Roscommon (Parliament of Ireland constituency)
# Roscommon (Parliament of Ireland constituency)

Roscommon was a constituency representing the parliamentary borough of Roscommon in the Irish House of Commons from 1611 to 1800. Between 1725 and 1793 Catholics and those married to Catholics could not vote.

## Members of Parliament

* 1613–1615 Maurice Smith and William Marwood
* 1634–1635 George Carr and Edward Deane
* 1639–1649 Robert Bysse and Walter Loftus (died 1641)
* 1661–1666 Oliver Jones and William Somers

### 1689–1801

| Election | First member | First party | | Second member | Second party |
| - | - | - | - | - | - |
| 1689 Patriot Parliament | John Dillon | | | John Kelly | |
| 1692 | Hercules Davys | | | Henry Sandford | |
| 1695 | Sir Arthur Cole, 2nd Bt | | | Henry Sandford | |
| September 1703 | Robert Sandys | | | Henry Sandford | |
| 1703 | William Westgarth | | | Henry Sandford | |
| 1711 | David Kennedy | | | Henry Sandford | |
| 1713 | Edward Crofton | | | Henry Sandford | |
| 1733 | Edward Crofton | | | William Sandford | |
| 1740 | Thomas Mahon | | | William Sandford | |
| 1759 | Thomas Mahon | | | Edward Sandford | |
| 1761 | Sir Marcus Lowther-Crofton, 1st Bt | | | Sir FitzGerald Aylmer, 6th Bt | |
| 1768 | Nathaniel Clements | | | Robert Sandford | |
| 1769 | Robert Tighe | | | Robert Sandford | |
| 1776 | Henry Sandford | | | Robert Sandford | |
| 1783 | Sir Cornwallis Maude, 3rd Bt | | | George Sandford | |
| 1785 | Maurice Coppinger | | | George Sandford | |
| 1790 | Hon. Nathaniel Clements | | | George Sandford | |
| 1791 | Henry Sandford | | | George Sandford | |
| January 1798 | Henry Sandford | | | Silver Oliver | |
| 1798 | Henry Sandford | | | George Sandford | |
| 1799 | Henry Sandford | | | William Johnson | |
| 1801 | Constituency disenfranchised | Constituency disenfranchised | Constituency disenfranchised | Constituency disenfranchised | Constituency disenfranchised |
