The 1987 Irish general election to the 25th Dáil was held on Tuesday, 17 February, four weeks after the dissolution of the 24th Dáil on 20 January by President Patrick Hillery, on the request of Taoiseach Garret FitzGerald. A continuing crisis over public finance and a rejection of the budget had led to the Labour Party withdrawing from the Fine Gael–led coalition government. The general election took place in 41 Dáil constituencies throughout Ireland for 166 seats in Dáil Éireann, the house of representatives of the Oireachtas. There were minor amendments to constituency boundaries under the Electoral (Amendment) Act 1983.

The Taoiseach is the head of government or prime minister of Ireland. The office is appointed by the President of Ireland upon the nomination of Dáil Éireann and the office-holder must retain the support of a majority in the Dáil to remain in office.