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 NameConstituency PartyMilne BarbourAntrim Unionist PartyMaj. Hon. Robert William O'NeillAntrim Unionist PartyGeorge Boyle HannaAntrim Unionist PartyRobert CrawfordAntrim Unionist PartyRobert MegawAntrim Unionist PartyJohn Fawcett GordonAntrim Unionist PartyJoseph DevlinAntrim Nationalist Party Richard BestArmagh Unionist PartyMichael CollinsArmagh Sinn FéinMaj. David ShillingtonArmagh Unionist PartyJohn Dillon NugentArmagh Nationalist Party Sir Dawson BatesEast Belfast Unionist PartyCapt. Herbert DixonEast Belfast Unionist PartyThompson DonaldEast Belfast Unionist PartyJames Augustine DuffEast Belfast Unionist PartyLloyd CampbellNorth Belfast Unionist PartySamuel McGuffinNorth Belfast Unionist PartyWilliam GrantNorth Belfast Unionist PartyRobert McKeownNorth Belfast Unionist PartyThomas MolesSouth Belfast Unionist PartyHugh PollockSouth Belfast Unionist PartySir Crawford McCullaghSouth Belfast Unionist PartyJulia McMordieSouth Belfast Unionist PartyThomas Henry BurnWest Belfast Unionist PartyRobert LynnWest Belfast Unionist PartyWilliam TwaddellWest Belfast Unionist PartyJoseph DevlinWest Belfast Nationalist Party Sir James Craig, BtDown Unionist PartyÉamon de ValeraDown Sinn FéinJ. M. AndrewsDown Unionist PartyThomas LaveryDown Unionist PartyCapt. Hon. Harry MulhollandDown Unionist PartyRobert McBrideDown Unionist PartyThomas McMullanDown Unionist PartyPatrick O'NeillDown Nationalist Party Arthur GriffithFermanagh and Tyrone Sinn FéinEdward ArchdaleFermanagh and Tyrone Unionist PartyWilliam CooteFermanagh and Tyrone Unionist PartySeán MilroyFermanagh and Tyrone Sinn FéinWilliam Thomas MillerFermanagh and Tyrone Unionist PartyJames CooperFermanagh and Tyrone Unionist PartySeán O'MahonyFermanagh and Tyrone Sinn FéinThomas HarbisonFermanagh and Tyrone Nationalist Party Sir Robert AndersonLondonderry Unionist PartyEoin MacNeillLondonderry Sinn FéinDehra ChichesterLondonderry Unionist PartyJohn Martin MarkLondonderry Unionist PartyGeorge LeekeLondonderry Nationalist Party Dr John CampbellQueen's University of Belfast Unionist PartyProf. Robert JohnstoneQueen's University of Belfast Unionist PartyJohn Hanna RobbQueen's University of Belfast Unionist PartyDr Hugh Morrison Queen's University of Belfast Unionist Party
Notes Joseph Devlin was elected for both Antrim and Belfast West, but did not take either seat in parliament. Maj. Hon. Robert William O'Neill was Speaker of the House from 7 June 1921 to 2 May 1929.
Changes William Twaddell (UUP, Belfast West) was assassinated by the IRA on 22 May 1922. The by-election on 2 May 1923 was won by Philip James Woods (Independent Unionist).
References Biographies of Members of the Northern Ireland House of Commons