Castlecliff

Castlecliff
A café in Castlecliff
Interactive map of Castlecliff
Coordinates: 39°56′35″S 174°59′37″E / 39.943031°S 174.993740°E / -39.943031; 174.993740
CountryNew Zealand
CityWhanganui
Local authorityWhanganui District Council
Area
 • Land865 ha (2,140 acres)
Population
 (June 2025)
 • Total
4,260
 • Density492/km2 (1,280/sq mi)
Kai Iwi Westmere Tawhero
Castlecliff
Gonville
(South Taranaki Bight) (Whanganui River mouth)

Castlecliff is a suburb of Whanganui, in the Whanganui District and Manawatū-Whanganui region of New Zealand's North Island. The name was given by the Harbour Board, on the suggestion of the future Prime Minister, John Ballance, when it established the township on what were described as "barren sandhills" in 1882. Many of the streets were named after Harbour Board members. The northern harbour breakwater extended 900 ft (270 m) by 1885. The freezing works was built in 1891.