- a county in Leinster in the N central Republic of Ireland. 681 sq. mi. (1,765 sq. km). County seat: Mullingar.
- a county of N central Republic of Ireland, in Leinster province: mostly low-lying, with many lakes and bogs. County town: Mullingar. Pop: 71 858 (2002). Area: 1764 sq km (681 sq miles)
