| 1 |  Robert Walpole 1721–1742 Widely regarded as the first de facto Prime Minister, Walpole's tenure brought stability to Britain after the South Sea Bubble crisis. He consolidated the power of the office and emphasized peace and lower land taxes to promote trade and economic recovery. | Feb 11, 1742 | Apr 15, 1721 |
| 2 |  Spencer Compton, 1st Earl of Wilmington 1742–1743 Serving a short term following Walpole, Wilmington, though nominally Prime Minister, was largely a figurehead due to his ill health, with real power often resting with other ministers. His ministry largely focused on foreign affairs during the War of the Austrian Succession. | Jul 2, 1743 | Feb 16, 1742 |
| 3 |  Henry Pelham 1743–1754 Pelham's administration focused on financial reforms, including reducing the national debt and consolidating various government bonds. He successfully led Britain through the latter part of the War of the Austrian Succession and managed the country during the Jacobite Rising of 1745. | Mar 6, 1754 | Aug 27, 1743 |
| 4 |  Thomas Pelham-Holles, 1st Duke of Newcastle-upon-Tyne 1754–1756 (First Term) Inheriting his brother's political network, Newcastle's first term as Prime Minister saw Britain's entry into the Seven Years' War. His administration faced criticism for its early conduct of the war, particularly the loss of Minorca. | Nov 16, 1756 | Mar 16, 1754 |
| 5 |  William Cavendish, 4th Duke of Devonshire 1756–1757 Devonshire served as a compromise Prime Minister during a period of wartime instability, with much of the actual governmental power wielded by William Pitt the Elder. His brief ministry ended with a reorganization of the government. | Jun 25, 1757 | Nov 16, 1756 |
| 6 |  John Stuart, 3rd Earl of Bute 1762–1763 A close confidant of King George III, Bute's premiership was marked by the controversial Treaty of Paris, which ended the Seven Years' War. His Scottish background and perceived royal favoritism made him unpopular, leading to his resignation. | Apr 8, 1763 | May 26, 1762 |
| 7 |  George Grenville 1763–1765 Grenville's ministry is best known for its attempts to address the national debt after the Seven Years' War, notably through the controversial Stamp Act of 1765, which ignited widespread opposition in the American colonies and contributed to the American Revolution. | Jul 13, 1765 | Apr 16, 1763 |
| 8 |  Charles Watson-Wentworth, 2nd Marquess of Rockingham 1765–1766 (First Term) Rockingham's first government repealed the Stamp Act but also passed the Declaratory Act, asserting Parliament's authority over the colonies. His administration promoted Whig principles and sought to reduce royal influence in government. | Jul 30, 1766 | Jul 13, 1765 |
| 9 |  William Pitt, 1st Earl of Chatham Prime Minister of Great Britain from 1766 to 1768 (1708–1778) | Oct 14, 1768 | Jul 30, 1766 |
| 10 |  Augustus FitzRoy, 3rd Duke of Grafton British noble (1735-1811) | Jan 28, 1770 | Oct 14, 1768 |
| 11 |  Frederick North, 2nd Earl of Guilford Prime Minister of Great Britain from 1770 to 1782 | Mar 22, 1782 | Jan 28, 1770 |
| 12 |  William Petty, 2nd Earl of Shelburne 1782–1783 Shelburne's government negotiated the Treaty of Paris, formally ending the American War of Independence. His administration sought to promote free trade and reconcile with the former colonies. | Apr 2, 1783 | Jul 4, 1782 |
| 13 |  William Cavendish-Bentinck, 3rd Duke of Portland 1783 (First Term) Portland led the Fox-North Coalition, a controversial alliance of former rivals. His short-lived government was brought down by King George III's opposition to Fox's India Bill. | Dec 19, 1783 | Apr 2, 1783 |
| 14 |  William Pitt the Younger 1783–1801 (First Term) Pitt the Younger's first premiership, the longest since Walpole, focused on financial reform, including reducing the national debt and improving government efficiency. He skillfully navigated Britain through the early years of the French Revolutionary Wars. | Mar 14, 1801 | Dec 19, 1783 |
| 15 |  Henry Addington, 1st Viscount Sidmouth 1801–1804 Addington's ministry sought to achieve peace with France, culminating in the Treaty of Amiens, though this peace proved short-lived. He focused on domestic stability and financial management during a challenging period. | May 10, 1804 | Mar 14, 1801 |
| 16 |  William Wyndham Grenville, 1st Baron Grenville British Prime Minister, politician (1759-1834) | Mar 31, 1807 | Feb 11, 1806 |
| 17 |  Spencer Perceval 1809–1812 Perceval led Britain during a critical phase of the Napoleonic Wars, maintaining a firm stance against France. He was the only British Prime Minister to be assassinated while in office. | May 11, 1812 | Oct 4, 1809 |
| 18 |  Robert Jenkinson, 2nd Earl of Liverpool Prime Minister of the United Kingdom from 1812 to 1827 | Apr 9, 1827 | Jun 8, 1812 |
| 19 |  George Canning 1827 A brilliant orator and leading Tory, Canning's brief premiership was marked by his efforts to promote liberal foreign policies and advocate for Catholic emancipation. His attempts at forming a broad-based government faced significant opposition. | Aug 8, 1827 | Apr 10, 1827 |
| 20 |  F. J. Robinson, 1st Viscount Goderich British Prime Minister, politician (1782-1859) | Jan 21, 1828 | Aug 31, 1827 |
| 21 |  Arthur Wellesley, 1st Duke of Wellington 1828–1830 (First Term) The 'Iron Duke's' first term as Prime Minister saw the significant achievement of Catholic Emancipation, though he resisted further parliamentary reform. His conservative stance eventually led to his government's downfall. | Nov 16, 1830 | Jan 22, 1828 |
| 22 |  Charles Grey, 2nd Earl Grey 1830–1834 Lord Grey's Whig government passed the landmark Great Reform Act of 1832, which significantly expanded the electorate and modernized the British political system. His administration also abolished slavery throughout the British Empire. | Jul 16, 1834 | Nov 22, 1830 |
| 23 |  William Lamb, 2nd Viscount Melbourne 1834 (First Term) Melbourne's first brief period as Prime Minister was marked by his efforts to maintain a moderate Whig course amidst growing calls for further reform. His government faced immediate challenges and was soon dismissed by King William IV. | Nov 14, 1834 | Jul 16, 1834 |
| 24 |  Robert Peel 1834–1835 (First Term) Peel's first minority government, formed after the dismissal of Melbourne, issued the Tamworth Manifesto, outlining a new, more moderate Conservative agenda. He laid the groundwork for the modern Conservative Party. | Apr 8, 1835 | Dec 10, 1834 |
| 25 |  John Russell, 1st Earl Russell 1846–1852 (First Term) Russell's first administration dealt with the Irish Famine and promoted public health reforms, notably the Public Health Act of 1848. He was a prominent advocate for parliamentary reform and religious freedom. | Feb 23, 1852 | Jun 30, 1846 |
| 26 |  Edward Smith-Stanley, 14th Earl of Derby 1852 (First Term) Lord Derby's first minority government, often referred to as the 'Who? Who? Ministry,' struggled to pass significant legislation and quickly fell due to a lack of parliamentary support. | Dec 19, 1852 | Feb 23, 1852 |
| 27 |  George Hamilton-Gordon, 4th Earl of Aberdeen 1852–1855 Aberdeen led a coalition government that brought Britain into the Crimean War. His administration faced criticism for its management of the war, leading to his resignation. | Jan 30, 1855 | Dec 19, 1852 |
| 28 |  Henry Temple, 3rd Viscount Palmerston British statesman and prime minister (1784–1865) | Feb 19, 1858 | Feb 6, 1855 |
| 29 |  Benjamin Disraeli 1868 (First Term) Disraeli's first, very brief premiership, following Derby's resignation, allowed him to assume the top office before the general election. He focused on domestic issues and prepared for the upcoming election. | Dec 1, 1868 | Feb 27, 1868 |
| 30 |  William Ewart Gladstone 1868–1874 (First Term) Gladstone's first great ministry saw significant reforms, including the disestablishment of the Church of Ireland, educational reforms, and the introduction of the secret ballot. He aimed to improve individual liberty and loosen political restraints. | Feb 17, 1874 | Dec 3, 1868 |
| 31 |  Robert Gascoyne-Cecil, 3rd Marquess of Salisbury 1885–1886 (First Term) Lord Salisbury's first minority government took office after Gladstone's resignation and focused on managing parliamentary affairs, particularly regarding Ireland. He attempted to contain the Irish problem with firm government and reform. | Jan 28, 1886 | Jun 23, 1885 |
| 32 |  Archibald Primrose, 5th Earl of Rosebery 1894–1895 Lord Rosebery, Gladstone's successor, continued a Liberal imperialist foreign policy but struggled with leadership challenges and internal party divisions. His government ultimately fell due to a minor parliamentary defeat. | Jun 22, 1895 | Mar 5, 1894 |
| 33 |  Arthur Balfour 1902–1905 Balfour's government focused on education reform, notably the Education Act of 1902, and naval reorganization. His premiership was increasingly dominated by the issue of tariff reform, which ultimately divided the Conservative Party. | Dec 5, 1905 | Jul 11, 1902 |
| 34 |  Henry Campbell-Bannerman 1905–1908 The first to be officially called 'Prime Minister', Campbell-Bannerman led the Liberal Party to a landslide victory in 1906. His government introduced significant social reforms, including free school meals, and addressed trade union rights. | Apr 3, 1908 | Dec 5, 1905 |
| 35 |  H. H. Asquith 1908–1916 Asquith's Liberal government introduced wide-ranging social welfare reforms, tackled the power of the House of Lords, and led Britain into World War I. His leadership during the war faced increasing criticism, leading to his replacement. | Dec 5, 1916 | Apr 8, 1908 |
| 36 |  David Lloyd George 1916–1922 Lloyd George led the wartime coalition government during the latter half of World War I, overseeing the eventual Allied victory. Post-war, his government addressed reconstruction and negotiated the Treaty of Versailles, but also faced significant social unrest. | Oct 19, 1922 | Dec 6, 1916 |
| 37 |  Bonar Law 1922–1923 Bonar Law became the first Prime Minister from the modern United Kingdom of Great Britain and Northern Ireland following the secession of the Irish Free State. His short term focused on consolidating the Conservative Party and addressing post-war economic issues. | May 22, 1923 | Oct 23, 1922 |
| 38 |  Stanley Baldwin 1923–1924 (First Term) Baldwin's first government was brief, formed after Bonar Law's resignation, and focused on economic stability before losing a general election. | Jan 16, 1924 | May 23, 1923 |
| 39 |  Ramsay MacDonald 1924 (First Term) MacDonald led the first Labour government in the UK, a minority administration that demonstrated Labour's capacity for governance. His government focused on social welfare and foreign policy. | Nov 4, 1924 | Jan 22, 1924 |
| 40 |  Neville Chamberlain 1937–1940 Chamberlain is most remembered for his policy of appeasement towards Adolf Hitler, particularly the Munich Agreement of 1938, in an attempt to avoid war. Despite his efforts, Britain declared war on Germany under his leadership in 1939. | May 10, 1940 | May 28, 1937 |
| 41 |  Winston Churchill 1940–1945 (First Term) Churchill's first premiership led Britain through the majority of World War II, inspiring the nation with his powerful oratory and unwavering resolve. He played a pivotal role in the Allied victory over Nazi Germany. | Jul 26, 1945 | May 10, 1940 |
| 42 |  Clement Attlee 1945–1951 Attlee's Labour government presided over the creation of the National Health Service and the establishment of a comprehensive welfare state. His administration also oversaw the nationalization of key industries and the decolonization of India. | Oct 26, 1951 | Jul 26, 1945 |
| 43 |  Anthony Eden 1955–1957 Eden's premiership was largely defined by the Suez Crisis of 1956, a controversial military intervention that significantly damaged Britain's international standing and led to his resignation. | Jan 9, 1957 | Apr 6, 1955 |
| 44 |  Harold Macmillan 1957–1963 Macmillan restored confidence after the Suez Crisis, famously stating, 'You've never had it so good.' His government saw economic prosperity, distanced the UK from apartheid, sped up decolonization, and he was heavily involved in negotiating the Nuclear Test Ban Treaty. | Oct 19, 1963 | Jan 10, 1957 |
| 45 |  Alec Douglas-Home 1963–1964 Douglas-Home became Prime Minister while still a peer, renouncing his earldom to sit in the House of Commons. His brief government focused on economic modernization but lost the subsequent general election. | Oct 16, 1964 | Oct 19, 1963 |
| 46 |  Harold Wilson 1964–1970 (First Term) Wilson's first Labour government focused on modernization and social reform, including the abolition of capital punishment and the decriminalization of homosexuality. He navigated a challenging economic landscape with frequent devaluations of the pound. | Jun 19, 1970 | Oct 16, 1964 |
| 47 |  Edward Heath 1970–1974 Heath's Conservative government led Britain into the European Economic Community in 1973. His premiership was marked by industrial unrest, particularly miners' strikes, and attempts to modernize the British economy. | Mar 4, 1974 | Jun 19, 1970 |
| 48 |  James Callaghan 1976–1979 Callaghan's Labour government faced significant economic challenges, including the 'Winter of Discontent' with widespread strikes. He struggled to maintain a parliamentary majority and ultimately lost a vote of no confidence. | May 4, 1979 | Apr 5, 1976 |
| 49 |  Margaret Thatcher 1979–1990 Britain's first female Prime Minister, 'The Iron Lady' implemented radical free-market reforms, privatized state industries, and significantly curbed the power of trade unions. Her premiership included the Falklands War and a period of strong economic growth. | Nov 28, 1990 | May 4, 1979 |
| 50 |  John Major 1990–1997 Major succeeded Margaret Thatcher, aiming for a 'classless society' and navigating Britain through the early 1990s recession and negotiations over the Maastricht Treaty. His administration also played a pivotal role in the Northern Ireland peace process. | May 2, 1997 | Nov 28, 1990 |
| 51 |  Tony Blair 1997–2007 Blair led the Labour Party to a landslide victory, ushering in 'New Labour'. His government introduced significant constitutional reforms, increased public spending on health and education, and committed British troops to wars in Afghanistan and Iraq. | Jun 27, 2007 | May 2, 1997 |
| 52 |  Gordon Brown 2007–2010 Brown's premiership was largely defined by the global financial crisis of 2008, which he navigated with international cooperation and domestic stimulus measures. He focused on economic stability and social justice. | May 11, 2010 | Jun 27, 2007 |
| 53 |  David Cameron 2010–2016 Cameron led the first coalition government since World War II, implementing austerity measures and public sector reforms. His premiership was dominated by the 2016 Brexit referendum, which led to his resignation after the vote to leave the European Union. | Jul 13, 2016 | May 11, 2010 |
| 54 |  Theresa May 2016–2019 May's premiership was almost entirely consumed by the complex negotiations and political challenges surrounding Brexit, as she sought to deliver on the referendum result while securing a deal acceptable to Parliament. | Jul 24, 2019 | Jul 13, 2016 |
| 55 |  Boris Johnson 2019–2022 Johnson's government achieved a large Conservative majority and finalized the UK's withdrawal from the European Union. His tenure also saw the initial response to the COVID-19 pandemic and faced various controversies. | Sep 6, 2022 | Jul 24, 2019 |
| 56 |  Liz Truss 2022 Truss served the shortest term as Prime Minister in British history, resigning after just 49 days following a period of significant economic and political turmoil caused by her government's proposed fiscal policies. | Oct 25, 2022 | Sep 6, 2022 |
| 57 |  Rishi Sunak 2022–2024 Sunak became Prime Minister amidst economic instability, focusing on restoring fiscal credibility and tackling inflation. His government aimed to stabilize the economy and address cost-of-living challenges. | Jul 5, 2024 | Oct 25, 2022 |
| 58 | William Pitt the Elder, 1st Earl of Chatham 1766–1768 Pitt's second premiership, marked by ill health and a lack of firm control over his cabinet, was largely ineffective. Despite his earlier successes, this period saw increasing tensions with the American colonies. | — | — |
| 59 | Augustus Henry Fitzroy, 3rd Duke of Grafton 1768–1770 Grafton's time as Prime Minister was characterized by attempts to reconcile with the American colonies, though his efforts were often undermined by internal divisions and the actions of other ministers. He struggled with political instability and rising public discontent. | — | — |
| 60 | Frederick North, Lord North 1770–1782 Lord North's long premiership was dominated by the American War of Independence, which ultimately resulted in the loss of the American colonies. Despite his personal affability and skill in Parliament, he is remembered as 'the man who lost America.' | — | — |
| 61 | Robert Banks Jenkinson, 2nd Earl of Liverpool 1812–1827 Lord Liverpool's long and stable government guided Britain through the final years of the Napoleonic Wars and the subsequent period of post-war social and economic unrest. His administration oversaw significant reform efforts, including a return to the gold standard. | — | — |
| 62 | Frederick John Robinson, 1st Viscount Goderich 1827–1828 Lord Goderich's short and indecisive premiership was plagued by internal divisions and his own lack of confidence, leading to his swift resignation amidst political turmoil. | — | — |
| 63 | Henry John Temple, 3rd Viscount Palmerston 1855–1858 (First Term) Palmerston's first premiership saw him guide Britain through the remainder of the Crimean War and deal with the Indian Rebellion of 1857. Known for his assertive foreign policy, he maintained Britain's position as a global power. | — | — |
| 64 | Henry John Temple, 3rd Viscount Palmerston 1859–1865 (Second Term) Palmerston's second and final term as Prime Minister was characterized by careful neutrality during the American Civil War and continued emphasis on maintaining British influence abroad. He died in office at the age of 80. | — | — |
| 65 | Sir Keir Starmer 2024–Present Sir Keir Starmer assumed office on July 5, 2024, becoming the current Prime Minister. He leads the Labour Party and has focused on economic growth, strengthening workers' rights, and healthcare reforms. | — | — |