Derryragh (from Irish: Doire Rátha meaning ‘The Oakwood of the Fort’) 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.
Derryragh is bounded on the north by Porturlan and Killywillin townlands, on the west by Ballymagauran townland, on the south by Sruhagh and Gorteen, Templeport townlands and on the east by Camagh townland. Its chief geographical features are Ballymagauran Lough, streams, five spring wells, dug wells and forestry plantations.
Derryragh is traversed by the national secondary R205 road (Ireland), minor public roads and rural lanes.
The townland covers 208 statute acres.
Although J.P. Dalton suggested that the fort on top on Derryragh hill was the centre of the worship of the pagan idol Crom Cruach, there is no evidence to support this. Kevin White carried out an archaeological survey and found no such evidence [7] and there is no mention in the Patrician sources or in the Book of Magauran to support such a suggestion. The fact that there are five spring wells in the townland and none of them are associated with Saint Patrick, unlike others in the parish, is also a negative point. All the evidence points to the Killycluggin Stone being the Crom idol. At best the Darragh fort was an assembly or camping place for the Royal visitors on their pilgrimage to the idol. The placename may also be a corruption of ‘Doire Rí’ meaning the King’s Oakwood. The only tradition connected with the fort is about a fairy living there. A book published in 1912 entitled "Folk Tales of Breffny" by a Templeport author Mrs Augusta Wardell, née Hunt, under the pen name 'Bunda Hunt' gives a version of the tale which she learned it at the age of seven from an old man named Dolan. It goes as follows-