1831 in New Zealand
Regal and viceregal
- Head of State – King William IV
- Governor of New South Wales – Major-General Sir Richard Bourke succeeds General Ralph Darling on 22 October
- 16 April – Trade in preserved Māori heads as curios is outlawed by the Governor of New South Wales.
- 1 October – John Guard Junior born at his father's whaling station at Te Awaiti in Tory Channel. He is the first European child born in the South Island.
- 11 October – The first marriage between two Europeans in New Zealand is performed at Waimate North. William Gilbert Puckey marries Mathilda Davis.
- 25 December – John Guard Junior baptised in Sydney. (see above)
- Joseph Brooks Weller commissions a vessel from shipbuilders on Stewart Island.
- Joseph Brooks Weller arrives in Otago Harbour on the Sir George Murray and makes an agreement with local Māori claiming territory for King William IV before returning to Sydney.
- Ngāti Toa under chief and war leader Te Rauparaha besiege Ngāi Tahu stronghold of Kaiapoi pā.
- Traders led by Joe Rowe are the first Europeans to visit the Wanganui area.
- 8 January (in England): William Garden Cowie, first Anglican bishop of Auckland.
- 19 September (in England): William Rolleston, politician.
- 1 November (in England): Henry Albert (Harry) Atkinson, 10th premier of New Zealand.
- 24 November (in Dublin): Rose Whitty, convent founder.
- List of years in New Zealand
- Timeline of New Zealand history
- History of New Zealand
- Military history of New Zealand
- Timeline of the New Zealand environment
- Timeline of New Zealand's links with Antarctica
- McLauchlan, Gordon; King, Michael; Keith, Hamish; Walker, Ranginui; Barber, Laurie, eds. (1986). The New Zealand Book of Events. Reed Methuen.
- Dictionary of New Zealand Biography: Elizabeth Guard
- New Zealand Encyclopaedia 1966: Guard Biography
- New Zealand History online: The Harriet Affair 1834
- Wises New Zealand Guide, 7th Edition, 1979. p. 427.
- Wises New Zealand Guide, 7th Edition, 1979. p. 10.
- The Wises entry erroneously has William GEORGE Puckey who was in fact William and Mathilda's first child.
- Wises New Zealand Guide, 7th Edition, 1979. p. 474.
- The Family Research of Monique Jones
- This vessel may have been the Joseph Weller mentioned in Wises New Zealand Guide 7th Edition, 1979. p.405. as having been the first ship built on the island some time after 1826.
- Wises New Zealand Guide, 7th Edition, 1979. p. 494.
- Davidson, Allan K. (1993). "Cowie, William Garden 1831 - 1902". Dictionary of New Zealand Biography.
- Gardner, W. J. (1990). "Rolleston, William 1831 - 1903'". Dictionary of New Zealand Biography.
- Armstrong, W.R. (1966). "ATKINSON, Sir Harry Albert, K.C.M.G". An Encyclopaedia of New Zealand, edited by A. H. McLintock. Te Ara - The Encyclopedia of New Zealand.
- Catholic Encyclopedia