Doon (Irish: Dún Bleisce) is a village in east County Limerick, Ireland, close to the border of County Tipperary. It is also a civil parish in the historic barony of Coonagh. and is an ecclesiastical parish in the Roman Catholic Archdiocese of Cashel and Emly. The name Doon, deriving from the common Irish place name term Dún meaning "fort", can also be found as the name of various different townlands in Ireland.