Fermoy is a town on the River Blackwater in east County Cork, Ireland. As of the 2022 census, the town and environs had a population of approximately 6,700 people. It is located in the historical barony of Condons and Clangibbon, and is in the Dáil constituency of Cork East.
The town's name is of Irish origin and refers to a Cistercian abbey founded in the 13th century. This abbey is believed to have been founded by Domnall Mór Ua Briain, King of Thomond.