BLARNEY, a castle and town in County Cork, Ireland, 5m. north-west of the City of Cork on the Great Southern railway. Pop. (1926) 699. It manufactures tweed. The castle, built, c. 1446, by Cormac McCarthy, has walls as much as i8ft. thick. The "Blarney Stone" in the castle is reputed to confer eloquence on those who kiss it ; and the fame of the castle is also bound up with the civil history of the county and the War of the Great Rebellion.