South Sligo was a parliamentary constituency in Ireland, which returned one Member of Parliament (MP) to the House of Commons of the Parliament of the United Kingdom, elected on a system of first-past-the-post, from 1885 to 1922.
Prior to the 1885 general election the area was part of the two-seat County Sligo constituency.
From 1922, on the establishment of the Irish Free State, it was not represented in the UK Parliament.
Sexton is also elected MP for Belfast West and opts to sit there, causing a by-election.
This article about a Historic Westminster constituency in Ireland is a stub.