Events during the year 1931 in Northern Ireland.
Incumbents
Governor - The Duke of Abercorn
Prime Minister - James Craig
Events
9 January – Ulster Canal abandoned. Ulster Protestant League established.
Sport
Football
The Northern Ireland international soccer team change the colour of their shirt from blue to green. Irish League Winners: Glentoran
Irish Cup
Winners: Linfield 3 - 0 Ballymena United
Births
24 January – Charles Harding Smith, loyalist paramilitary
15 February – John Erritt, Deputy Director of the British Government Statistical Service (died 2002). 8 April – Paddie Bell, folk singer (died 2005). 9 April – Patrick Walsh, Bishop of Down & Connor (1991- ). 15 April – Sir Kenneth Bloomfield, head of the Northern Ireland Civil Service and member of the Northern Ireland Victims Commission and the Independent Commission for the Location of Victims' Remains. 25 April – James Fenton, Ulster Scots poet (died 2021). 15 June – Martin Smyth, Unionist politician and minister of the Presbyterian Church in Ireland. 28 June – John Morrow, Presbyterian minister and peace activist (died 2009). 29 June – Brian Hutton, Baron Hutton, Law Lord. 4 July – Stephen Boyd, actor (died 1977). 5 August – Billy Bingham, international footballer and manager (died 2022). 25 October – Jimmy McIlroy, international footballer. 31 December – Bob Shaw, science fiction novelist (died 1996).