Government of the 18th Dáil
Eighteenth Dáil - (21 April 1965-22 May 1969)
Eleventh Government of Ireland - (21 April 1965-10 November 1966)
- Sean Lemass, FF - An Taoiseach
- Frank Aiken, FF - An Tánaiste and Minister for External Affairs
- Erskine Hamilton Childers, FF - Minister for Transport & Power
- Jack Lynch, FF - Minister for Finance
- Neil Blaney, FF - Minister for Local Government
- Kevin Boland, FF - Minister for Social Welfare
- Micheál Ó Moráin, FF - Minister for Lands & the Gaeltacht
- Michael Hilliard, FF - Minister for Defence
- Patrick Hillery, FF - Minister for Industry & Commerce (21.4.65 - 13.7.66)
- Minister for Labour (13.7.66 - 10.11.66)
- Charles Haughey, FF - Minister for Agriculture
- Brian Lenihan, FF - Minister for Justice
- Joseph Brennan, FF - Minister for Posts & Telegraphs
- Donagh O'Malley, FF - Minister for Health (21.4.65 - 13.7.66)
- Minister for Education (13.7.66 - 10.11.66)
- George Colley, FF - Minister for Education (21.4.65 - 13.7.66)
- Minister for Industry & Commerce (13.7.66 - 10.11.66)
- Seán Flanagan, FF - Minister for Health (13.7.66 - 10.11.66)
Twelfth Government of Ireland - (10 November 1966-
2 July 1969)
- Jack Lynch, FF - An Taoiseach
- Frank Aiken, FF - An Tánaiste and Minister for External Affairs
- Erskine Hamilton Childers, FF - Minister for Transport & Power and Posts & Telegraphs
- Neil Blaney, FF - Minister for Agriculture & Fisheries
- Kevin Boland, FF - Minister for Local Government
- Micheál Ó Moráin, FF - Minister for Lands & the Gaeltacht (10.11.66 - 26.3.68)
- Minister for Justice (27.3.68 - 2.7.69)
- Michael Hilliard, FF - Minister for Defence
- Patrick Hillery, FF - Minister for Labour
- Charles Haughey, FF - Minister for Finance
- Brian Lenihan, FF - Minister for Justice (26.3.68 - 2.7.69)
- Joseph Brennan, FF - Minister for Social Welfare
- Donagh O'Malley, FF - Minister for Education (10.11.66 - 26.3.68: died)
- George Colley, FF - Minister for Industry & Commerce
- Pádraig Faulkner, FF - Minister for Lands & the Gaeltacht (27.3.68 - 2.7.69)
- Seán Flanagan, FF - Minister for Health