- a county in SW Northern Ireland. 653 sq. mi. (1,691 sq. km). County seat: Enniskillen.
- an administrative district including this county. 715 sq. mi. (1,851 sq. km).
- a district and historical county of SW Northern Ireland: contains the Upper and Lower Lough Erne. Pop: 58 705 (2003 est). Area (excluding water): 1700 sq km (656 sq miles)
