Kilcooley Abbey is a Cistercian abbey close to the village of Gortnahoe in Tipperary, Ireland. The abbey is located within the grounds of the Kilcooley Estate. This abbey dates from 1182 when Donal Mor O’Brien granted lands to the Cistercians, to build an abbey here. The abbey which is a sister house to both Jerpoint Abbey and Holy Cross Abbey, is considered to be a hidden gem, tucked away in this remote corner of Co. Tipperary. The Abbey is found inside a private walled estate.
After the Reformation, Kilcooley passed into the possession of the Earl of Ormond. It was granted to the English-born judge Sir Jerome Alexander in the 1630s and through his daughter, Elizabeth, it passed by marriage to the Barker baronets of Bocking Hall, the last of whom died in 1818.
The main part of the abbey consists of the Entrance Chamber, the Church, the Tower and the Sacristy. The Entrance Chamber has a well carved baptismal font on its south wall. The nave of the church is still roofed, but the rest of it is out in the open. The church has two large carved windows on its east and west side. The chancel contains two stone tombs and a stone altar. One of these tombs is that of the knight Piers Fitz Oge Butler. His tomb records his death as taking place in 1526 and has some carvings of 10 apostles on the side of it carved by Rory O Tunney, who is also noted for his work in Jerpoint Abbey. On top of the Butler tomb there is the effigy of a knight with a dog curled up at his feet. The Sacristy is entered through a carved archway that has many carvings, such as a scene depicting the crucifixion and a mermaid holding a mirror, which was meant to depict vanity. Roger Stalley suspects this screen wall may represent the entrance to a private Butler chapel, as two Butler shields are depicted. The east end of the nave is notable, because seats for the officiating clergy have been carved into the crossing piers. The work here is very fine, but does not have the sculptural finesse of nearby Holycross Abbey.
Outside the abbey there is also a beehive shaped ruin. It is not known whether this was used as a Columbarium to store ashes or a dove-cote for pigeons. But most probably it was a dove-cote since there is a 3-foot (0.91 m) wide hole in the ceiling from which they would have entered and left. Also outside the abbey is the Infirmary which is still in a fairly good condition although access to the roof of it is blocked.
The Cloisters of the abbey are long gone with only one column still remaining. The path of the cloisters though still remains with a pebbled walkway around the grass square. The centre even has a large tree growing in it. Beside the Cloisters the Parlour and Chapter House are still there. Also the Calefactory (Warming room) still remains but without a roof. And on the south side of the Cloisters the Monks Dining Hall still stands. Although the dining hall has no roof, it still has a spiral staircase, but this has been barred up because of an ever increasing Irish-to-American(sue-happy)society. One can also find all the second floor rooms — such as the Monks Dorms and the Main Tower — locked up by a certain Office of Public Works. The Parlour, Chapter House, and Calefactory are also barred.
Kilcooly Abbey was also used in the making of the film "Excalibur" by John Boorman, which is based on the tale of King Arthur and the knights of the round table. There is a pyramid structure on the grounds of the abbey.
- John Butler of Clonamicklon (died 1330)