1977 Irish general election

1977 Irish general election

← 1973 16 June 1977 1981 →
← outgoing members elected members →
148 seats in Dáil Éireann[a] 75 seats needed for a majority
Turnout	76.3% 0.3pp
First party Second party Third party   Leader Jack Lynch Liam Cosgrave Brendan Corish Party Fianna Fáil Fine Gael Labour Leader since 9 November 1966 21 April 1965 2 March 1960 Leader's seat Cork City Dún Laoghaire Wexford Last election 69 seats, 46.2% 54 seats, 35.1% 19 seats, 13.7% Seats won 84 43 17 Seat change 15 12 3 Percentage 50.6% 30.5% 11.6% Swing 4.4% 4.6% 2.1%
Percentage of seats gained by each of the three major parties, and number of seats gained by smaller parties and independents.
Taoiseach before election Liam Cosgrave Fine Gael Taoiseach after election Jack Lynch Fianna Fáil

The 1977 Irish general election to the 21st Dáil was held on Thursday, 16 June, following the dissolution of the 20th Dáil on 25 May by President Patrick Hillery on the request of Taoiseach Liam Cosgrave. The general election took place in 42 Dáil constituencies throughout Ireland for 148 seats in Dáil Éireann, the house of representatives of the Oireachtas, an increase of four seats. There was a significant revision of constituencies under the Electoral (Amendment) Act 1974. Jack Lynch led Fianna Fáil to a landslide election win, clearly defeating the outgoing Fine Gael–Labour government.

The 21st Dáil met at Leinster House on 5 July to nominate the Taoiseach for appointment by the president and to approve the appointment of a new government of Ireland. Jack Lynch was appointed Taoiseach, forming the 15th government of Ireland, a single-party majority Fianna Fáil government. It was the last election to result in a single-party majority government.

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