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POLITICS
United Kingdom
Youngest Prime Ministers
This list features the youngest British Prime Ministers to ever hold office.
RANK | PRIME MINISTER | AGE | TENURE |
1 | William Pitt the Younger | 24 years, 205 days | 1783–1806 |
2 | Augustus FitzRoy, 3rd Duke of Grafton | 33 years, 16 days | 1757–1758 |
3 | Charles Watson-Wentworth, 2nd Marquess of Rockingham | 35 years, 61 days | 1765–1766 |
4 | William Cavendish, 4th Duke of Devonshire | 36 years, 192 days | 1756–1757 |
5 | Frederick North, Lord North | 37 years, 290 days | 1770–1782 |
6 | Robert Jenkinson, 2nd Earl of Liverpool | 42 years, 1 day | 1812–1827 |
7 | Rishi Sunak | 42 years, 166 days | 2022–2024 |
8 | David Cameron | 43 years, 214 days | 2010–2016 |
9 | Henry Addington | 43 years, 291 days | 1805–1806 |
10 | Tony Blair | 43 years, 361 days | 1997–2007 |
11 | Robert Walpole | 44 years, 220 days | 1721–1742 |
References
Standard. (2022). Youngest Prime Ministers Ever: Rishi Sunak PM at 42 Years Old. Available at: https://www.standard.co.uk/news/politics/youngest-prime-ministers-ever-rishi-sunak-pm-42-years-old-b1035012.html [Accessed 1 December 2025].
UK Government. (n.d.). History of Prime Ministers. Available at: https://www.gov.uk/government/history/past-prime-ministers [Accessed 1 December 2025].
Wikipedia. (2024). List of Prime Ministers of the United Kingdom by Age. Available at: https://en.wikipedia.org/wiki/List_of_prime_ministers_of_the_United_Kingdom_by_age [Accessed 1 December 2025].
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