Charles III is head of state of 15 Commonwealth realms and has had 21 prime ministers throughout his reign. Within the Westminster system in each realm, the King's government is headed by a prime minister. Appointment and dismissal of prime ministers are common reserve powers that can be exercised by the King or his governors-general. To date, Charles has appointed seven new prime ministers, the first being Rishi Sunak as Prime Minister of the United Kingdom on 25 October 2022 and the most recent being Sir Keir Starmer to the same office on 5 July 2024.
This list does not cover Commonwealth nations that are not Commonwealth realms, as Charles is not head of state in these nations. Nor does it cover holders of offices of prime minister in sub-national entities such as states, dependencies, or provinces.
No. | Portrait | Name (Birth) | Tenure | |
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Took office | Left office | |||
1 | ![]() | Gaston Browne (b. 1967) | 13 June 2014 | Incumbent |
No. | Portrait | Name (Birth) | Tenure | |
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Took office | Left office | |||
1 | ![]() | Anthony Albanese (b. 1963) | 23 May 2022 | Incumbent |
No. | Portrait | Name (Birth) | Tenure | |
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Took office | Left office | |||
1 | ![]() | Philip Davis (b. 1951) | 17 September 2021 | Incumbent |
No. | Portrait | Name (Birth) | Tenure | |
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Took office | Left office | |||
1 | ![]() | Johnny Briceño (b. 1960) | 12 November 2020 | Incumbent |
No. | Portrait | Name (Birth) | Tenure | |
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Took office | Left office | |||
1 | ![]() | Justin Trudeau (b. 1971) | 4 November 2015 | Incumbent |
No. | Portrait | Name (Birth) | Tenure | |
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Took office | Left office | |||
1 | ![]() | Dickon Mitchell (b. 1978) | 24 June 2022 | Incumbent |
No. | Portrait | Name (Birth) | Tenure | |
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Took office | Left office | |||
1 | ![]() | Andrew Holness (b. 1972) | 3 March 2016 | Incumbent |
The Realm of New Zealand comprises three autonomous jurisdictions: New Zealand and its associated states of the Cook Islands and Niue. As King of New Zealand Charles is the monarch of the entire realm.
Jacinda Ardern was the incumbent prime minister when Charles became King.
No. | Portrait | Name (Birth) | Tenure | |
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Took office | Left office | |||
1 | ![]() | Jacinda Ardern (b. 1980) | 26 October 2017 | 25 January 2023 |
2 | ![]() | Chris Hipkins (b. 1978) | 25 January 2023 | 27 November 2023 |
3 | ![]() | Christopher Luxon (b. 1970) | 27 November 2023 | Incumbent |
No. | Portrait | Name (Birth) | Tenure | |
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Took office | Left office | |||
1 | ![]() | Mark Brown (b. 1963) | 1 October 2020 | Incumbent |
No. | Portrait | Name (Birth) | Tenure | |
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Took office | Left office | |||
1 | ![]() | Dalton Tagelagi (b. 1968) | 11 June 2020 | Incumbent |
No. | Portrait | Name (Birth) | Tenure | |
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Took office | Left office | |||
1 | ![]() | James Marape (b. 1971) | 30 May 2019 | Incumbent |
No. | Portrait | Name (Birth) | Tenure | |
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Took office | Left office | |||
1 | ![]() | Terrance Drew (b. 1976) | 6 August 2022 | Incumbent |
No. | Portrait | Name (Birth) | Tenure | |
---|---|---|---|---|
Took office | Left office | |||
1 | ![]() | Philip Pierre (b. 1954) | 28 July 2021 | Incumbent |
No. | Portrait | Name (Birth) | Tenure | |
---|---|---|---|---|
Took office | Left office | |||
1 | ![]() | Ralph Gonsalves (b. 1946) | 29 March 2001 | Incumbent |
Manasseh Sogavare was the incumbent prime minister when Charles became King.
No. | Portrait | Name (Birth) | Tenure | |
---|---|---|---|---|
Took office | Left office | |||
1 | ![]() | Manasseh Sogavare (b. 1955) | 24 April 2019 | 2 May 2024 |
2 | ![]() | Jeremiah Manele (b. 1968) | 2 May 2024 | Incumbent |
Kausea Natano was the incumbent prime minister when Charles became king.
No. | Portrait | Name (Birth) | Tenure | |
---|---|---|---|---|
Took office | Left office | |||
1 | ![]() | Kausea Natano (b. 1957) | 19 September 2019 | 26 February 2024 |
2 | ![]() | Feleti Teo (b. 1962) | 26 February 2024 | Incumbent |
Liz Truss was the incumbent prime minister when Charles became king.
No. | Portrait | Name (Birth) | Tenure | |
---|---|---|---|---|
Took office | Left office | |||
1 | ![]() | Liz Truss (b. 1975) | 6 September 2022 | 25 October 2022 |
2 | ![]() | Rishi Sunak (b. 1980) | 25 October 2022 | 5 July 2024 |
3 | ![]() | Sir Keir Starmer (b. 1962) | 5 July 2024 | Incumbent |
Governor-general, or governor general, is the title of an office-holder. In the context of governors-general and former British colonies, governors-general are appointed as viceroy to represent the monarch of a personal union in any sovereign state over which the monarch does not normally reign in person. Governors-general have also previously been appointed in respect of major colonial states or other territories held by either a monarchy or republic, such as Japan in Korea and Taiwan and France in Indochina.
A Commonwealth realm is a sovereign state within the Commonwealth that has Charles III as its monarch and ceremonial head of state. All the realms are equal with and independent of the others, though one person, resident in the United Kingdom, acts as monarch of each. The phrase Commonwealth realm is an informal description not used in any law.
The monarchy of New Zealand is the constitutional system of government in which a hereditary monarch is the sovereign and head of state of New Zealand. The current monarch, King Charles III, acceded to the throne following the death of his mother, Queen Elizabeth II, on 8 September 2022 in the United Kingdom. The King's elder son, William, Prince of Wales, is the heir apparent.
The Head of the Commonwealth is the ceremonial leader who symbolises "the free association of independent member nations" of the Commonwealth of Nations, an intergovernmental organisation that currently comprises 56 sovereign states. There is no set term of office or term limit and the role itself has no constitutional relevance to any of the member states within the Commonwealth. The position is currently held by King Charles III. Head of the Commonwealth is also a title of the monarch of each of the Commonwealth realms according to the Royal Style and Titles Act.
Republicanism in New Zealand is the political position that New Zealand's system of government should be changed from a constitutional monarchy to a republic.
The monarchy of Fiji arose in the 19th century, when native ruler Seru Epenisa Cakobau consolidated control of the Fijian Islands in 1871 and declared himself king, or paramount chief, of Fiji. Three years later, he voluntarily ceded sovereignty of the islands to Britain, making Fiji a crown colony within the British Empire.
The monarchy of Antigua and Barbuda is a system of government in which a hereditary monarch is the sovereign and head of state of Antigua and Barbuda. The current Antiguan and Barbudan monarch and head of state, since 8 September 2022, is King Charles III. As sovereign, he is the personal embodiment of the Crown of Antigua and Barbuda. Although the person of the sovereign is equally shared with 14 other independent countries within the Commonwealth of Nations, each country's monarchy is separate and legally distinct. As a result, the current monarch is officially titled King of Antigua and Barbuda and, in this capacity, he and other members of the Royal Family undertake public and private functions domestically and abroad as representatives of Antigua and Barbuda. However, the King is the only member of the Royal Family with any constitutional role.
The monarchy of Australia is a key component of Australia's form of government, embodied by the Australian sovereign and head of state. The Australian monarchy is a constitutional one, modelled on the Westminster system of parliamentary government, while incorporating features unique to the constitution of Australia.
The republics in the Commonwealth of Nations are the sovereign states in the organisation with a republican form of government. As of June 2022, 36 out of the 56 member states were republics. While Charles III is the titular Head of the Commonwealth, the King is not the head of state of the republican members. The King is however, the reigning monarch in the Commonwealth realms. The Head of the Commonwealth role does not carry with it any power; instead, it is a symbol of the free association of Commonwealth members.
The Cook Islands are a constitutional monarchy within the Realm of New Zealand. Under the Cook Islands Constitution, the Sovereign in Right of New Zealand has been Head of State of the Cook Islands since 4 August 1965. The Sovereign is represented by the King's Representative; as such, the King is the de jure head of state, holding several powers that are his alone, while the King's Representative is sometimes referred to as the de facto head of state. The viceregal position is currently held by Tom Marsters.
The monarchy of The Bahamas is a system of government in which a hereditary monarch is the sovereign and head of state of the Commonwealth of The Bahamas. The current Bahamian monarch and head of state since 8 September 2022, is King Charles III. As sovereign, he is the personal embodiment of the Bahamian Crown. Although the person of the sovereign is equally shared with 14 other independent countries within the Commonwealth of Nations, each country's monarchy is separate and legally distinct. As a result, the current monarch is officially titled King of The Bahamas and, in this capacity, he and other members of the royal family undertake public and private functions domestically and abroad as representatives of the Bahamian state. However, the King is the only member of the Royal Family with any constitutional role.
The monarchy of Grenada is a system of government in which a hereditary monarch is the sovereign and head of state of Grenada. The current Grenadian monarch and head of state, since 8 September 2022, is King Charles III. As sovereign, he is the personal embodiment of the Grenadian Crown. Although the person of the sovereign is equally shared with 14 other independent countries within the Commonwealth of Nations, each country's monarchy is separate and legally distinct. As a result, the current monarch is officially titled King of Grenada and, in this capacity, he and other members of the royal family undertake public and private functions domestically and abroad as representatives of Grenada. However, the King is the only member of the royal family with any constitutional role.
The monarchy of Papua New Guinea is a system of government in which a hereditary monarch is the sovereign and head of state of Papua New Guinea. The current Papua New Guinean monarch and head of state, since 8 September 2022, is King Charles III. As sovereign, he is the personal embodiment of the Papua New Guinean Crown. Although the person of the sovereign is equally shared with 14 other independent countries within the Commonwealth of Nations, each country's monarchy is separate and legally distinct. As a result, the current monarch is officially titled King of Papua New Guinea and, in this capacity, he and other members of the royal family undertake public and private functions domestically and abroad as representatives of Papua New Guinea. However, the King is the only member of the royal family with any constitutional role.
The monarchy of Saint Lucia is a system of government in which a hereditary monarch is the sovereign and head of state of Saint Lucia. The current monarch and head of state, since 8 September 2022, is King Charles III. As sovereign, he is the personal embodiment of the Saint Lucian Crown. Although the person of the sovereign is equally shared with 14 other independent countries within the Commonwealth of Nations, each country's monarchy is separate and legally distinct. As a result, the current monarch is officially titled King of Saint Lucia and, in this capacity, he and other members of the Royal Family undertake public and private functions domestically and abroad as representatives of the Saint Lucian state. However, the King is the only member of the royal family with any constitutional role.
The monarchy of Tuvalu is a system of government in which a hereditary monarch is the sovereign and head of state of Tuvalu. The current Tuvaluan monarch and head of state since 8 September 2022 is King Charles III. As sovereign, he is the personal embodiment of the Tuvaluan Crown. Although the person of the sovereign is equally shared with 14 other independent countries within the Commonwealth of Nations, each country's monarchy is separate and legally distinct. As a result, the current monarch is officially titled King of Tuvalu and, in this capacity, he and other members of the royal family undertake public and private functions domestically and abroad as representatives of the Tuvaluan state. However, the King is the only member of the royal family with any constitutional role.
There are six monarchies in Oceania where supreme power resides with an individual hereditary head, who is recognised as the head of state. Each is a constitutional monarchy, wherein the sovereign inherits his or her office, usually keeps it until death or abdication, and is bound by laws and customs in the exercise of their powers. Five of these independent states share King Charles III as their respective head of state, making them part of a global grouping known as the Commonwealth realms; in addition, all monarchies of Oceania are members of the Commonwealth of Nations. The only sovereign monarchy in Oceania that does not share a monarch with another state is Tonga. Australia and New Zealand have dependencies within the region and outside it, although five non-sovereign constituent monarchs are recognized by New Zealand, Papua New Guinea and France.
From 1947 to 1956, the Dominion of Pakistan was a self-governing country within the Commonwealth of Nations that shared a monarch with the United Kingdom and the other Dominions of the Commonwealth. The monarch's constitutional roles in Pakistan were mostly delegated to a vice-regal representative, the governor-general of Pakistan.