St Johnstown (County Longford) (Parliament of Ireland constituency)
# St Johnstown (County Longford) (Parliament of Ireland constituency)

St Johnstown was a borough constituency for Ballinalee or Saintjohnstown County Longford represented in the Irish House of Commons until 1800.

## Members of Parliament

| Election | First member | First party | | Second member | Second party |
| - | - | - | - | - | - |
| 1634 | John Ware | | | Edmund Beagan | |
| 1639 | John Ware | | | Dudley Loftus | |
| 1661 | John Edgeworth | | | Sir Henry Piers, 1st Baronet | |
| 1689 Patriot Parliament | Sir William Ellis | | | Lt.-Col. James Nugent | |
| 1692 | Sir John Edgeworth | | | Alexander Fraser | |
| 1695 | Sir John Edgeworth | | | John Aghmooty | |
| 1703 | Ambrose Edgeworth | | | John Aghmooty | |
| 1711 | Anthony Atkinson | | | John Aghmooty | |
| 1713 | John Kennedy | | | Robert Edgeworth | |
| 1715 | Henry Edgeworth | | | Robert Edgeworth | |
| 1721 | Henry Edgeworth | | | Robert Edgeworth | |
| 1727 | Henry Edgeworth | | | Thomas Newcomen | |
| 1751 | Hon. John Forbes | | | Thomas Newcomen | |
| 1761 | George Forbes, Viscount Forbes | | | Charles Newcomen | |
| 1762 | George Forbes | | | Charles Newcomen | |
| 1768 | Ralph Fetherston | | | Charles Newcomen | |
| 1773 | Ralph Fetherston | | | Robert Jephson | |
| 1776 | Ralph Fetherston | | | Hon. John Vaughan | |
| 1780 | Sackville Hamilton | | | Hon. John Vaughan | |
| 1783 | Sir Thomas Fetherston, 2nd Bt | | | Nicholas Colthurst | |
| 1790 | George Cavendish | | | John Taylor | |
| January 1798 | Sir William Gleadowe-Newcomen, 1st Bt | | | Francis Hardy | |
| 1798 | Richard Lovell Edgeworth | | | William Moore | |
| 1801 | Constituency disenfranchised | Constituency disenfranchised | Constituency disenfranchised | Constituency disenfranchised | Constituency disenfranchised |
