- a county in S Northern Ireland. 489 sq. mi. (1,267 sq. km). County seat: Armagh.
- an administrative district in this county. 261 sq. mi. (676 sq. km).
- a historical county of S Northern Ireland: in 1973 it was replaced for administrative purposes by the districts of Armagh and Craigavon. Area: 1326 sq km (512 sq miles)
- a district in Northern Ireland, in Co Armagh. Pop: 55 449 (2003 est). Area: 667 sq km (258 sq miles)
- a town in S Northern Ireland, in Armagh district, Co Armagh: seat of Roman Catholic and Protestant archbishops. Pop: 14 590 (2001)