- Donald Acheson, physician and epidemiologist, Chief Medical Officer of the United Kingdom from 1983 to 1991
- Henry Addington (Lord Sidmouth), Prime Minister of the United Kingdom 1801 to 1804
- Kate Allen, head of Amnesty International
- Jeffrey Archer, former politician and writer
- Richard Barham, writer
- Richard Barnfield, writer
- Kate Bliss, English antiques expert from BBC’s Bargain Hunt, Flog It! and Secret Dealers
- Brian Boobbyer, rugby player
- Graham Bowley, Investigative Reporter at The New York Times
- Julian Brazier, MP for Canterbury 1987 to 2017
- John Buchan, writer
- Jessie Burton, writer
- Robert Burton, writer
- David Cameron, Prime Minister of the United Kingdom 2010 to 2016
- Simon Carr, The Independent's parliamentary sketch writer and columnist since 2000
- Roger Casale, Labour MP for Wimbledon in London from 1997 to 2005
- Baroness Camilla Cavendish, journalist and former Director of Policy for Prime Ministe
- Richard Cavendish, historian
- John Clavell, highwayman and playwright
- Colin Clark, economist
- Peter Conradi, writer
- Laura Corcoran, in cabaret comedy duo Frisky & Mannish
- Colin Cowdrey, cricketer
- Diane Coyle, economist and a former advisor to the UK Treasury
- Helen Dale, writer
- Rajan Datar, BBC radio presenter
- Helen DeWitt, writer
- Thomas Egerton (Lord Ellesmere), Lord Chancellor
- Arthur Evans, archaeologist
- J.G. Farrell, writer
- John Foxe, writer
- Michael Freeman, writer, photographer and journalist
- William Golding, writer
- Olivia Grant, actress
- John Grey Gorton, Prime Minister of Australia
- Douglas Haig, Commander in Chief, First World War
- Tim Harford, economist and journalist
- Mark Harper, MP for the Forest of Dean
- Jim Hawkins, Headmaster of Harrow School 2011 to 2018
- Reginald Heber, bishop and hymn writer
- Simon Henderson, Headmaster of Eton College
- Cappy Hill, president of Vassar College 2006 to 2016, managing director of Ithaka S+R
- Stanley Hooker, engine designer
- Gill Hornby, journalist and writer
- Edward Hulton, founder of Picture Post
- Peter Jackson, English Appeal Court judge and former High Court Judge
- Robin Janvrin, Private Secretary to Elizabeth II from 1999 to 2007
- David Langford, writer
- Eylon Levy, Investigative journalist and news anchor
- Victor Keegan, journalist and writer
- Bruce Kent, campaigner for nuclear disarmament
- Michael Kosterlitz, physicist and winner of Nobel Prize in Physics
- Chris Lowe, journalist and BBC News presenter
- Myles MacInnes, Scottish electronic musician and record producer (under the name Mylo)
- John Marston, playwright
- Simon Mawer, writer
- Grace McCleen, writer
- Will MacDonald, television producer, executive and writer
- Marcus Morris, founder of the Eagle comic
- Eleanor Mills, editorial director of The Sunday Times
- George Monbiot, journalist and environmental campaigner
- John Mortimer, writer and barrister
- Alexander Nowell, Dean of St. Paul's 1560 to 1602
- Alexander Obolensky, rugby player
- William O’Chee, member of the Australian Senate 1990 to 1999, representing the state of Queensland
- Claire O'Neill, Conservative MP for Devizes, 2010 to 2019; President of the 26th United Nations Climate Change Conference
- Michael Palin, comedian, actor, film maker and television presenter
- Walter Pater, writer and critic
- David Pearce, philosopher and co to founder of Humanity+, formerly the World Transhumanist Association
- William Petty, scientist, economist, doctor and more
- Robert Reid, Chairman of British Rail
- Geoffrey Rippon, Conservative politician
- Robert Burton, Permanent Secretary of the Department for International Trade
- Robert Runcie, Archbishop of Canterbury 1980 to 1991
- Robert Burton, journalist
- Vir Sanghvi, Indian print and television journalist, columnist and talk show host
- Peter Sands, banker and executive director of the Global Fund to fight AIDS, Tuberculosis and Malaria
- Mark Saville, judge and former Justice of the Supreme Court of the United Kingdom
- Leslie Scarman, Chief Justice
- Kenneth Spence, rugby player
- Alan Smith, former Test cricketer
- Olivia Solon, journalist
- Michael Stratton, clinical scientist and director of the Wellcome Trust Sanger Institute
- Arnold Strode-Jackson, Olympic gold medalist and decorated army officer
- Thomas Stuttaford, doctor, writer, columnist and former Conservative Member of Parliament
- Jeremy Taylor, writer and divine
- Oliver Tomaszczyk, rugby player
- Thomas Traherne, poet
- Malcolm Turnbull, Prime Minister of Australia, 2015 to 2018
- Toby Young, journalist and former Director of the New Schools Network, a free schools charity
- Iain Vallance, Liberal Democrat politician
- William Webb Ellis, reputed founder of Rugby Football
- F.E. Weatherly, songwriter
- Sara Wheeler, writer
- Lionel Wigram, film producer
- Mark Williams, actor
- Francis Willis, George III's doctor
- Nick Wood, rugby player
- William Woodward, Head of Sport at The Guardian
- Owain Yeoman, actor
- Douglas Young, cricketer
- Henry Zeffman, journalist
