Old Leighlin (Parliament of Ireland constituency)
Old Leighlin was a constituency represented in the Irish House of Commons to 1800.
Following the Act of Union 1800 the borough was disfranchised.
Boundaries and Boundary Changes
This constituency was based in Old Leighlin, near the town of Leighlinbridge in County Carlow.Members of Parliament
| Election | First member | First party | Second member | Second party | - | ||
| 1634 | James Cusack | Richard FitzGerald | Fitzgerald sat for Strabane. Replaced by Sir Thomas Meredyth | - | |||
| 1639 | James Cusack | Roger Brereton | Cusack sat for Ballyshannon. Replaced by Thomas Davills | ||||
| 1642 | Walter Chambré | Roger Brereton | |||||
| 1646 | Peter Wybrants | Roger Brereton | |||||
| 1661 | Sir Francis Butler | Charles Meredyth | - | ||||
| 1689 Patriot Parliament | Darby Long | Daniel Doran | - | ||||
| 1692 | John Dunbar | Edward Jones | - | ||||
| 1695 | Richard Boyle | John Beauchamp | - | ||||
| 1703 | James Agar | John Tench | - | ||||
| 1713 | John Beauchamp | St Leger Gilbert | - | ||||
| 1727 | John Beauchamp | Thomas Trotter | - | ||||
| 1745 | Hon. Robert Jocelyn | Thomas Carter | - | ||||
| 1757 | Richard Rigby | Thomas Carter | - | ||||
| May 1761 | John Bourke | Francis Andrews | - | ||||
| 1761 | John Bourke | Edward Nicholson | - | ||||
| 1768 | Sir FitzGerald Aylmer, 6th Bt | Thomas Monck | - | ||||
| 1773 | Sir FitzGerald Aylmer, 6th Bt | John Blaquiere | - | ||||
| 1776 | Hugh Massy | John Blaquiere | - | ||||
| 1777 | Robert Jephson | John Blaquiere | - | ||||
| 1783 | Hon. Henry Luttrell | Hon. Arthur Acheson | - | ||||
| 1787 | Sir Edward Leslie, 1st Bt | Hon. Arthur Acheson | - | ||||
| 1790 | Edward Cooke | Hon. Arthur Acheson | - | ||||
| 1791 | Edward Cooke | Patrick Duigenan | - | ||||
| 1798 | Edward Cooke | Sir Boyle Roche, 1st Bt | - | ||||
| 1801 | Constituency disenfranchised | Constituency disenfranchised | Constituency disenfranchised | Constituency disenfranchised | Constituency disenfranchised | - |