Keenagh (from Irish: Caonach meaning 'A Mossy Place') is a townland in the civil parish of Templeport, County Cavan, Ireland. It lies in the Roman Catholic parish of Templeport and barony of Tullyhaw.
Keenagh is bounded on the north by Kilsallagh and Munlough North townlands, on the west by Cor, Templeport townland, on the south by Lissanover townland and on the east by Munlough South townland. Its chief geographical features are a wood, a stream and a dug well.
Keenagh is traversed by minor public roads and rural lanes.
The townland covers 62 statute acres.
The 1609 Baronial Map depicts the townland as Kennagh.
The 1665 Down Survey map depicts it as Knough.
Keenagh formed part of the termon or hospital lands belonging to Templeport Church and so its history belongs to the ecclesiastical history of the parish. It would have belonged to the parish priest and the erenach family rather than the McGovern chief. In the 16th century these ecclesiastical lands in Templeport were seized in the course of the Reformation in Ireland and kept first by the English monarch and then eventually granted to the Anglican Bishop of Kilmore.
An Inquisition held in Cavan Town on 20 June 1588 valued the total vicarage of Templeport at £10.
An Inquisition held in Cavan Town on 19 September 1590 found the termon or hospital lands of Templeport to consist of four polls of land at a yearly value of 4 shillings. Keenagh was one of these four polls.
By grant dated 6 March 1605, along with other lands, King James VI and I granted a lease of the farm, termons or hospitals of Tampleporte containing 4 pulls for 21 years at an annual rent of 10 shillings to Sir Garret Moore, 1st Viscount Moore. Keenagh was one of these pulls.