Castle Coole (pronounced cool, from Irish: Cúl) is a townland (of 529 acres)[2] and a late-18th-century neo-classical mansion situated in Enniskillen, County Fermanagh, Northern Ireland. Set in a 1200-acre (5 km²) wooded estate, it is one of three properties owned and managed by the National Trust in County Fermanagh, the others being Florence Court and the Crom Estate.