After the Cromwellian conquest of Ireland, the Kingdom of Ireland ceased to operate, and Ireland was governed as part of the Protectorate. The Parliament of Ireland did not meet, and instead, 30 MPs were elected to the Protectorate Parliament in London. The MPs below were preceded by the MPs of the Second Irish House of Commons of Charles I elected in 1639 and succeeded after the Restoration by the MPs of the Irish House of Commons of Charles II elected in 1661.
| Constituency | 1654 | 1656 | 1659 | |
|---|---|---|---|---|
| Towns of Bandon and Kinsale | Vincent Gookin | Vincent Gookin | Vincent Gookin | |
| Counties of Carlow, Wexford, Kilkenny, and Queen's County | Thomas Sadler Daniel Axtell | Thomas Sadler Daniel Redman | Daniel Redmond John Brett | |
| Towns of Carrickfergus and Belfast | Major Daniel Redmond | John Davis | John Duckenfield | |
| Counties of Cavan, Fermanagh, and Monaghan | Col. John Cole | Richard Blayney, 4th Baron Blayney | Thomas Coote | |
| County of Cork | Roger Boyle | Roger Boyle | Sir Maurice Fenton | |
| Towns of Cork and Youghal | Col. William Jephson | Col. William Jephson | Francis Fowlkes | |
| Towns of Derry and Coleraine | Ralph King | Ralph King | Ralph King | |
| Counties of Down, Antrim, and Armagh | Col. Robert Venables Col. Arthur Hill[1] | Col. Thomas Cooper Lt-Col James Trayle | Sir John Skeffington, Bt George Rawden | |
| City of Dublin | Alderman Daniel Hutchinson | Richard Tighe | Arthur Annesley | |
| County of Dublin | Col. John Hewson | John Bysse | Sir Theophilus Jones | |
| Counties of Galway and Mayo | Sir Charles Coote John Reynolds | Sir Charles Coote Lt Col John Brett | Sir Charles Coote Col. Thomas Sadler | |
| Counties of Kerry, Limerick, and Clare | Major Gen. Sir Hardress Waller Col. Henry Ingoldsby | Major Gen. Sir Hardress Waller Col. Henry Ingoldsby | Major Gen. Sir Hardress Waller Col. Henry Ingoldsby | |
| Counties of Kildare and Wicklow | Maj. Anthony Morgan Maj. William Meredith | Sir Hardress Waller Anthony Morgan | Dudley Loftus Henry Markham | |
| City and County of the City of Limerick and Kilmallock | William Purefoy | Walter Waller | George Ingoldsby | |
| Counties of Londonderry, Donegal, and Tyrone | Col. John Clark Thomas Newburgh | Tristram Beresford Thomas Newburgh | Col. John Gorges Alexander Staples | |
| Counties of Meath and Louth | Col. John Fowk, Governor of Drogheda Major William Cadogan | Col. John Fowk, Governor of Drogheda Sir William Aston | Sir Anthony Morgan William Aston | |
| Counties of Sligo, Roscommon, and Leitrim | Sir Robert King Sir John Temple | Sir Robert King John Bridges | Robert Parke Thomas Waller | |
| Counties of Tipperary and Waterford | John Reynolds Jerome Sankey | John Reynolds, Commissary-General Daniel Abbot | Sir Jerome Sankey Thomas Stanley | |
| Cities of Waterford and Clonmel | William Halsey | William Halsey | William Halsey | |
| Counties of Westmeath, Longford, and King's County | Theophilus Jones Thomas Scot | Theophilus Jones Maj. Henry Owen | Francis Aungier, 1st Earl of Longford Sir Henry Piers |