Cork South was a parliamentary constituency represented in Dáil Éireann, the lower house of the Irish parliament or Oireachtas from 1948 to 1961.
The constituency elected 3 deputies (Teachtaí Dála, commonly known as TDs) to the Dáil, on the system of proportional representation by means of the single transferable vote (PR-STV).
The constituency was created under the Electoral (Amendment) Act 1947, for the 1948 general election to Dáil Éireann.
[1] It succeeded the constituency of Cork South-East.
It was abolished under the Electoral (Amendment) Act 1961, when it was partially replaced by the new constituency of Cork South-West.