Democrats  Rep = Republican ||||||||||
| Dáil | Election | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) |
| 4th | 1923 | | George Noble Plunkett (Rep) | | Henry Finlay (CnaG) | | Gerald Boland (Rep) | | Andrew Lavin (CnaG) |
| 4th | 1925 by-election | | George Noble Plunkett (Rep) | | Martin Conlon (CnaG) | | Gerald Boland (Rep) | | Andrew Lavin (CnaG) |
| 5th | 1927 (Jun) | | Patrick O'Dowd (FF) | | Martin Conlon (CnaG) | | Gerald Boland (FF) | | Michael Brennan (Ind) |
| 6th | 1927 (Sep) | | Patrick O'Dowd (FF) | | Martin Conlon (CnaG) | | Gerald Boland (FF) | | Michael Brennan (Ind) |
| 7th | 1932 | | Daniel O'Rourke (FF) | | Martin Conlon (CnaG) | | Gerald Boland (FF) | | Frank MacDermot (NCP) |
| 8th | 1933 | | Patrick O'Dowd (FF) | | Michael Brennan (CnaG) | | Gerald Boland (FF) | | Frank MacDermot (NCP) |
| 9th | 1937 | | Michael Brennan (FG) | | Daniel O'Rourke (FF) | | Gerald Boland (FF) | 3 seats 1937–1948 | 3 seats 1937–1948 |
| 10th | 1938 | | Michael Brennan (FG) | | Daniel O'Rourke (FF) | | Gerald Boland (FF) | 3 seats 1937–1948 | 3 seats 1937–1948 |
| 11th | 1943 | | John Meighan (CnaT) | | John Beirne (CnaT) | | Gerald Boland (FF) | 3 seats 1937–1948 | 3 seats 1937–1948 |
| 12th | 1944 | | Daniel O'Rourke (FF) | | John Beirne (CnaT) | | Gerald Boland (FF) | 3 seats 1937–1948 | 3 seats 1937–1948 |
| 13th | 1948 | | Daniel O'Rourke (FF) | | John Beirne (CnaT) | | Gerald Boland (FF) | | Jack McQuillan (CnaP) |
| 14th | 1951 | | John Finan (CnaT) | | John Beirne (CnaT) | | Gerald Boland (FF) | | Jack McQuillan (Ind) |
| 15th | 1954 | | James Burke (FG) | | John Beirne (CnaT) | | Gerald Boland (FF) | | Jack McQuillan (Ind) |
| 16th | 1957 | | James Burke (FG) | | John Beirne (CnaT) | | Gerald Boland (FF) | | Jack McQuillan (Ind) |
| 17th | 1961 | | James Burke (FG) | | Patrick J. Reynolds (FG) | | Brian Lenihan Snr (FF) | | Jack McQuillan (NPD) |
| 17th | 1964 by-election | | Joan Burke (FG) | | Patrick J. Reynolds (FG) | | Brian Lenihan Snr (FF) | | Jack McQuillan (NPD) |
| 18th | 1965 | | Joan Burke (FG) | | Patrick J. Reynolds (FG) | | Brian Lenihan Snr (FF) | | Hugh Gibbons (FF) |
| 19th | 1969 | Constituency abolished. See Roscommon–Leitrim | Constituency abolished. See Roscommon–Leitrim | Constituency abolished. See Roscommon–Leitrim | Constituency abolished. See Roscommon–Leitrim | Constituency abolished. See Roscommon–Leitrim | Constituency abolished. See Roscommon–Leitrim | Constituency abolished. See Roscommon–Leitrim | Constituency abolished. See Roscommon–Leitrim |
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 1981–1992

Teachtaí Dála (TDs) for Roscommon 1981–1992 :
| Key to parties  FF = Fianna Fáil  FG = Fine Gael  Ind = Independent ||||||||
| Dáil | Election | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) |
| 22nd | 1981 | | Terry Leyden (FF) | | Seán Doherty (FF) | | John Connor (FG) |
| 23rd | 1982 (Feb) | | Terry Leyden (FF) | | Seán Doherty (FF) | | Liam Naughten (FG) |
| 24th | 1982 (Nov) | | Terry Leyden (FF) | | Seán Doherty (FF) | | Liam Naughten (FG) |
| 25th | 1987 | | Terry Leyden (FF) | | Seán Doherty (FF) | | Liam Naughten (FG) |
| 26th | 1989 | | Terry Leyden (FF) | | Tom Foxe (Ind) | | John Connor (FG) |
| 27th | 1992 | Constituency abolished. See Longford–Roscommon | Constituency abolished. See Longford–Roscommon | Constituency abolished. See Longford–Roscommon | Constituency abolished. See Longford–Roscommon | Constituency abolished. See Longford–Roscommon | Constituency abolished. See Longford–Roscommon |
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
### 1989 general election

1989 general election: Roscommon :
| Party | Party | Candidate | FPv% | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 |
| | Fine Gael | John Connor | 22.1 | 6,823 | 7,306 | 7,749 |
| | Independent | Tom Foxe | 22.1 | 6,811 | 7,521 | 8,400 |
| | Fianna Fáil | Terry Leyden | 20.8 | 6,424 | 10,228 | |
| | Fine Gael | Liam Naughten | 17.6 | 5,435 | 5,639 | 6,196 |
| | Fianna Fáil | Seán Doherty | 17.1 | 5,281 | | |
| | Independent | Andrew Kerrigan | 0.4 | 119 | | |
| Electorate: 40,447 Valid: 30,893 Quota: 7,724 Turnout: 76.4% |||||||

### 1987 general election

1987 general election: Roscommon :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 |
| | Fianna Fáil | Seán Doherty | 27.6 | 8,944 | | | |
| | Fianna Fáil | Terry Leyden | 22.4 | 7,257 | 8,812 | | |
| | Fine Gael | John Connor | 19.0 | 6,144 | 7,163 | 7,625 | 7,876 |
| | Fine Gael | Liam Naughten | 18.4 | 5,949 | 7,047 | 7,438 | 7,894 |
| | Independent | Eithne Quinn | 12.6 | 4,067 | | | |
| Electorate: 41,515 Valid: 32,361 Quota: 8,091 Turnout: 77.9% ||||||||

### November 1982 general election

November 1982 general election: Roscommon :
| Party | Party | Candidate | FPv% | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 |
| | Fianna Fáil | Seán Doherty | 28.5 | 9,362 | | |
| | Fianna Fáil | Terry Leyden | 24.8 | 8,121 | 8,342 | |
| | Fine Gael | Liam Naughten | 22.4 | 7,338 | 8,072 | 8,646 |
| | Fine Gael | John Connor | 15.8 | 5,177 | 6,976 | 7,562 |
| | Fine Gael | Thomas Callan | 8.6 | 2,806 | | |
| Electorate: 40,664 Valid: 32,804 Quota: 8,202 Turnout: 80.7% |||||||

### February 1982 general election

February 1982 general election: Roscommon :
| Party | Party | Candidate | FPv% | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 |
| | Fianna Fáil | Seán Doherty | 28.1 | 8,936 | | |
| | Fianna Fáil | Terry Leyden | 26.6 | 8,450 | | |
| | Fine Gael | Liam Naughten | 23.6 | 7,502 | 7,940 | 8,311 |
| | Fine Gael | John Connor | 21.7 | 6,897 | 7,448 | 7,580 |
| Electorate: 40,249 Valid: 31,785 Quota: 7,947 Turnout: 79.0% |||||||

### 1981 general election

1981 general election: Roscommon :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| | Fianna Fáil | Seán Doherty | 26.9 | 8,918 | | | | | | |
| | Fianna Fáil | Terry Leyden | 21.4 | 7,095 | 7,590 | 7,862 | 8,583 | | | |
| | Fine Gael | Liam Naughten | 14.6 | 4,845 | 4,852 | 4,886 | 4,956 | 5,837 | 7,168 | 7,214 |
| | Fine Gael | John Connor | 14.2 | 4,717 | 4,739 | 4,906 | 5,232 | 5,341 | 7,430 | 7,589 |
| | Fine Gael | Charles Duignan | 10.6 | 3,505 | 3,557 | 3,640 | 3,751 | 3,853 | | |
| | Independent | Patrick Lenihan | 5.3 | 1,771 | 1,793 | 1,832 | 2,165 | | | |
| | Independent | Patrick Moylan | 4.7 | 1,569 | 1,583 | 1,684 | | | | |
| | Independent | Tom McGarry | 1.9 | 633 | 648 | | | | | |
| | Independent | Patrick Greaney | 0.3 | 100 | 102 | | | | | |
| Electorate: 40,249 Valid: 33,153 Quota: 8,289 Turnout: 82.4% |||||||||||

### 1965 general election

1965 general election: Roscommon :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 |
| | Fine Gael | Joan Burke | 26.9 | 9,467 | | | | |
| | Fianna Fáil | Brian Lenihan Snr | 21.7 | 7,616 | | | | |
| | Fine Gael | Patrick J. Reynolds | 13.9 | 4,870 | 5,438 | 5,449 | 7,124 | |
| | Labour | Jack McQuillan | 12.7 | 4,449 | 4,806 | 4,870 | 5,383 | 5,749 |
| | Fianna Fáil | Hugh Gibbons | 11.0 | 3,882 | 3,980 | 4,406 | 4,497 | 7,542 |
| | Fianna Fáil | Willie Farrell | 10.4 | 3,659 | 3,705 | 3,774 | 3,971 | |
| | Fine Gael | Michael Fallon | 3.5 | 1,217 | 2,582 | 2,595 | | |
| Electorate: 44,635 Valid: 35,160 Quota: 7,033 Turnout: 78.8% |||||||||

### 1964 by-election

Following the death of Fine Gael TD James Burke, a by-election was held on 8 July 1964. The seat was won by the Fine Gael candidate Joan Burke, widow of the deceased TD.
1964 by-election: Roscommon :
| Party | Party | Candidate | FPv% | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 |
| | Fine Gael | Joan Burke | 49.7 | 17,308 | 18,754 |
| | Fianna Fáil | Hugh Gibbons | 43.4 | 15,107 | 15,673 |
| | Labour | Oliver Macklin | 5.9 | 2,056 | |
| | Sinn Féin | Pádraig Ó Ceallaigh | 1.0 | 352 | |
| Electorate: 44,635 Valid: 34,823 Quota: 17,412 Turnout: 78.02% ||||||

### 1961 general election

1961 general election: Roscommon :
| 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 |
| | National Progressive Democrats | Jack McQuillan | 15.1 | 5,289 | 5,327 | 5,535 | 5,705 | 6,352 | 7,011 | | | |
| | Fianna Fáil | Brian Lenihan Snr | 13.9 | 4,873 | 4,884 | 4,942 | 4,988 | 5,090 | 5,229 | 5,791 | 6,073 | 6,197 |
| | Fine Gael | James Burke | 13.6 | 4,753 | 4,763 | 4,800 | 5,225 | 5,513 | 5,682 | 5,709 | 7,812 | |
| | Fine Gael | Patrick J. Reynolds | 10.7 | 3,754 | 4,119 | 4,226 | 4,433 | 4,525 | 4,957 | 5,890 | 6,335 | 6,975 |
| | Fianna Fáil | Gerald Boland | 10.4 | 3,634 | 3,645 | 3,679 | 3,739 | 3,864 | 4,096 | 4,838 | 5,298 | 5,346 |
| | Clann na Talmhan | John Beirne | 9.2 | 3,211 | 3,225 | 3,322 | 3,564 | 3,843 | 4,410 | 4,486 | | |
| | Fianna Fáil | Peter Charles | 6.7 | 2,331 | 2,602 | 2,685 | 2,699 | 2,724 | 2,844 | | | |
| | Independent | James Doherty | 5.6 | 1,975 | 2,097 | 2,335 | 2,612 | 2,683 | | | | |
| | Clann na Poblachta | Peter McGuinness | 4.6 | 1,603 | 1,616 | 1,767 | 1,779 | | | | | |
| | Fine Gael | Rose Shannon | 4.2 | 1,467 | 1,472 | 1,483 | | | | | | |
| | Sinn Féin | Sylvester Fitzsimons | 3.3 | 1,138 | 1,200 | | | | | | | |
| | Independent | Richard Ellis | 2.8 | 968 | | | | | | | | |
| Electorate: 45,369 Valid: 34,996 Quota: 7,000 Turnout: 77.1% |||||||||||||

### 1957 general election

1957 general election: Roscommon :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| | Clann na Talmhan | John Beirne | 13.8 | 4,222 | 4,327 | 4,515 | 4,640 | 5,810 | 5,899 | 6,405 | |
| | Independent | Jack McQuillan | 13.3 | 4,075 | 4,116 | 4,285 | 4,589 | 4,836 | 5,023 | 6,562 | |
| | Fine Gael | James Burke | 12.8 | 3,914 | 3,937 | 4,024 | 4,251 | 4,775 | 4,881 | 5,162 | 5,408 |
| | Fianna Fáil | Brian Lenihan Snr | 11.1 | 3,393 | 3,400 | 3,712 | 3,783 | 3,852 | 4,410 | 4,843 | 5,032 |
| | Fianna Fáil | Gerald Boland | 10.7 | 3,288 | 3,350 | 4,040 | 4,092 | 4,129 | 6,150 | | |
| | Fianna Fáil | Daniel O'Rourke | 9.2 | 2,805 | 2,833 | 3,054 | 3,222 | 3,357 | | | |
| | Sinn Féin | Seán Scott | 8.9 | 2,741 | 2,894 | 3,007 | 3,238 | 3,379 | 3,517 | | |
| | Clann na Talmhan | Paddy Concannon | 6.7 | 2,043 | 2,054 | 2,067 | 2,505 | | | | |
| | Fianna Fáil | Walter McGuire | 5.9 | 1,813 | 1,834 | | | | | | |
| | Labour | James Connaughton | 5.7 | 1,756 | 1,872 | 1,879 | | | | | |
| | Labour | James Regan | 1.9 | 583 | | | | | | | |
| Electorate: 41,131 Valid: 30,633 Quota: 6,127 Turnout: 74.5% ||||||||||||

### 1954 general election

1954 general election: Roscommon :
| 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 | Gerald Boland | 16.4 | 5,456 | 5,470 | 5,542 | 5,579 | 7,190 | | | | |
| | Clann na Talmhan | John Beirne | 14.7 | 4,894 | 4,912 | 4,999 | 5,424 | 5,862 | 5,889 | 8,745 | | |
| | Independent | Jack McQuillan | 14.3 | 4,756 | 4,800 | 5,081 | 5,236 | 5,518 | 5,542 | 5,916 | 6,284 | 6,734 |
| | Fine Gael | James Burke | 13.7 | 4,549 | 4,589 | 4,777 | 5,026 | 5,124 | 5,135 | 6,077 | 7,756 | |
| | Clann na Talmhan | John Finan | 13.1 | 4,337 | 4,380 | 4,425 | 4,541 | 4,577 | 4,583 | | | |
| | Fianna Fáil | Daniel O'Rourke | 10.9 | 3,629 | 3,637 | 3,698 | 3,728 | 4,700 | 5,181 | 5,362 | 5,419 | 5,446 |
| | Fianna Fáil | Peter Lynch | 10.4 | 3,447 | 3,459 | 3,506 | 3,552 | | | | | |
| | Clann na Poblachta | John Scott | 2.7 | 901 | 1,041 | 1,140 | | | | | | |
| | Labour | Andrew Treacy | 2.7 | 894 | 906 | | | | | | | |
| | Clann na Poblachta | Michael Garvey | 1.0 | 339 | | | | | | | | |
| Electorate: 42,470 Valid: 33,202 Quota: 6,641 Turnout: 78.2% |||||||||||||

### 1951 general election

1951 general election: Roscommon :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| | Clann na Talmhan | John Beirne | 18.4 | 6,269 | 6,796 | 7,683 | | | | |
| | Fianna Fáil | Gerald Boland | 14.6 | 4,980 | 5,072 | 5,180 | 5,202 | 6,655 | 6,786 | 6,831 |
| | Fianna Fáil | Daniel O'Rourke | 13.8 | 4,710 | 4,732 | 4,828 | 4,843 | 5,946 | 6,090 | 6,129 |
| | Clann na Talmhan | John Finan | 12.9 | 4,408 | 4,558 | 5,320 | 5,746 | 5,771 | 7,556 | |
| | Independent | Jack McQuillan | 10.8 | 3,666 | 3,772 | 4,290 | 4,400 | 4,748 | 5,768 | 6,298 |
| | Fianna Fáil | John J. Smyth | 8.9 | 3,036 | 3,045 | 3,083 | 3,092 | | | |
| | Clann na Poblachta | Michael Kelly | 8.1 | 2,751 | 2,962 | | | | | |
| | Fine Gael | Michael Brennan | 7.5 | 2,551 | 3,101 | 3,546 | 3,725 | 3,802 | | |
| | Fine Gael | Patrick J. Flynn | 5.0 | 1,691 | | | | | | |
| Electorate: 44,017 Valid: 34,062 Quota: 6,813 Turnout: 77.38% |||||||||||

### 1948 general election

1948 general election: Roscommon :
| 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 | Gerald Boland | 21.5 | 7,581 | | | | | | | |
| | Fianna Fáil | Daniel O'Rourke | 13.7 | 4,841 | 5,039 | 5,065 | 5,101 | 5,131 | 5,178 | 5,340 | 7,948 |
| | Clann na Talmhan | John Beirne | 12.7 | 4,470 | 4,484 | 4,549 | 4,987 | 5,416 | 5,514 | 6,135 | 6,774 |
| | Fianna Fáil | Peter Lynch | 10.3 | 3,633 | 3,846 | 3,857 | 3,890 | 3,918 | 3,999 | 4,124 | |
| | Clann na Talmhan | John Finan | 10.2 | 3,604 | 3,609 | 3,671 | 3,892 | 4,095 | 4,254 | 4,647 | 4,679 |
| | Clann na Poblachta | Jack McQuillan | 8.6 | 3,025 | 3,041 | 3,087 | 3,252 | 3,449 | 5,814 | 6,862 | 7,277 |
| | Clann na Poblachta | Michael Kelly | 7.5 | 2,660 | 2,670 | 2,698 | 2,731 | 2,861 | | | |
| | Independent | Michael Brennan | 6.7 | 2,370 | 2,405 | 2,490 | 2,777 | 3,138 | 3,177 | | |
| | Fine Gael | Martin Conlon | 3.6 | 1,255 | 1,263 | 1,511 | 1,555 | | | | |
| | Clann na Talmhan | Matthew Davis | 3.4 | 1,216 | 1,232 | 1,301 | | | | | |
| | Fine Gael | Peter Farrell | 1.9 | 655 | 659 | | | | | | |
| Electorate: 46,197 Valid: 35,310 Quota: 7,062 Turnout: 76.43% ||||||||||||

### 1944 general election

1944 general election: Roscommon :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 |
| | Fianna Fáil | Gerald Boland | 25.5 | 7,800 | | | |
| | Fianna Fáil | Daniel O'Rourke | 23.0 | 7,044 | 7,358 | 7,493 | 7,874 |
| | Clann na Talmhan | John Beirne | 17.5 | 5,359 | 5,521 | 6,349 | 7,213 |
| | Clann na Talmhan | John Meighan | 15.1 | 4,629 | 4,920 | 5,836 | 6,583 |
| | Fine Gael | Michael Brennan | 7.8 | 2,394 | 2,505 | 2,811 | |
| | Clann na Talmhan | Patrick Farrell | 7.1 | 2,189 | 2,294 | | |
| | Ailtirí na hAiséirghe | Joseph O'Kelly | 4.0 | 1,217 | | | |
| Electorate: 41,518 Valid: 30,632 Quota: 7,659 Turnout: 73.8% ||||||||

### 1943 general election

1943 general election: Roscommon :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 |
| | Fianna Fáil | Gerald Boland | 22.2 | 7,091 | 7,186 | 7,784 | 8,423 | |
| | Fianna Fáil | Daniel O'Rourke | 20.4 | 6,522 | 6,562 | 6,860 | 7,098 | 7,296 |
| | Clann na Talmhan | John Meighan | 16.0 | 5,122 | 6,194 | 6,722 | 7,651 | 7,686 |
| | Clann na Talmhan | John Beirne | 15.4 | 4,903 | 5,345 | 5,903 | 7,234 | 7,352 |
| | Fine Gael | Michael Brennan | 10.2 | 3,261 | 3,416 | 4,141 | | |
| | Labour | John Doran | 9.8 | 3,132 | 3,205 | | | |
| | Clann na Talmhan | Thomas O'Donnell | 6.0 | 1,902 | | | | |
| Electorate: 41,518 Valid: 31,933 Quota: 7,984 Turnout: 76.9% |||||||||

### 1938 general election

1938 general election: Roscommon :
| Party | Party | Candidate | FPv% | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 |
| | Fianna Fáil | Gerald Boland | 33.8 | 10,719 | |
| | Fianna Fáil | Daniel O'Rourke | 26.0 | 8,223 | |
| | Fine Gael | Michael Brennan | 20.7 | 6,547 | 7,800 |
| | Fine Gael | Dudley Costello | 19.6 | 6,200 | 6,636 |
| Electorate: 41,620 Valid: 31,689 Quota: 7,923 Turnout: 76.1% ||||||

### 1937 general election

1937 general election: Roscommon :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 |
| | Fianna Fáil | Gerald Boland | 28.4 | 8,925 | | | |
| | Fine Gael | Michael Brennan | 26.4 | 8,295 | | | |
| | Fianna Fáil | Daniel O'Rourke | 18.4 | 5,774 | 6,638 | 6,647 | 8,387 |
| | Fine Gael | Dudley Costello | 15.3 | 4,806 | 4,850 | 5,266 | 5,822 |
| | Independent | Patrick O'Dowd | 11.5 | 3,599 | 3,766 | 3,786 | |
| Electorate: 42,103 Valid: 31,399 Quota: 7,850 Turnout: 74.6% ||||||||

### 1933 general election

1933 general election: Roscommon :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 |
| | Fianna Fáil | Gerald Boland | 20.8 | 8,246 | | | | |
| | Fianna Fáil | Patrick O'Dowd | 20.6 | 8,160 | | | | |
| | National Centre Party | Frank MacDermot | 19.4 | 7,703 | 7,712 | 7,716 | 8,975 | |
| | Fianna Fáil | Daniel O'Rourke | 18.1 | 7,190 | 7,475 | 7,697 | 7,748 | 7,780 |
| | Cumann na nGaedheal | Michael Brennan | 11.5 | 4,568 | 4,585 | 4,586 | 6,990 | 8,003 |
| | Cumann na nGaedheal | Martin Conlon | 9.5 | 3,781 | 3,786 | 3,789 | | |
| Electorate: 48,958 Valid: 39,648 Quota: 7,930 Turnout: 81.0% |||||||||

### 1932 general election

Details of the fifth count are not available. Gallagher notes it is unclear as to why the returning officer proceeded with the elimination of O'Dowd on the final count.
1932 general election: Roscommon :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 |
| | Fianna Fáil | Daniel O'Rourke | 18.7 | 6,606 | 6,723 | 6,779 | 6,821 | N/A | 10,289 |
| | Fianna Fáil | Patrick O'Dowd | 17.9 | 6,314 | 6,353 | 6,421 | 6,521 | N/A | |
| | Fianna Fáil | Gerald Boland | 17.5 | 6,189 | 6,230 | 6,486 | 6,604 | N/A | 9,237 |
| | Cumann na nGaedheal | Martin Conlon | 13.3 | 4,715 | 6,116 | 9,777 | | | |
| | Independent | Frank MacDermot | 12.9 | 4,560 | 5,050 | 5,667 | 7,490 | | |
| | Cumann na nGaedheal | Michael Brennan | 11.5 | 4,077 | 4,817 | | | | |
| | Cumann na nGaedheal | Michael Grogan | 8.2 | 2,897 | | | | | |
| Electorate: 48,403 Valid: 35,358 Quota: 7,072 Turnout: 73.1% ||||||||||

### September 1927 general election

September 1927 general election: Roscommon :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| | Fianna Fáil | Gerald Boland | 16.3 | 5,417 | 5,496 | 5,520 | 5,521 | 5,945 | 8,108 | |
| | Fianna Fáil | Patrick O'Dowd | 15.9 | 5,289 | 5,479 | 5,569 | 5,571 | 5,754 | 6,933 | |
| | Cumann na nGaedheal | Martin Conlon | 14.9 | 4,959 | 5,126 | 6,883 | | | | |
| | Independent | Michael Brennan | 11.6 | 3,844 | 4,593 | 4,742 | 4,763 | 5,528 | 5,615 | 5,736 |
| | Fianna Fáil | Daniel O'Rourke | 10.3 | 3,424 | 3,472 | 3,497 | 3,499 | 3,616 | | |
| | Cumann na nGaedheal | Joseph Burke | 9.2 | 3,050 | 3,180 | 3,445 | 3,652 | 4,844 | 4,903 | 4,947 |
| | Independent | John Doran | 9.0 | 2,987 | 3,146 | 3,267 | 3,278 | | | |
| | Cumann na nGaedheal | Andrew Lavin | 7.0 | 2,326 | 2,522 | | | | | |
| | Independent | John Keaveney | 5.7 | 1,895 | | | | | | |
| Electorate: 50,586 Valid: 33,191 Quota: 6,639 Turnout: 65.6% |||||||||||

### June 1927 general election

June 1927 general election: Roscommon :
| 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 | Gerald Boland | 18.0 | 5,615 | 5,641 | 6,306 | | | | | | | |
| | Independent | Michael Brennan | 13.3 | 4,151 | 4,270 | 4,317 | 4,319 | 4,367 | 5,099 | 5,300 | 5,878 | 7,503 | |
| | Cumann na nGaedheal | Martin Conlon | 12.0 | 3,734 | 3,969 | 3,974 | 3,975 | 3,989 | 4,133 | 5,374 | 5,769 | 6,099 | 6,302 |
| | Fianna Fáil | Patrick O'Dowd | 9.6 | 3,000 | 3,027 | 3,257 | 3,328 | 4,520 | 4,606 | 4,666 | 5,114 | 5,406 | 5,492 |
| | Independent | John Keaveney | 8.0 | 2,500 | 2,652 | 2,672 | 2,672 | 2,717 | 2,803 | 2,964 | 3,281 | | |
| | Cumann na nGaedheal | John Doran | 7.5 | 2,341 | 2,432 | 2,445 | 2,446 | 2,472 | 2,611 | 2,934 | 3,417 | 3,627 | 3,725 |
| | Labour | Thomas Larkin | 7.3 | 2,256 | 2,326 | 2,353 | 2,355 | 2,434 | 2,751 | 2,887 | | | |
| | Cumann na nGaedheal | Andrew Lavin | 6.3 | 1,963 | 2,194 | 2,208 | 2,208 | 2,232 | 2,351 | | | | |
| | Independent | Michael Killian | 5.9 | 1,834 | 1,847 | 1,877 | 1,878 | 1,902 | | | | | |
| | Sinn Féin | George Noble Plunkett | 5.1 | 1,575 | 1,584 | 1,603 | 1,609 | | | | | | |
| | Fianna Fáil | Séamus Duffy | 3.6 | 1,108 | 1,114 | | | | | | | | |
| | Cumann na nGaedheal | James Flanagan | 3.3 | 1,032 | | | | | | | | | |
| Electorate: 50,586 Valid: 31,109 Quota: 6,222 Turnout: 61.5% ||||||||||||||

### 1925 by-election

Following the resignation of Cumann na nGaedheal TD Henry Finlay, a by-election was held on 11 March 1925. The seat was won by the Cumann na nGaedheal candidate Martin Conlon.
1925 by-election: Roscommon :
| Party | Party | Candidate | FPv% | Count |
| Party | Party | Candidate | FPv% | 1 |
| | Cumann na nGaedheal | Martin Conlon | 61.2 | 21,118 |
| | Republican | John J. O'Kelly | 38.8 | 13,410 |
| Electorate: 52,929 Valid: 34,528 Quota: 17,265 Turnout: 65.2% |||||

### 1923 general election

1923 general election: Roscommon :
| Party | Party | Candidate | FPv% | 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 |
| | Republican | George Noble Plunkett | 17.7 | 5,507 | 5,537 | 5,567 | 5,658 | 5,893 | 6,879 | | | | | |
| | Cumann na nGaedheal | Andrew Lavin | 16.0 | 5,001 | 5,073 | 5,205 | 5,210 | 5,372 | 5,453 | 5,470 | 5,638 | 5,965 | 6,306 | |
| | Republican | Gerald Boland | 12.3 | 3,843 | 3,857 | 3,866 | 4,288 | 4,321 | 4,455 | 5,002 | 5,066 | 5,492 | 5,630 | 5,675 |
| | Cumann na nGaedheal | Henry Finlay | 12.3 | 3,827 | 3,879 | 3,919 | 3,947 | 3,990 | 4,002 | 4,007 | 4,205 | 4,568 | 5,137 | 6,489 |
| | Cumann na nGaedheal | Patrick Dyar | 7.2 | 2,253 | 2,375 | 2,453 | 2,466 | 2,490 | 2,502 | 2,509 | 2,561 | 2,691 | 2,865 | |
| | Cumann na nGaedheal | Patrick Dorr | 6.1 | 1,906 | 1,926 | 1,974 | 2,034 | 2,079 | 2,090 | 2,098 | 2,475 | 2,531 | 3,002 | 3,759 |
| | Farmers' Party | Michael Brennan | 5.5 | 1,711 | 1,745 | 1,853 | 1,869 | 1,919 | 1,933 | 1,946 | 2,438 | 2,523 | | |
| | Labour | Liam Kelleher | 5.0 | 1,545 | 1,673 | 1,690 | 1,717 | 1,791 | 1,848 | 1,875 | 1,929 | | | |
| | Farmers' Party | Edward Cline | 4.5 | 1,397 | 1,422 | 1,584 | 1,617 | 1,675 | 1,691 | 1,706 | | | | |
| | Republican | James Moran | 3.9 | 1,205 | 1,216 | 1,234 | 1,339 | 1,395 | | | | | | |
| | Republican | Gerald Davis | 2.7 | 839 | 842 | 849 | | | | | | | | |
| | Independent | Jasper Tully | 2.6 | 811 | 869 | 901 | 905 | | | | | | | |
| | Farmers' Party | John Drury | 2.3 | 716 | 739 | | | | | | | | | |
| | Independent | Henry Fitzgibbon | 2.0 | 636 | | | | | | | | | | |
| Electorate: 53,710 Valid: 31,197 Quota: 6,240 Turnout: 58.1% |||||||||||||||