List of Prime Ministers of New Zealand by tenure

The following is a list of Prime Ministers of New Zealand ranked by their total term in office (multiple terms are added together to give the total term in office).

† - Died in office.

Note: Some lists consider Hugh Watt as a New Zealand Prime Minister. Watt served as acting Prime Minister for seven days from 31 August to 6 September 1972 following the death of Norman Kirk. He is not normally counted in the official numbering of New Zealand Prime Ministers.

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