Narrow Water Castle

54°06′53″N 6°16′58″W / 54.1148°N 6.2828°W / 54.1148; -6.2828

Narrow Water Castle, looking south (the road is to the left of the picture)

Narrow Water Castle (Irish: Caisleán an Chaoil; Ulster-Scots: Narra Wattèr Castle), also known locally as Narrow Water Keep, is a 16th-century tower house and bawn near Warrenpoint in Northern Ireland. It was occupied by the Hall family from the 17th until the 19th century, when they built a large Elizabethan revival-style mansion, also known as Narrow Water Castle, within the same townland.

The tower house is beside the A2 road and on the County Down bank of the Clanrye (Newry) River, which enters Carlingford Lough 1 mile (1.6 km) to the south. It is a historic monument in state care, within Newry and Mourne District Council district, in the townland of Narrow Water. The 16th-century tower house (keep) was given into state care in 1956. The 19th-century mansion remains a private residence of the Hall family.