Kaiwhaiki is a settlement upriver from Whanganui, New Zealand.
Kaiwhaiki in the 1840s was a small pàof a two to three dozen people. In Ronaldson's 1847 survey, the inhabitants were noted as being of the hapà « NgÃÂti Rongomaitawhiri. In 1852 Kaiwhaiki became the first settlement on the Whanganui River to host a Catholic mission. By the early 1860s, it was described as a "large pa" and its population were mostly Kingites, opposed to the colonial government.
Kaiwhaiki is the home of the NgàPaerangi hapà « of the iwi Te ÃÂti Haunui-a-PÃÂpÃÂrangi; their unique twin-gabled wharenui Te Kiritahi was built in 1912. It was the birthplace of composer and choirmaster Morvin Simon, who led the nationally known Kaiwhaiki-based kapa haka group Te Matapihi.
A quarry near Kaiwhaiki supplied the shellrock used to build the Durie Hill war memorial tower in Whanganui.
Kaiwhaiki currently has three marae:
In October 2020, the Government committed $377,123 from the Provincial Growth Fund to restore and renovate the Whangaehu Marae, creating 24 jobs.