1984 Laois–Offaly by-election
14 June 1984
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A by-election was held in the Dáil constituency of Laois–Offaly in Ireland on Thursday, 14 June 1984. It followed the death of Fianna Fáil TD Bernard Cowen died on 24 January 1984.
A Fianna Fáil motion to move the writ on 29 February 1984 was defeated by the Fine Gael–Labour government. A second motion to move the writ on 17 May 1984 was unopposed. The by-election was held on 14 June 1984, the same day as the European Parliament elections.
The election was won by the Brian Cowen of Fianna Fáil, son of the deceased TD.