North Leitrim was a parliamentary constituency in Ireland. From 1885 to 1918 it returned one Member of Parliament (MP) to the House of Commons of the United Kingdom of Great Britain and Ireland.

Prior to the 1885 United Kingdom general election and after the dissolution of Parliament in 1918 the area was part of the Leitrim constituency.

This constituency comprised the northern part of County Leitrim.

1885–1918: The baronies of Dromahair and Rosclogher, and that part of the barony of Leitrim contained within the parish of Kiltubbrid and the townlands of Acres, Aghagrania, Aghnagollop, Ardcolum, Barnameenagh, Barnameenagh West, Blackrock, Carrickbaun, Carricknabrack, Corlough, Corloughlin, Cormeeltan, Cormongan, Cornamuddagh, Cornashamsoge, Corrachuill, Corryard, Creenagh, Crey, Derrintober, Derrintonagh, Derryhallagh, Derrynaseer, Derryteigeroe, Dorrusawillin, Dristernaun, Drumcoora, Drumcroman, Drumderg, Drumhalwy, Drumduff, Drumshanbo, Greaghfarnagh, Greaghnaguillaun, Largan, Largan Mountain, Lavaur, Mahanagh, Moneynure, Murhaun, Roscunnish, Shancurry and Sheskinacurry in the parish of Kiltoghert.