# List of members of the 1st House of Commons of Northern Ireland

The 1st House of Commons of Northern Ireland was elected at the 1921 Northern Ireland general election.
All members of the Northern Ireland House of Commons are listed. Only Unionist members took their seats. Sinn Féin members sat instead in the republicans Second Dáil, alongside those elected to the Southern Ireland House of Commons; while Nationalist Party members refused to sit in either the Northern Ireland Parliament or the republican Dáil.
Sir James Craig, (later Viscount Craigavon) was appointed Prime Minister of Northern Ireland on 7 June 1921.

## Members

| Name | Constituency | Party |
| Milne Barbour | Antrim | Unionist Party |
| Maj. Hon. Robert William O'Neill | Antrim | Unionist Party |
| George Boyle Hanna | Antrim | Unionist Party |
| Robert Crawford | Antrim | Unionist Party |
| Robert Megaw | Antrim | Unionist Party |
| John Fawcett Gordon | Antrim | Unionist Party |
| Joseph Devlin | Antrim | Nationalist Party |
| Richard Best | Armagh | Unionist Party |
| Michael Collins | Armagh | Sinn Féin |
| Maj. David Shillington | Armagh | Unionist Party |
| John Dillon Nugent | Armagh | Nationalist Party |
| Sir Dawson Bates | East Belfast | Unionist Party |
| Capt. Herbert Dixon | East Belfast | Unionist Party |
| Thompson Donald | East Belfast | Unionist Party |
| James Augustine Duff | East Belfast | Unionist Party |
| Lloyd Campbell | North Belfast | Unionist Party |
| Samuel McGuffin | North Belfast | Unionist Party |
| William Grant | North Belfast | Unionist Party |
| Robert McKeown | North Belfast | Unionist Party |
| Thomas Moles | South Belfast | Unionist Party |
| Hugh Pollock | South Belfast | Unionist Party |
| Sir Crawford McCullagh | South Belfast | Unionist Party |
| Julia McMordie | South Belfast | Unionist Party |
| Thomas Henry Burn | West Belfast | Unionist Party |
| Robert Lynn | West Belfast | Unionist Party |
| William Twaddell | West Belfast | Unionist Party |
| Joseph Devlin | West Belfast | Nationalist Party |
| Sir James Craig, Bt | Down | Unionist Party |
| Éamon de Valera | Down | Sinn Féin |
| J. M. Andrews | Down | Unionist Party |
| Thomas Lavery | Down | Unionist Party |
| Capt. Hon. Harry Mulholland | Down | Unionist Party |
| Robert McBride | Down | Unionist Party |
| Thomas McMullan | Down | Unionist Party |
| Patrick O'Neill | Down | Nationalist Party |
| Arthur Griffith | Fermanagh and Tyrone | Sinn Féin |
| Edward Archdale | Fermanagh and Tyrone | Unionist Party |
| William Coote | Fermanagh and Tyrone | Unionist Party |
| Seán Milroy | Fermanagh and Tyrone | Sinn Féin |
| William Thomas Miller | Fermanagh and Tyrone | Unionist Party |
| James Cooper | Fermanagh and Tyrone | Unionist Party |
| Seán O'Mahony | Fermanagh and Tyrone | Sinn Féin |
| Thomas Harbison | Fermanagh and Tyrone | Nationalist Party |
| Sir Robert Anderson | Londonderry | Unionist Party |
| Eoin MacNeill | Londonderry | Sinn Féin |
| Dehra Chichester | Londonderry | Unionist Party |
| John Martin Mark | Londonderry | Unionist Party |
| George Leeke | Londonderry | Nationalist Party |
| Dr John Campbell | Queen's University of Belfast | Unionist Party |
| Prof. Robert Johnstone | Queen's University of Belfast | Unionist Party |
| John Hanna Robb | Queen's University of Belfast | Unionist Party |
| Dr Hugh Morrison | Queen's University of Belfast | Unionist Party |