54°15′36″N 5°36′32″W / 54.260°N 5.609°W
Jordan's Castle (Irish: Caisleán MacSiurtain; Ulster Scots: Joardan's Kessel[1]) is a castle situated in Ardglass, County Down, Northern Ireland. The tower house known as Jordan's Castle is a State Care Historic Monument sited in the townland of Ardglass, in the Newry, Mourne and Down District Council area, at grid ref: J5601 3713.[2] It stands close to the junction of Kildare and Quay Streets in Ardglass and commands the harbour.[3]