1934 in Northern Ireland
- 20 January - The funeral of the veteran nationalist Member of Parliament, Joseph Devlin, takes place in Belfast.
- 24 April - In a debate in the Parliament of Northern Ireland, the Prime Minister, Lord Craigavon, states "All I boast of is that we are a Protestant Parliament and a Protestant State." (often misquoted as "A Protestant Parliament for a Protestant People").
- 29 May - King's Hall, Belfast, the largest exhibition venue in Northern Ireland, is opened.
- The Earl of Shaftesbury presents Belfast Castle to the City of Belfast.
Arts and literature
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- Winners: Linfield
- Ballymena Football Club is renamed Ballymena United F.C..
- 20 January - Josias Cunningham, stock broker, farmer and politician (died 2000).
- 3 March - Peter Brooke, 9th Secretary of State for Northern Ireland.
- 8 April - Wilson Clyde, former Democratic Unionist Party politician.
- 14 May - Francis Fee, cricketer.
- 23 May - Syd Millar, former international rugby player and chairman of the International Rugby Board.
- 28 June - Robert Carswell, Baron Carswell, barrister and judge.
- 4 July - James Hamilton, 5th Duke of Abercorn, soldier, politician and peer.
- 18 August - Ronnie Carroll, singer and entertainer (died 2015).
- 14 November - Catherine McGuinness, President of the Law Reform Commission and former justice of the Supreme Court of Ireland.
Full date unknown
- Eileen Paisley, Baroness Paisley of St George's, Democratic Unionist Party politician and life peer.
- 18 January - Joseph Devlin, Nationalist politician and MP in the British House of Commons and in Northern Ireland (born 1872).
- April - Robert McCall, lawyer (born 1849).