Fermoy (Irish: Mainistir Fhear Maí;[l 1] formerly also Armoy[1]) is a historical barony in County Cork in Ireland.
[l 1][1] It is bordered by the baronies of Orrery and Kilmore to the north-west; Duhallow to the west; Barretts to the south-west; Barrymore to the south; Condons and Clangibbon to the east; and Coshlea, County Limerick to the north.
Baronies were created after the Norman invasion of Ireland as administrative divisions of counties.
[1] Following the Norman invasion, the territory was divided, with the part corresponding to the modern barony claimed by the Flemings and by marriage passing to the Roches, who were styled Lords of Fermoy or Viscount Fermoy, and for whom Castletownroche is named.
[4] Settlements in the barony include Ballindangan,[l 3] Ballydahin,[l 3] Ballyhooly,[l 4] Castletownroche,[l 4] Doneraile,[l 4] Glanworth,[l 4] Killavullen,[l 4] Knockraha,[l 4] Mallow,[l 4] Newtown Ballyhay,[l 3] New Twopothouse,[l 3] and Shanballymore;[l 4] Civil parishes wholly or partly in the barony are: Ardskeagh, Ballydeloughy, Ballyhay, Ballyhooly, Bridgetown, Castletownroche, Caherduggan, Carrigdownane, Carrigleamleary, Clenor, Derryvillane, Doneraile, Dunmahon, Farahy, Glanworth, Imphrick, Kilcrumper, Kilcummer, Kildorrery, Kilgullane, Killathy, Killeenemer, Kilquane, Litter, Mallow, Monanimy, Mourneabbey, Rahan, St. Nathlash, Templeroan, and Wallstown.