The ruins of Moor Abbey, in the Glen of Aherlow in County Tipperary, date from the 15th century when it was founded for Franciscan Friars on the site of an earlier foundation thought to date from the 13th century, which had burned down. The abbey saw a number of turbulent periods and also came to the attention of Cromwell in the 1650s, but the friars always managed to return after each episode, and remained until the 18th century.

The present day ruins consist of a beautifully preserved nave and chancel, separated by a tall bell tower where a sedilia remains. The abbey retains some beautiful stone arches, carvings, features and stonework along with a double piscina for washing liturgical vessels. An information board at the abbey gives an informative summary of historical events that took place here.

The small adjacent car park, and picnic benches opposite the abbey make for a great stopping point for a short stroll around the historical architecture of the abbey, and enjoyment of the views across the surrounding countryside and towards the Galtee Mountains.