- a county in Leinster province, in the NE Republic of Ireland. 317 sq. mi. (820 sq. km). County seat: Dunkalk.
- a county of NE Republic of Ireland, in Leinster province on the Irish Sea: the smallest of the counties. County town: Dundalk. Pop: 101 821 (2002). Area: 821 sq km (317 sq miles)
