Charles III is head of state of 15 Commonwealth realms and has had 22 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, seven new prime ministers have been appointed during the reign of Charles III, the first being Rishi Sunak as Prime Minister of the United Kingdom on 25 October 2022 and the most recent being Mark Carney as Prime Minister of Canada on 14 March 2025.
Contents
- List of prime ministers
- Antigua and Barbuda
- Australia
- The Bahamas
- Belize
- Canada
- Grenada
- Jamaica
- New Zealand
- Papua New Guinea
- Saint Kitts and Nevis
- Saint Lucia
- Saint Vincent and the Grenadines
- Solomon Islands
- Tuvalu
- United Kingdom
- See also
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.
