A Dáil by-election was held in the constituency of Cork Borough in Ireland on Thursday, 2 August 1956, to fill a vacancy in the 15th Dáil. It followed the death of Fianna Fáil Teachta Dála (TD) Patrick McGrath on 20 June 1956.
The writ of election to fill the vacancy was agreed by the Dáil on 10 July 1956.
The by-election was won by the Fianna Fáil candidate John Galvin.
Result
References