Cloncoohy is a townland in the Civil Parish of Tomregan, Barony of Knockninny, County Fermanagh, Northern Ireland.
The townland name is an anglicisation of the Gaelic placename “Cluain Cuaiche” which means ‘The Meadow of the Cuckoo’.
It is bounded on the north by Carickaleese and Dernagore townlands and on the east, south & west by the international border with County Cavan and the Republic of Ireland. Its chief geographical features are Cloncoohy Lough, the Shannon-Erne Waterway and a drumlin hill reaching to 60 metres above sea-level.
The townland is traversed by Cloncoohy Lane.
Cloncoohy covers an area of 105 statute acres.
The townland formed part of the ballybethagh of Calvagh in medieval times. At the beginning of the 17th century it was owned jointly by Bryan McPhilip O’Reyly and Edward Rutlidge but was confiscated by the Crown in the 1609 Ulster Plantation and it formed part of the half-territory of Aughrin which was granted to Sir Hugh Culme in 1610. Culme later relinquished his claim to the Crown, perhaps because there was confusion at the time as to whether the townland formed part of County Fermanagh or County Cavan. By an order of the Lord Deputy dated 14 October 1612 the townland was granted, inter alia, to Lady Margaret O’Neill, the widow of Sir Hugh Maguire deceased. In 1641 and also in 1670 it was owned by Sir William Balfour (general).
The Tithe Applotment Books for 1827 list the following tithepayers in the townland- Murphy, McKenna, Reilly.
The population of the townland in the 1841 census was 83.
Griffith's Valuation of 1857 lists ten occupiers in the townland.
In the 1901 census of Ireland, there are nine families listed in the townland.
In the 1911 census of Ireland, there are eight families listed in the townland.
The only historic site in the townland is Cloncoohy Bridge.