1830 in New Zealand

The following lists events that happened during 1830 in New Zealand.

Incumbents

10 January – The first whaling ship, the Antarctic, enters Lyttelton Harbour, which Captain Morell calls 'Cook's Harbour'.
3 February – John Guard arrives in Sydney with a cargo of whale oil, the first to be shipped from the South Island.
21 April – Phillip Tapsell is married to Karuhi, sister of a Ngā Puhi chief, by Samuel Marsden.
31 July – William Yate returns from 6 months 'training' in printing at Sydney with a printing press. His attempts at printing are not particularly successful.
19 August – Captain William Stewart leaves for Kapiti Island, where Te Rauparaha has promised him a cargo of flax in return for transporting a large Ngāti Toa party to Akaroa.
26 October – Te Rauparaha and 120 Ngāti Toa warriors leave Kapiti Island for Akaroa on the hired brig Elizabeth.
6 November – After 3 or 4 days hidden aboard the Elizabeth while anchored in Akaroa, Te Rauparaha and his warriors attack and massacre a village of local Kāi Tahu, and then cannibalise them.
November
*Phillip Tapsell settles in Maketu in the Bay of Plenty and begins trading for flax.

;Undated

John Guard marries Elizabeth 'Betty' Parker in Sydney. She leaves Sydney on the schooner Waterloo on 7 November, arrives at Te Awaiti before the end of the year, and is the first European women to settle permanently in the South Island.
A whaling station is operating from Porirua.
Jack Duff, a trader, is the first known European to visit the Palmerston North area. He travels by whaleboat up river as far inland as Woodville and returns to Porirua.
The first inland mission is started at Waimate North.

;Unknown date