Fermanagh (disambiguation)
Fermanagh was a kingdom of Gaelic Ireland, associated geographically with present-day County Fermanagh.

Fermanagh  may also refer to:

 County Fermanagh, one of the six counties of Northern Ireland
 County Fermanagh (Parliament of Ireland constituency) until 1800
 Fermanagh (UK Parliament constituency) 1801–85
 Fermanagh GAA, intercounty tem
 Fermanagh District Council, one of the 26 district councils of Northern Ireland, covering a slightly larger area than the county
 Fermanagh Township, Juniata County, Pennsylvania, USA
 Viscount Fermanagh junior title of Earl Verney
 Baron Fermanagh junior title of Earl Erne