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

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

[16] ^ *: Outgoing TD Séamus Kirk was Ceann Comhairle at the dissolution of the 30th Dáil and therefore deemed to be returned automatically.

Pádraig Faulkner was Ceann Comhairle at the dissolution of the 21st Dáil and therefore deemed to be returned automatically.

The seat was won by the Fine Gael candidate George Coburn, son of the deceased TD.