Cork Borough was a parliamentary constituency represented in Dáil Éireann, the lower house of the Oireachtas (the Irish parliament), from 1921 to 1969.
The method of election was proportional representation by means of the single transferable vote (PR-STV).
Following the death of Labour Party TD Seán Casey, a by-election was held on 9 November 1967.
The seat was won by the Fianna Fáil candidate Sheila Galvin, widow of the deceased TD.
Following the resignation of Cumann na nGaedheal TD Alfred O'Rahilly, a by-election was held on 19 November 1924.