County Leitrim (pronounced , ) is a county in Ireland. It is in the province of Connacht and is part of the Border Region. It is named after the village of Leitrim and is based on the historic Gaelic territory of West Breifne (Bréifne). Leitrim County Council is the local authority for the county, which has a population of 31,798 according to the 2011 census.