Government of the 18th Dáil

There were two governments in the 18th Dáil, which was elected at the 1965 general election held on 7 April 1965. Both were single-party Fianna Fáil governments, which had been in government since the 1957 election. The 11th government of Ireland (21 April 1965 – 10 November 1966) was led by Seán Lemass as Taoiseach and lasted for 569 days. The 12th government of Ireland (10 November 1966 – 2 July 1969) was led by Jack Lynch as Taoiseach and lasted for 966 days.