St Laserian's Cathedral, Old Leighlin, previously the cathedral of the Diocese of Leighlin, is now one of the six cathedral churches in the Diocese of Cashel and Ossory of the Church of Ireland. It is situated on the site of a mediaeval monastery in the village of Old Leighlin, County Carlow, Ireland, some 12 km south of Carlow town in the ecclesiastical province of Dublin.

Saint Gobhan has long been linked with the parish of Seagoe – recorded for instance as Teach dho-Ghobha – in County Armagh, Ireland.