NZ Prime Minister List: All 42 Leaders (1856–2025)

If you’ve ever wondered exactly how many people have led New Zealand since the country first set up its own government, you’re not alone. From the earliest premier who lasted less than two weeks to a current leader elected in 2023, the story of New Zealand’s prime ministers is packed with dramatic contrasts.

Total prime ministers since 1856: 42 ·
Current prime minister: Christopher Luxon (since 27 November 2023) ·
Longest-serving: Richard Seddon (13 years, 1893–1906) ·
Shortest-serving: Henry Sewell (13 days in 1856) ·
First female prime minister: Jenny Shipley (1997–1999) ·
Most recent resignation: Jacinda Ardern (January 2023)

Six key facts tell the story at a glance: the first, the current, the extremes, and a first.

How many prime ministers has New Zealand had?

Total count since 1856

• New Zealand has had 42 prime ministers (including premiers) since the position was created in 1856 (NZ History (government historical authority)).
• The first was Henry Sewell, who served for 13 days in May 1856 (Britannica (international encyclopedia)).
• The current prime minister is Christopher Luxon, who took office on 27 November 2023 (NZ History).

List of all prime ministers with dates

For a full chronological collection, NZ History presents biographies in order of term served, and Britannica provides a clean chronological list beginning with Sewell. The position was originally called “Premier” until 1906, when William Hall-Jones became the first sworn in as “Prime Minister” (DigitalNZ (National Library of New Zealand)).

Who was New Zealand’s longest serving prime minister?

Richard Seddon’s tenure

• Richard Seddon served as prime minister from 1893 to 1906, a total of 13 years, making him the longest-serving (AnyQuestions (New Zealand government library service)).
• Seddon died in office in 1906, ending the longest uninterrupted tenure in New Zealand history (NZ History).

Other long-serving prime ministers

• William Massey served from 1912 to 1925, also 13 years, though his term was partly overlapping with World War I (NZ History).
• Keith Holyoake served two periods (1957, then 1960–1972) for a combined total of about 12 years (DigitalNZ).
• Helen Clark served three consecutive terms from 1999 to 2008, making her the longest-serving Labour prime minister (AnyQuestions).

The implication: New Zealand’s longest-serving leaders tended to govern in periods of stability. Seddon dominated the late colonial era, Massey led through war, and Holyoake and Clark each steered sustained economic and social changes.

Who was the shortest-serving prime minister of New Zealand?

Henry Sewell’s 13-day term

• Henry Sewell served as the first prime minister for only 13 days in May 1856 (NZ History).
• His government lost a confidence vote almost immediately, forcing him to resign (Britannica).

Other short tenures

• Harry Atkinson served multiple short terms — his longest lasted only a few months, and he briefly took office six separate times (Britannica).
• Frederick Whitaker had two short terms in 1863–1864 and 1882–1883 (NZ History).

The catch: early New Zealand politics was volatile. Governments formed and collapsed rapidly, producing several leaders with terms measured in days or weeks. The 13-day record set by Sewell has never been beaten.

Why is Jacinda Ardern no longer prime minister?

Resignation announcement

• Jacinda Ardern resigned as prime minister on 19 January 2023, effective 7 February 2023 (NZ History).
• She stated she no longer had “enough in the tank” to lead the country and wanted to step down before the 2023 election (BBC News (international news outlet)).

Reasons cited by Ardern

• Her decision was personal, not triggered by a scandal or a specific policy defeat (NZ History).
• After five and a half years in office, including leading through the Christchurch mosque shootings, the White Island eruption, and the COVID-19 pandemic, she felt she could not give the job the energy it required (BBC News).

Ardern’s resignation was unprecedented in recent New Zealand history — a popular prime minister voluntarily stepping down mid-term with no immediate crisis. The move reshaped the 2023 election landscape.

What does Jacinda Ardern do now?

Post-prime ministerial roles

• After resigning, Jacinda Ardern took up fellowships at Harvard University’s Kennedy School and Berkman Klein Center (NZ Herald (New Zealand news outlet)).
• She also serves on the board of the Earthshot Prize, an environmental award founded by Prince William (Earthshot Prize official site).

Current activities

• Ardern has taken on various speaking engagements, including appearances at international forums and universities (NZ Herald).
• She has not returned to frontline politics in New Zealand.

Who was the prime minister of New Zealand before Christopher Luxon?

Chris Hipkins’ tenure

• The prime minister immediately before Christopher Luxon was Chris Hipkins, who served from 25 January 2023 to 27 November 2023 (NZ History).
• Hipkins succeeded Jacinda Ardern after her resignation and led the Labour Party into the 2023 election, which it lost to the National Party (NZ History).

Transition from Ardern to Hipkins to Luxon

• The transition was rapid: Ardern resigned in January, Hipkins took over, called the election in October, and Luxon won in November 2023.
• This made Hipkins one of the shortest-serving prime ministers in modern history — just over 10 months.

Who was the 41st prime minister of New Zealand?

Numbering the recent prime ministers

• The 40th prime minister of New Zealand was Jacinda Ardern (2017–2023) (NZ History).
• The 41st prime minister was Chris Hipkins (January–November 2023) (NZ History).
• The 42nd and current prime minister is Christopher Luxon (since November 2023) (NZ History).

Numbering is based on consecutive individuals who held the office, counting back to Henry Sewell. Note that some lists count differently depending on whether they include acting prime ministers or repeat terms by the same person. The official count of 42 excludes acting roles (DigitalNZ).

From 13-day terms to 13-year runs, New Zealand’s 42 prime ministers reflect the country’s shift from a fragile colonial settlement to a stable modern democracy. For anyone researching the New Zealand prime minister list, the lesson is clear: the office has never been predictable, but it has always been consequential. For voters heading into the next election, the choice is between continuing Luxon’s economic reset or returning to Labour — a decision that will add a 43rd line to the list.