Ngaio (Māori: [ˈŋaio], colloquially /ˈnaɪoʊ/ NY-oh,[2]) is an inner suburb of Wellington, the capital city of New Zealand.

The area was administratively part of a separate local authority called the Onslow Borough Council which amalgamated with Wellington City in 1919.

Ngaio contains a library, multi-purpose hall, pharmacy, petrol station, two cafés, Plunket rooms, dentist, medical centre, tennis courts and a variety of small shops.

[6] The library offers internet access, free Wi-Fi, word processing, printing and faxing.

[7] The Ngaio town hall offers a venue for community services, sports, performances, cultural and private events.

The hall contains a stage, kitchen, drop in centre and the Ngaio toy library.

[18] The suburb is served by the Johnsonville Branch commuter railway which connects it to the central city.

[20] Heavy rains in July 2017 resulted in a large landslide, with boulders and rubble completely covering the road.

[23] The Wellington City Council planned to extend the shipping container wall in preparation for construction of a permanent solution in late 2019.

The school acts as a Civil defense centre set up by the Wellington Regional Emergency Management Office (WREMO) to provide support and information to their surrounding communities.

The Ngaio Union Church has modern buildings and serves the Methodist and Presbyterian community.

[39] Also the Onslow Community Church which has a recently built modern hall in Ngatoto Street near the Ngaio/Khandallah boundary.

The mill was built close to the present day junction of Crofton Road and Kenya Street.

The mill was described by Edward Jerningham Wakefield in his book, "Adventure in New Zealand from 1839 to 1844: With Some Account of the Beginning of the British Colonization of the Islands": "In the bottom of a thickly wooded valley, only accessible over a steep ridge, a natural fall in the narrow rocky gully of the stream afforded great facilities for erecting a dam.

The open sides of the workshop displayed this curious work of art in the midst of nature's wildest scenery...

The stern craggy sides of the gully might be imagined to frown upon so strange a neighbor as the fretting wheel.

Two or three log-huts under the forest sent up their curl of smoke; while the neat housewives, with their flaxen-haired children, stood at the doors to receive with joyful pride the praises bestowed by visitors on the untiring industry of their husbands.

"[42] The mill was taken over by John Chew in 1863, who built a cottage made of local tōtara, rimu and kauri.

The land and house owned by Fox were sold in 1862 to Charles Abraham, Bishop of Wellington.

The college drew pupils from leading Wellington families and the southern half of the North Island.

This was to placate his family who were appalled with the city's sanitation[47] after his young son Cranley caught typhoid shortly after moving to Wellington.