# Cavan–Monaghan (Dáil constituency)

Cavan–Monaghan is a parliamentary constituency represented in Dáil Éireann, the lower house of the Irish parliament or Oireachtas. The constituency elects five deputies (Teachtaí Dála, commonly known as TDs) on the system of proportional representation by means of the single transferable vote (PR-STV).

## History and boundaries

It was created under the Electoral (Amendment) Act 1974 from the former constituencies of Cavan and Monaghan and was first used at the 1977 general election.
The constituency includes the entire area of both County Cavan and County Monaghan, taking in Cavan town, Monaghan town, Clones, Cootehill, Belturbet, Bailieborough, Castleblayney and Carrickmacross.
At the 2016 general election, 36 electoral divisions in the west of County Cavan were transferred to the Sligo–Leitrim constituency and Cavan–Monaghan became a 4-seat constituency. This was reversed by the Electoral (Amendment) (Dáil Constituencies) Act 2017, which took effect at the 2020 general election.
The Constituency Review Report 2023 of the Electoral Commission recommended that at the next general election, Cavan–Monaghan remain as a five-seat constituency, consisting of the whole of the counties of Cavan and Monaghan, with the area in the north of County Meath transferred to Meath East.
For the 2024 general election, the Electoral (Amendment) Act 2023 defines the constituency as:

## Constituency profile

Cavan–Monaghan is predominantly rural with 75% of the population living outside the main towns. Manufacturing, construction and agriculture are the largest sectors of the local economy.
It is a border constituency and has historically been strongly Republican; hunger striker Kieran Doherty won a seat in the 1981 general election as an Anti H-Block candidate. In 1997, Caoimhghín Ó Caoláin, became the first TD elected for Sinn Féin in any constituency since 1957. In recent elections, the constituency has seen mainly a three-way fight between Fine Gael, Sinn Féin and Fianna Fáil.

## TDs

Teachtaí Dála (TDs) for Cavan–Monaghan 1977– :
| Key to parties  AHB = Anti H-Block  FF = Fianna Fáil  FG = Fine Gael  Ind = Independent  SF = Sinn Féin ||||||||||||
| Dáil | Election | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) |
| 21st | 1977 | | Jimmy Leonard (FF) | | John Wilson (FF) | | Thomas J. Fitzpatrick (FG) | | Rory O'Hanlon (FF) | | John Conlan (FG) |
| 22nd | 1981 | | Kieran Doherty (AHB) | | John Wilson (FF) | | Thomas J. Fitzpatrick (FG) | | Rory O'Hanlon (FF) | | John Conlan (FG) |
| 23rd | 1982 (Feb) | | Jimmy Leonard (FF) | | John Wilson (FF) | | Thomas J. Fitzpatrick (FG) | | Rory O'Hanlon (FF) | | John Conlan (FG) |
| 24th | 1982 (Nov) | | Jimmy Leonard (FF) | | John Wilson (FF) | | Thomas J. Fitzpatrick (FG) | | Rory O'Hanlon (FF) | | John Conlan (FG) |
| 25th | 1987 | | Jimmy Leonard (FF) | | John Wilson (FF) | | Thomas J. Fitzpatrick (FG) | | Rory O'Hanlon (FF) | | Andrew Boylan (FG) |
| 26th | 1989 | | Jimmy Leonard (FF) | | John Wilson (FF) | | Bill Cotter (FG) | | Rory O'Hanlon (FF) | | Andrew Boylan (FG) |
| 27th | 1992 | | Jimmy Leonard (FF) | | Brendan Smith (FF) | | Seymour Crawford (FG) | | Rory O'Hanlon (FF) | | Andrew Boylan (FG) |
| 28th | 1997 | | Caoimhghín Ó Caoláin (SF) | | Brendan Smith (FF) | | Seymour Crawford (FG) | | Rory O'Hanlon (FF) | | Andrew Boylan (FG) |
| 29th | 2002 | | Caoimhghín Ó Caoláin (SF) | | Brendan Smith (FF) | | Seymour Crawford (FG) | | Rory O'Hanlon (FF) | | Paudge Connolly (Ind) |
| 30th | 2007 | | Caoimhghín Ó Caoláin (SF) | | Brendan Smith (FF) | | Seymour Crawford (FG) | | Rory O'Hanlon (FF) | | Margaret Conlon (FF) |
| 31st | 2011 | | Caoimhghín Ó Caoláin (SF) | | Brendan Smith (FF) | | Heather Humphreys (FG) | | Joe O'Reilly (FG) | | Seán Conlan (FG) |
| 32nd | 2016 | | Caoimhghín Ó Caoláin (SF) | | Brendan Smith (FF) | | Heather Humphreys (FG) | | Niamh Smyth (FF) | 4 seats 2016–2020 | 4 seats 2016–2020 |
| 33rd | 2020 | | Matt Carthy (SF) | | Brendan Smith (FF) | | Heather Humphreys (FG) | | Niamh Smyth (FF) | | Pauline Tully (SF) |
| 34th | 2024 | | Matt Carthy (SF) | | Brendan Smith (FF) | | David Maxwell (FG) | | Niamh Smyth (FF) | | Cathy Bennett (SF) |
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.
* ↑ Fitzpatrick served as Ceann Comhairle in the 24th Dáil from 1982 to 1987 and was returned automatically at the 1987 general election.
* ↑ O'Hanlon served as Ceann Comhairle in the 29th Dáil from 2002 to 2007 and was returned automatically at the 2007 general election.

## Elections

^ *: Outgoing TD

### 2024 general election

2024 general election: Cavan–Monaghan :
| Party | Party | Candidate | FPv% | 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 |
| | Sinn Féin | Matt Carthy | 13.5 | 9,363 | 9,385 | 9,446 | 9,487 | 9,551 | 9,857 | 10,094 | 10,257 | 10,337 | 10,898 | 10,981 | 15,121 | | |
| | Sinn Féin | Cathy Bennett | 10.0 | 6,904 | 6,933 | 6,950 | 6,987 | 7,013 | 7,273 | 7,373 | 7,490 | 7,542 | 8,110 | 8,220 | 10,102 | 13,383 | |
| | Fianna Fáil | Brendan Smith | 9.6 | 6,653 | 6,655 | 6,660 | 6,730 | 6,760 | 6,841 | 7,154 | 7,512 | 8,523 | 9,807 | 10,062 | 10,522 | 10,616 | 10,886 |
| | Sinn Féin | Pauline Tully | 9.3 | 6,455 | 6,465 | 6,471 | 6,504 | 6,643 | 6,958 | 7,384 | 7,520 | 7,817 | 7,862 | 7,868 | | | |
| | Fianna Fáil | Robbie Gallagher | 9.1 | 6,273 | 6,286 | 6,319 | 6,398 | 6,408 | 6,472 | 6,526 | 6,767 | 6,857 | | | | | |
| | Fine Gael | David Maxwell | 8.9 | 6,199 | 6,215 | 6,246 | 6,333 | 6,368 | 6,452 | 6,525 | 7,695 | 10,565 | 12,353 | | | | |
| | Fianna Fáil | Niamh Smyth | 8.4 | 5,789 | 5,803 | 5,827 | 5,905 | 5,961 | 6,056 | 6,472 | 6,996 | 8,080 | 10,039 | 10,313 | 10,783 | 10,856 | 11,058 |
| | Aontú | Sarah O'Reilly | 7.4 | 5,148 | 5,204 | 5,307 | 5,342 | 5,478 | 6,153 | 7,122 | 7,487 | 8,068 | 8,407 | 8,490 | 8,998 | 9,129 | 10,067 |
| | Fine Gael | T.P. O'Reilly | 6.3 | 4,328 | 4,333 | 4,341 | 4,399 | 4,493 | 4,540 | 5,118 | 6,425 | | | | | | |
| | Fine Gael | Carmel Brady | 6.1 | 4,259 | 4,266 | 4,272 | 4,324 | 4,353 | 4,415 | 4,519 | | | | | | | |
| | Independent Ireland | Shane P. O'Reilly | 4.4 | 3,078 | 3,106 | 3,143 | 3,161 | 3,294 | 3,717 | | | | | | | | |
| | Irish Freedom Party | Val Martin | 1.8 | 1,258 | 1,311 | 1,448 | 1,449 | 1,591 | | | | | | | | | |
| | PBP–Solidarity | Emma Hendrick | 1.4 | 967 | 979 | 998 | 1,158 | 1,194 | | | | | | | | | |
| | Independent | Lester Gordon | 1.3 | 921 | 998 | 1,036 | 1,046 | | | | | | | | | | |
| | Green | Eddie O'Gara | 1.1 | 739 | 746 | 750 | | | | | | | | | | | |
| | Liberty Republic | Shane Mulligan | 0.7 | 507 | 544 | | | | | | | | | | | | |
| | National Party | Mark Moore | 0.3 | 177 | | | | | | | | | | | | | |
| | Independent | Joseph Duffy | 0.2 | 122 | | | | | | | | | | | | | |
| | Independent | Feargal Deery | 0.1 | 79 | | | | | | | | | | | | | |
| | Independent | Jimmy Mee | 0.1 | 27 | | | | | | | | | | | | | |
| Electorate: 109,152 Valid: 69,246 Spoilt: 658 Quota: 11,542 Turnout: 64.0% ||||||||||||||||||
* ↑ Hendrick is a member of People Before Profit.

### 2020 general election

2020 general election: Cavan–Monaghan :
| 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 |
| | Sinn Féin | Matt Carthy | 22.6 | 16,310 | | | | | | | | | | |
| | Fine Gael | Heather Humphreys | 17.7 | 12,808 | | | | | | | | | | |
| | Sinn Féin | Pauline Tully | 14.1 | 10,166 | 13,457 | | | | | | | | | |
| | Fianna Fáil | Brendan Smith | 10.2 | 7,354 | 7,434 | 7,476 | 7,482 | 7,519 | 7,622 | 7,667 | 7,840 | 8,112 | 8,946 | 11,004 |
| | Fianna Fáil | Niamh Smyth | 8.0 | 5,745 | 5,889 | 5,985 | 5,996 | 6,053 | 6,152 | 6,225 | 6,322 | 6,806 | 8,176 | 10,951 |
| | Fine Gael | T.P. O'Reilly | 7.1 | 5,124 | 5,154 | 5,175 | 5,179 | 5,390 | 5,469 | 5,499 | 6,592 | 7,197 | 8,050 | 8,646 |
| | Fianna Fáil | Robbie Gallagher | 7.0 | 5,062 | 5,306 | 5,467 | 5,476 | 5,603 | 5,650 | 5,692 | 5,740 | 6,253 | 6,882 | |
| | Aontú | Sarah O'Reilly | 5.3 | 3,840 | 3,963 | 4,204 | 4,285 | 4,314 | 4,416 | 4,733 | 4,821 | 5,745 | | |
| | Green | Tate Donnelly | 3.5 | 2,501 | 2,710 | 3,025 | 3,061 | 3,104 | 3,453 | 4,075 | 4,187 | | | |
| | Fine Gael | Sandra McIntyre | 1.8 | 1,301 | 1,333 | 1,357 | 1,365 | 1,621 | 1,698 | 1,719 | | | | |
| | Solidarity–PBP | Emmett Smith | 1.2 | 830 | 910 | 1,261 | 1,279 | 1,284 | 1,458 | | | | | |
| | Labour | Liam van der Spek | 1.4 | 983 | 1,017 | 1,128 | 1,137 | 1,149 | | | | | | |
| | Independent | Joseph Duffy | 0.2 | 159 | 171 | 235 | | | | | | | | |
| Electorate: 110,190 Valid: 72,183 Spoilt: 695 Quota: 12,031 Turnout: 72,878 (66.14%) |||||||||||||||
* ↑ Smith was a member of People Before Profit.

### 2016 general election

2016 general election: Cavan–Monaghan :
| 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 |
| | Fine Gael | Heather Humphreys | 20.8 | 12,391 | | | | | | | | | |
| | Sinn Féin | Caoimhghín Ó Caoláin | 16.9 | 10,060 | 10,104 | 10,119 | 10,265 | 10,415 | 10,651 | 11,047 | 11,867 | 17,182 | |
| | Fianna Fáil | Brendan Smith | 14.7 | 8,775 | 8,802 | 8,807 | 8,850 | 8,952 | 9,046 | 9,142 | 10,926 | 11,357 | 12,120 |
| | Fine Gael | Joe O'Reilly | 11.0 | 6,566 | 6,846 | 6,848 | 6,887 | 6,977 | 7,255 | 7,715 | 8,063 | 8,321 | 8,790 |
| | Fianna Fáil | Niamh Smyth | 10.5 | 6,268 | 6,296 | 6,297 | 6,342 | 6,455 | 6,584 | 6,742 | 8,216 | 8,762 | 9,644 |
| | Sinn Féin | Kathryn Reilly | 10.2 | 6,066 | 6,073 | 6,078 | 6,268 | 6,419 | 6,599 | 6,737 | 6,993 | | |
| | Fianna Fáil | Mike Durkan | 4.9 | 2,909 | 2,927 | 2,931 | 2,941 | 2,977 | 3,062 | 3,246 | | | |
| | Independent | Mary Smyth | 2.6 | 1,589 | 1,600 | 1,609 | 1,709 | 1,911 | 2,062 | 2,340 | | | |
| | Independent | Seán Conlan | 2.8 | 1,665 | 1,686 | 1,688 | 1,754 | 1,853 | 1,980 | | | | |
| | Green | Mícheál Callaghan | 2.1 | 1,251 | 1,262 | 1,269 | 1,410 | 1,523 | | | | | |
| | Independent | John Wilson | 1.7 | 1,023 | 1,029 | 1,036 | 1,171 | | | | | | |
| | Direct Democracy | Mick McDermott | 0.8 | 475 | 476 | 479 | | | | | | | |
| | Direct Democracy | Aoife O'Connell | 0.5 | 279 | 282 | 292 | | | | | | | |
| | Independent | Emmett Smith | 0.4 | 245 | 246 | 258 | | | | | | | |
| | Independent | Jimmy Mee | 0.1 | 88 | 90 | | | | | | | | |
| Electorate: 90,618 Valid: 59,650 Spoilt: 598 (1.0%) Quota: 11,931 Turnout: 60,248 (66.5%) ||||||||||||||

### 2011 general election

2011 general election: Cavan–Monaghan :
| 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 |
| | Sinn Féin | Caoimhghín Ó Caoláin | 16.7 | 11,913 | | | | | | | | |
| | Fianna Fáil | Brendan Smith | 13.6 | 9,702 | 9,734 | 9,817 | 10,092 | 10,249 | 10,770 | 11,237 | 14,667 | |
| | Fine Gael | Joe O'Reilly | 11.7 | 8,333 | 8,361 | 8,412 | 8,599 | 8,679 | 10,492 | 11,201 | 11,305 | 11,434 |
| | Fine Gael | Heather Humphreys | 11.4 | 8,144 | 8,201 | 8,374 | 8,521 | 8,886 | 9,565 | 10,177 | 10,525 | 10,861 |
| | Fine Gael | Seán Conlan | 11.0 | 7,864 | 7,924 | 8,225 | 8,319 | 8,728 | 9,162 | 9,895 | 10,623 | 11,178 |
| | Sinn Féin | Kathryn Reilly | 9.2 | 6,539 | 6,624 | 6,858 | 7,289 | 7,886 | 8,324 | 9,627 | 9,884 | 10,340 |
| | Fianna Fáil | Margaret Conlon | 6.5 | 4,658 | 4,703 | 4,817 | 4,879 | 5,052 | 5,070 | 5,279 | | |
| | Labour | Liam Hogan | 5.6 | 4,011 | 4,144 | 4,273 | 4,527 | 4,793 | 4,998 | | | |
| | Fine Gael | Peter McVitty | 5.4 | 3,858 | 3,881 | 3,912 | 4,207 | 4,246 | | | | |
| | Independent | Seamus Treanor | 2.8 | 1,974 | 2,007 | 2,379 | 2,658 | | | | | |
| | Independent | Caroline Forde | 2.7 | 1,912 | 1,993 | 2,167 | | | | | | |
| | New Vision | John McGuirk | 2.4 | 1,708 | 1,760 | | | | | | | |
| | Green | Darcy Lonergan | 0.7 | 530 | | | | | | | | |
| | Independent | Joseph Duffy | 0.2 | 129 | | | | | | | | |
| Electorate: 99,178 Valid: 71,275 Spoilt: 867 (1.2%) Quota: 11,880 Turnout: 72,142 (72.7%) |||||||||||||

### 2007 general election

Rory O'Hanlon was Ceann Comhairle at the dissolution of the 29th Dáil and therefore deemed to be returned automatically. The constituency was treated as a four-seater for the purposes of calculating the quota.
2007 general election: Cavan–Monaghan :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 |
| | Fianna Fáil | Rory O'Hanlon | N/A | Returned automatically | Returned automatically | Returned automatically | Returned automatically |
| | Fianna Fáil | Brendan Smith | 23.6 | 15,548 | | | |
| | Sinn Féin | Caoimhghín Ó Caoláin | 20.0 | 13,162 | | | |
| | Fine Gael | Seymour Crawford | 16.7 | 10,978 | 11,057 | 11,199 | 13,758 |
| | Fine Gael | Joe O'Reilly | 14.5 | 9,550 | 9,895 | 10,214 | 11,238 |
| | Fianna Fáil | Margaret Conlon | 14.1 | 9,303 | 11,062 | 11,145 | 13,203 |
| | Independent | Paudge Connolly | 6.0 | 3,955 | 4,034 | 4,157 | |
| | Green | Vincent P. Martin | 3.6 | 2,382 | 2,445 | 2,687 | |
| | Labour | Des Cullen | 1.2 | 796 | 849 | | |
| | Independent | T. J. Fay | 0.2 | 113 | 125 | | |
| Electorate: 92,248 Valid: 65,787 Spoilt: 760 (1.2%) Quota: 13,158 Turnout: 66,547 (72.2%) ||||||||

### 2002 general election

2002 general election: Cavan–Monaghan :
| 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 |
| | Sinn Féin | Caoimhghín Ó Caoláin | 17.5 | 10,832 | | | | | | | | | | | |
| | Fianna Fáil | Brendan Smith | 17.3 | 10,679 | | | | | | | | | | | |
| | Independent | Paudge Connolly | 12.5 | 7,722 | 7,867 | 7,871 | 7,946 | 8,375 | 8,614 | 8,973 | 9,678 | 10,870 | | | |
| | Fianna Fáil | Rory O'Hanlon | 11.6 | 7,204 | 7,295 | 7,479 | 7,541 | 7,648 | 7,807 | 7,943 | 8,662 | 11,032 | | | |
| | Fine Gael | Seymour Crawford | 9.9 | 6,113 | 6,136 | 6,139 | 6,178 | 6,286 | 6,397 | 6,509 | 6,803 | 7,078 | 7,392 | 7,702 | 9,165 |
| | Fine Gael | Andrew Boylan | 7.8 | 4,819 | 4,855 | 4,889 | 5,061 | 5,084 | 5,211 | 5,374 | 5,516 | 5,633 | 5,844 | 5,905 | 9,044 |
| | Fine Gael | Paddy O'Reilly | 7.5 | 4,639 | 4,667 | 4,698 | 4,817 | 4,836 | 4,955 | 5,108 | 5,320 | 5,429 | 5,628 | 5,710 | |
| | Fianna Fáil | Robbie Gallagher | 6.0 | 3,731 | 3,789 | 3,874 | 3,921 | 4,004 | 4,197 | 4,319 | 4,535 | | | | |
| | Independent | Vincent P. Martin | 3.1 | 1,943 | 1,992 | 1,997 | 2,087 | 2,265 | 2,371 | 2,646 | | | | | |
| | Progressive Democrats | Gerry McCaughey | 1.8 | 1,131 | 1,144 | 1,154 | 1,219 | 1,261 | | | | | | | |
| | Green | Marcus McCabe | 1.8 | 1,100 | 1,138 | 1,143 | 1,301 | 1,385 | 1,513 | | | | | | |
| | Independent | Joe Brennan | 1.7 | 1,026 | 1,046 | 1,047 | 1,114 | | | | | | | | |
| | Labour | Francie Fitzsimons | 0.9 | 550 | 566 | 572 | | | | | | | | | |
| | Christian Solidarity | Tony Smith | 0.6 | 358 | 365 | 368 | | | | | | | | | |
| Electorate: 87,595 Valid: 61,847 Spoilt: 863 (1.4%) Quota: 10,308 Turnout: 62,710 (71.6%) ||||||||||||||||

### 1997 general election

1997 general election: Cavan–Monaghan :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| | Sinn Féin | Caoimhghín Ó Caoláin | 19.4 | 11,531 | | | | | | |
| | Fianna Fáil | Brendan Smith | 15.1 | 8,998 | 9,194 | 9,196 | 9,551 | 9,733 | 10,434 | |
| | Fianna Fáil | Rory O'Hanlon | 12.3 | 7,325 | 7,692 | 7,700 | 8,020 | 8,394 | 8,615 | 9,551 |
| | Fianna Fáil | Ann Leonard | 11.0 | 6,564 | 6,881 | 6,898 | 7,259 | 7,638 | 7,786 | 8,181 |
| | Fine Gael | Seymour Crawford | 11.0 | 6,552 | 6,651 | 6,660 | 6,796 | 7,173 | 7,800 | 10,288 |
| | Fine Gael | Andrew Boylan | 8.2 | 4,894 | 4,956 | 4,963 | 5,140 | 5,506 | 8,198 | 9,706 |
| | Fine Gael | Bill Cotter | 7.8 | 4,665 | 4,774 | 4,779 | 4,920 | 5,396 | 5,857 | |
| | Fine Gael | Paddy O'Reilly | 7.6 | 4,532 | 4,589 | 4,593 | 4,799 | 5,130 | | |
| | Labour | Ann Gallagher | 4.0 | 2,359 | 2,535 | 2,557 | 2,735 | | | |
| | Christian Solidarity | Gene Flood | 1.7 | 1,024 | 1,151 | 1,181 | | | | |
| | Christian Solidarity | Larry McGinn | 1.7 | 1,001 | 1,062 | 1,080 | | | | |
| | Independent | Joseph Duffy | 0.2 | 99 | 134 | | | | | |
| Electorate: 83,005 Valid: 59,544 Spoilt: 601 (1.0%) Quota: 9,925 Turnout: 60,145 (72.5%) |||||||||||

### 1992 general election

1992 general election: Cavan–Monaghan :
| 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 | Rory O'Hanlon | 13.0 | 7,125 | 7,129 | 7,187 | 7,278 | 8,086 | 8,715 | 9,045 | 9,767 |
| | Fianna Fáil | Brendan Smith | 12.9 | 7,063 | 7,069 | 7,177 | 7,335 | 9,162 | | | |
| | Fianna Fáil | Jimmy Leonard | 11.9 | 6,555 | 6,561 | 6,596 | 6,645 | 7,056 | 7,838 | 7,981 | 8,344 |
| | Fine Gael | Bill Cotter | 9.7 | 5,291 | 5,301 | 5,321 | 5,364 | 5,377 | 5,622 | 5,931 | |
| | Fine Gael | Seymour Crawford | 9.5 | 5,192 | 5,194 | 5,208 | 5,502 | 5,553 | 5,747 | 6,224 | 8,653 |
| | Fine Gael | Andrew Boylan | 8.7 | 4,763 | 4,767 | 4,826 | 5,105 | 5,263 | 5,347 | 7,768 | 9,285 |
| | Labour | Ann Gallagher | 8.3 | 4,543 | 4,595 | 4,640 | 4,996 | 5,105 | 5,978 | 6,593 | 7,234 |
| | Sinn Féin | Caoimhghín Ó Caoláin | 7.7 | 4,197 | 4,215 | 4,244 | 4,312 | 4,345 | | | |
| | Fine Gael | Joe O'Reilly | 7.2 | 3,942 | 3,970 | 4,001 | 4,304 | 4,593 | 4,692 | | |
| | Fianna Fáil | Michael Smith | 6.5 | 3,551 | 3,553 | 3,665 | 3,808 | | | | |
| | Independent | Winston Turner | 3.3 | 1,825 | 1,837 | 1,945 | | | | | |
| | Independent | Mary Smith | 1.3 | 686 | 690 | | | | | | |
| | Workers' Party | Jim Finnegan | 0.3 | 157 | | | | | | | |
| Electorate: 79,011 Valid: 54,890 Spoilt: 993 (1.8%) Quota: 9,149 Turnout: 55,883 (70.7%) ||||||||||||

### 1989 general election

1989 general election: Cavan–Monaghan :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| | Fianna Fáil | John Wilson | 18.3 | 9,708 | | | | | | |
| | Fianna Fáil | Rory O'Hanlon | 16.3 | 8,663 | 9,103 | | | | | |
| | Fianna Fáil | Jimmy Leonard | 16.0 | 8,500 | 8,727 | 8,954 | | | | |
| | Fine Gael | Andrew Boylan | 13.5 | 7,180 | 7,232 | 7,232 | 7,257 | 7,415 | 7,600 | 7,971 |
| | Fine Gael | Bill Cotter | 12.7 | 6,765 | 6,770 | 6,773 | 6,798 | 6,848 | 7,081 | 7,665 |
| | Fine Gael | Joe O'Reilly | 10.5 | 5,660 | 5,610 | 5,615 | 5,623 | 5,774 | 6,008 | 6,516 |
| | Sinn Féin | Caoimhghín Ó Caoláin | 9.1 | 4,849 | 4,867 | 4,872 | 4,885 | 4,959 | 5,163 | |
| | Independent | Margaret Kiernan | 2.0 | 1,069 | 1,073 | 1,075 | 1,113 | 1,250 | | |
| | Independent | Damien Matthews | 1.3 | 705 | 717 | 721 | 745 | | | |
| | Independent | Joseph Duffy | 0.3 | 155 | 156 | 156 | | | | |
| Electorate: 75,712 Valid: 53,154 Spoilt: 1,041 (1.9%) Quota: 8,852 Turnout: 54,195 (71.6%) |||||||||||

### 1987 general election

Thomas J. Fitzpatrick was Ceann Comhairle at the dissolution of the 24th Dáil and therefore deemed to be returned automatically. The constituency was treated as a four-seater for the purposes of calculating the quota.
1987 general election: Cavan–Monaghan :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 |
| | Fine Gael | Thomas J. Fitzpatrick | N/A | Returned automatically | Returned automatically | Returned automatically | Returned automatically | Returned automatically |
| | Fianna Fáil | Rory O'Hanlon | 19.5 | 11,265 | 11,306 | 11,394 | 11,657 | |
| | Fianna Fáil | John Wilson | 19.3 | 11,163 | 11,178 | 11,250 | 11,599 | |
| | Fine Gael | Andrew Boylan | 17.5 | 10,132 | 10,175 | 10,253 | 10,646 | 10,929 |
| | Fianna Fáil | Jimmy Leonard | 16.1 | 9,319 | 9,444 | 9,498 | 9,790 | 11,985 |
| | Fine Gael | John Conlan | 15.2 | 8,795 | 8,875 | 8,933 | 9,183 | 9,568 |
| | Sinn Féin | Caoimhghín Ó Caoláin | 7.3 | 4,219 | 4,267 | 4,352 | 4,673 | |
| | Independent | Patrick McKiernan | 3.2 | 1,868 | 1,922 | 2,051 | | |
| | Workers' Party | Oliver Rogers | 1.0 | 577 | 603 | | | |
| | Independent | Pádraig Duffy | 0.8 | 474 | | | | |
| Electorate: 75,742 Valid: 57,812 Quota: 11,563 Turnout: 76.3% |||||||||

### November 1982 general election

November 1982 general election: Cavan–Monaghan :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 |
| | Fianna Fáil | John Wilson | 18.8 | 10,779 | | | | |
| | Fine Gael | Thomas J. Fitzpatrick | 16.0 | 9,185 | 9,264 | 9,270 | 9,927 | |
| | Fianna Fáil | Jimmy Leonard | 15.0 | 8,611 | 8,697 | 8,712 | 8,980 | 10,201 |
| | Fianna Fáil | Rory O'Hanlon | 14.6 | 8,372 | 8,615 | 8,642 | 8,736 | 11,605 |
| | Fine Gael | John Conlan | 13.2 | 7,560 | 7,563 | 7,573 | 9,916 | |
| | Fine Gael | Aileen Cahill | 8.9 | 5,106 | 5,140 | 5,160 | 5,586 | 5,795 |
| | Fine Gael | Hugh McElvaney | 6.7 | 3,852 | 3,858 | 3,865 | | |
| | Fianna Fáil | Michael Smith | 6.4 | 3,639 | 4,422 | 4,459 | 4,491 | |
| | Independent | Seán Ó Neill MacGabhann | 0.3 | 143 | 146 | | | |
| Electorate: 74,446 Valid: 57,247 Quota: 9,542 Turnout: 76.9% |||||||||

### February 1982 general election

February 1982 general election: Cavan–Monaghan :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 |
| | Fianna Fáil | John Wilson | 16.8 | 9,776 | | | | | |
| | Fianna Fáil | Jimmy Leonard | 14.8 | 8,585 | 8,614 | 8,427 | 8,857 | 9,890 | |
| | Fine Gael | Thomas J. Fitzpatrick | 14.3 | 8,317 | 8,386 | 8,427 | 8,956 | 9,236 | 9,753 |
| | Fine Gael | John Conlan | 12.9 | 7,486 | 7,512 | 7,603 | 8,545 | 8,613 | 9,051 |
| | Fine Gael | Robert Fausset | 11.7 | 6,808 | 6,833 | 6,867 | 7,191 | 7,268 | 7,378 |
| | Fianna Fáil | Rory O'Hanlon | 11.4 | 6,651 | 6,692 | 6,798 | 6,857 | 8,697 | 10,159 |
| | Sinn Féin | Séamus McElwaine | 6.8 | 3,974 | 4,079 | 4,183 | 4,243 | 4,365 | |
| | Fianna Fáil | Michael Smith | 5.9 | 3,399 | 3,481 | 3,526 | 3,584 | | |
| | Fine Gael | Thomas O'Reilly | 3.7 | 2,152 | 2,167 | 2,191 | | | |
| | Sinn Féin The Workers' Party | Francis O'Donoghue | 0.9 | 529 | 567 | | | | |
| | Independent | James Kelly | 0.8 | 455 | | | | | |
| Electorate: 73,601 Valid: 58,132 Spoilt: 491 (0.8%) Quota: 9,689 Turnout: 58,623 (79.6%) ||||||||||

### 1981 general election

1981 general election: Cavan–Monaghan :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| | Fianna Fáil | John Wilson | 15.6 | 9,424 | 9,467 | 9,543 | 12,122 | | | |
| | Anti H-Block | Kieran Doherty | 15.1 | 9,121 | 9,197 | 9,342 | 9,469 | 9,580 | 9,709 | 10,063 |
| | Fine Gael | Thomas J. Fitzpatrick | 12.0 | 7,257 | 7,946 | 8,660 | 8,807 | 8,908 | 13,109 | |
| | Fianna Fáil | Jimmy Leonard | 11.6 | 6,984 | 7,039 | 7,082 | 7,240 | 7,752 | 7,997 | 8,304 |
| | Fine Gael | Robert Fausset | 11.2 | 6,785 | 6,994 | 7,572 | 7,637 | 7,657 | | |
| | Fianna Fáil | Rory O'Hanlon | 11.0 | 6,662 | 6,694 | 6,861 | 7,252 | 8,548 | 8,738 | 9,016 |
| | Fine Gael | John Conlan | 10.6 | 6,431 | 6,775 | 7,777 | 7,802 | 7,815 | 10,355 | |
| | Fianna Fáil | Michael Smith | 5.7 | 3,431 | 3,483 | 3,535 | | | | |
| | Fine Gael | Aidan Murray | 4.3 | 2,565 | 2,803 | | | | | |
| | Fine Gael | Mona Hoban | 2.9 | 1,741 | | | | | | |
| Electorate: 70,995 Valid: 60,411 Spoilt: 584 (0.9%) Quota: 10,069 Turnout: 60,995 (85.9%) |||||||||||

### 1977 general election

1977 general election: Cavan–Monaghan :
| 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 | John Wilson | 16.3 | 9,168 | 9,214 | 9,585 | | | | | |
| | Fine Gael | Thomas J. Fitzpatrick | 16.2 | 9,060 | 9,104 | 9,396 | | | | | |
| | Fianna Fáil | Jimmy Leonard | 15.5 | 8,695 | 8,806 | 9,140 | 9,167 | 9,189 | 10,922 | | |
| | Fine Gael | John Conlan | 11.3 | 6,347 | 6,408 | 6,476 | 6,482 | 7,752 | 7,901 | 7,943 | 8,030 |
| | Fianna Fáil | Rory O'Hanlon | 10.8 | 6,045 | 6,187 | 6,482 | 6,531 | 6,604 | 9,305 | 10,623 | |
| | Fine Gael | Brendan Toal | 10.4 | 5,809 | 5,861 | 5,932 | 5,935 | 7,542 | 7,729 | 7,753 | 7,811 |
| | Fianna Fáil | Michael Smith | 8.8 | 4,912 | 4,936 | 5,220 | 5,366 | 5,569 | | | |
| | Fine Gael | John McKenna | 5.6 | 3,166 | 3,183 | 3,332 | 3,348 | | | | |
| | Independent | James Kelly | 3.6 | 2,016 | 2,246 | | | | | | |
| | Sinn Féin The Workers' Party | Owen Kirk | 1.3 | 713 | | | | | | | |
| | Independent | Patrick Harwood | 0.2 | 94 | | | | | | | |
| Electorate: 69,935 Valid: 56,025 Quota: 9,338 Turnout: 80.1% ||||||||||||