Kildare South is a parliamentary constituency represented in Dáil Éireann, the lower house of the Irish parliament or Oireachtas.

The constituency elects four deputies (Teachtaí Dála, commonly known as TDs) on the electoral system of proportional representation by means of the single transferable vote (PR-STV).

[2] For the 2024 general election, the Electoral (Amendment) Act 2023 defines the constituency as:[3] the electoral divisions of Ballitore, Belan, Carrigeen, Castledermot, Graney, Inchaquire, Moone, Narraghmore, in the former Rural District of Athy No.

^ *: Outgoing TD Seán Ó Fearghaíl was Ceann Comhairle at the dissolution of the 33rd Dáil and will be returned automatically.

Seán Ó Fearghaíl was Ceann Comhairle at the dissolution of the 32nd Dáil and therefore deemed to be returned automatically.