Prime Minister of United Kingdom, Keir Starmer, announced his resignation on Monday (June 22, 2026), with a time-table of his expected departure from power, in a televised address from 10 Downing Street in London.

His resignation comes on the heels of his visit to the U.S. as part of the G7 Summit and discussions with leaders about the future of the wider crisis in West Asia.

Mr. Starmer is now the thirteenth Prime Minister to resign in the U.K.’s history and the sixth after the country separated from the EU., a process acronymed as Brexit.  Other name of leaders who resigned  include Boris Johnson, Rishi Sunak, and Liz Truss. 

Here’s a list of the PMs who have resigned in the UK since its separation from the European Union. 

Keir Starmer

Mr. Starmer took office on July 5, 2024 and is expected to be the caretaker Prime Minister of the UK until a new PM is elected in the country. His resignation comes after months of internal turmoil within the Labour Party.

Rishi Sunak 

Indian-origin Rishi Sunak took office on October 24, 2022 and resigned from power in 2024, following the plummeting popularity numbers of the Conservative Party. His links to India and his parental links to other parts of the world made him vastly popular amongst the Indian diaspora, until his popularity declined leading to his resignation.

Liz Truss 

Liz Truss became the Prime Minister of the UK on September 5, 2022 and left office on October 24, 2022. She became the shortest-serving PM of the country and served for just 49 days due to a governmental crisis within the nation’s polity and the Conservative Party. Social media remembers Ms. Truss after a YouTube stream compared her tenure to that of a cabbage rotting.

Boris Johnson 

Boris Johnson served as the  UK PM and leader of the Conservative Party from July 24, 2019, to September 6, 2022. He stepped down from power following a mass rebellion within his own government. His tenure saw multiple scandals, including what is called the ‘Party Gate.’

Theresa May 

Theresa May served as the U.K. PM from July 13, 2016, to July 24, 2019 and had to resign following a rebellion from both pro-Brexit and anti-Brexit factions within the Conservative Party. 

David Cameron

David Cameron resigned from his post as PM and leader of the Conservative Party on June 24, 2016, following a referendum in which 52% of people voted to leave the European Union. He announced his resignation the next morning after championing the ‘Remain’ faction and pushing for the nation to remain within the European bloc. 

Who will be the next PM of UK?

The next PM of the UK will be determined by elections held in the coming weeks. Keir Starmer’s rival, Andy Burnham, won an important parliamentary seat in North West England on June 19, 2026, setting the stage for him to potentially vie for the top post.