Ōkiwi is a small settlement and rural community at the head of the Whangapoua Estuary, in Whangapoua Bay, on Great Barrier Island in New Zealand's Hauraki Gulf.^[1]

Facilities include Okiwi School, one of three schools on the island, all primary schools. Next to the school is Okiwi Park, with a public toilet, barbeque area, cycling trail and stream. The park has old tōtara and pūriri trees that were spared by farmers, alongside some new forest.^[2] The Church of Jesus Christ of Latter-day Saints has a church building.^[3] The Department of Conservation's base for Great Barrier Island was opened at Okiwi in 2016, replacing their office at Port Fitzroy, which was damaged by a cyclone on 10 June 2014 and cut off from the rest of the island for six weeks.^[4]

The Okiwi Basin area is a basin of farmland that can be seen from Palmer's Track, a walking track that runs from Windy Canyon to Mount Hobson.^[5] The fertile area is used for organic and small-scale growing,^[6] including the Okiwi Passion market garden and shop.^[7][8]

Okiwi Airfield, Whangapoua Beach and a camping ground are east of the settlement.^[9][1]

Ngātiwai have traditionally lived in the area.^[10]

Between 2015 and 2019, the Aotea / Great Barrier Island Local Board investigated establishing a cemetery at Ōkiwi or Claris, opting to establish it in Claris.^[11]