This is a list of notable people born in, or associated with, the city of Swansea, in Britain.

Academics

• Sir Granville Beynon, FRS, physicist
• Edward George Bowen, FRS, radar pioneer
• Alan Cox (computer programmer), key figure in the development of Linux
• Joan Curran, scientist
• Huw Dixon, economist
• Sir Sam Edwards FRS, physicist
• Brian Flowers, Baron Flowers, FRS, physicist
• Sir Clive Granger, Nobel Prize–winning economist
• Sir William Robert Grove, FRS, physicist and judge
• Uzo Iwobi, OBE, lecturer
• John Gwyn Jeffreys, FRS, conchologist, malacologist
• Ernest Jones, psychoanalyst
• John Viriamu Jones, FRS, mathematician, physicist
• David Ley, FRSC, geographer
• Sir John Maddox, Hon. FRS, science writer
• Arun Midha, medical educationist
• Dewi Zephaniah Phillips, philosopher
• Bill Price, physicist
• David Williams FRS, mathematician
• C. E. Wynn-Williams, physicist
• Olgierd Zienkiewicz CBE FRS FREng, mathematician, engineer

Actors and actresses

• Keith Allen
• Kevin Allen
• Gareth Armstrong
• Desmond Barrit
• Rob Brydon
• Geraint Wyn Davies
• Mabel Hackney
• Georgia Henshaw
• Gary Jones
• Ruth Madoc
• Steven Meo
• Islwyn Morris
• Siwan Morris
• Richard Mylan
• Joanna Page
• Robert Perkins
• Ceri Phillips
• Victoria Plucknett
• Cara Readle
• Vincent Regan
• Matt Ryan
• Philip Sayer
• Andy Secombe, voice actor
• Harry Secombe
• John Sparkes
• Talfryn Thomas
• Alexander Vlahos
• Melanie Walters
• Tom Ward
• Catherine Zeta-Jones.

Artists

• Alfred Janes
• Mervyn Levy
• Thyrza Anne Leyshon
• Cedric Morris
• Finbarr O'Reilly, photographer
• Ceri Richards
• Glan Williams

Industrialists

• Lewis Llewelyn Dillwyn
• George Lockwood Morris
• Sir John Morris, 1st Baronet
• Christopher Rice Mansel Talbot
• David Thomas
• Henry Vivian, 1st Baron Swansea
• John Henry Vivian

Journalists and broadcasters

• Colin Edwards, radio journalist and filmmaker
• Huw Edwards, TV presenter
• Charles Fisher, journalist and poet
• Liz Fuller, model and TV presenter
• Ian Hislop, comedian, satirist, editor of Private Eye magazine
• Phil Kerslake, TV presenter
• David Mercer, sports presenter
• Rhodri Owen, radio and TV presenter
• Davinia Palmer, radio and TV presenter
• Anna Ryder Richardson
• Wynford Vaughan-Thomas

Musicians

• Badfinger, rock music group
• Richard Barrett, composer
• Rachel K Collier, singer/songwriter
• Lisa Lee Dark, singer
• Spencer Davis, rock musician
• Mike Gibbins, rock drummer
• Howell Glynne, operatic bass
• Fred Godfrey, songwriter
• Pete Ham, singer/songwriter
• Jones Hewson, baritone
• Shaheen Jafargholi, singer
• Karl Jenkins, composer
• Daniel Jones, composer
• Ceri Rhys Matthews, traditional musician
• John Metcalf, composer
• Rebecca Onslow, singer/songwriter
• Mal Pope, singer/songwriter
• Hannah Stone, harpist
• The Storys, rock band
• Elin Manahan Thomas, soprano
• Trampolene, rock band
• Bonnie Tyler, singer
• Viva Machine, alternative rock group
• Gareth Walters, composer
• John Weathers, rock drummer
• Terry Williams, drummer (Dire Straits)

Politicians

• Donald Anderson, Baron Anderson of Swansea
• Suzy Davies
• Sir John Dillwyn-Llewellyn, 1st Baronet
• Nigel Evans
• Ted Grace
• David Grenfell
• Mike Hedges
• Michael Heseltine
• Michael Howard
• Huw Irranca-Davies
• Siân James
• William Albert Jenkins
• Carwyn Jones
• David Brynmor Jones
• Leifchild Leif-Jones, 1st Baron Rhayader
• Sir Julian Lewis
• Percy Morris
• Colin Phipps
• Gwyn Prosser
• Hugh Rees
• Rees G. Richards

Religious leaders

• Cenydd, saint and hermit
• Graham Charles Chadwick, bishop, anti-apartheid campaigner
• Llewellyn Henry Gwynne, bishop in Sudan
• Griffith John, Christian missionary and translator in China
• Norman Matthews, chancellor of the Llandaff diocese
• Anthony Pierce, bishop of Swansea and Brecon
• Evan Roberts, minister
• Glyn Simon, archbishop of Wales
• Rhys Derrick Chamberlain Walters, dean of the Liverpool Anglican cathedral
• Rowan Williams, archbishop of Canterbury
• Morris Bidwell, 17th century Puritan priest

Sports people

• Jimmy Austin, baseball player
• Nicole Cooke, cyclist
• Brian Curvis, boxer
• Dai Dower, boxer
• Tracy Edwards, yachtswoman
• Philip George, cricketer
• Nikara Jenkins, rhythmic gymnast
• Alan Jones, cricketer
• Eifion Jones, cricketer
• Simon Jones, cricketer
• Enzo Maccarinelli, boxer
• Gilbert Parkhouse, cricketer
• Carl Roberts, cricketer
• Don Shepherd, cricketer
• Non Stanford, 2013 World Champion triathlete
• Gary Taylor, 1993 World's Strongest Man
• Rob Terry, wrestler
• Imad Wasim, cricketer, born in Swansea but represents Pakistan

Footballers

• Daniel Alfei
• Ivor Allchurch
• John Charles
• Mel Charles
• Chris Coleman
• Ray Daniel
• Richard Duffy
• Trevor Ford
• Bill Harris
• Mark Harris
• John Hartson
• Robbie James
• Cliff Jones
• Dennis Lambourne
• Aaron Lewis
• Andy Melville
• Mel Nurse
• Jackie Roberts
• Joe Rodon
• Dean Saunders
• Gary Sprake

Rugby players

• William Richard Arnold
• Dan Biggar
• Bleddyn Bowen
• Mervyn Davies
• James Hook
• Alun Wyn Jones
• Ivor Jones
• Lewis Jones
• Ryan Jones
• Douglas Marsden-Jones
• Paul Moriarty
• Richard Moriarty
• George Lockwood Morris
• Dicky Owen
• Idwal Rees
• Billy Trew
• Shane Williams

Writers

• Martin Amis, novelist
• Mary Balogh, novelist
• Russell T Davies, Doctor Who screenwriter
• Amy Dillwyn, novelist and businesswoman
• Joe Dunthorne, poet, novelist
• Mark Ellis, author
• Stuart Evans (1934–1994), novelist and poet
• Paul Ferris
• Iris Gower, novelist
• Bryn Griffiths, poet
• Cyril Gwynn, oral poet
• Ann Hatton, novelist
• Nigel Jenkins, poet
• Stephen Knight, poet
• Gary Ley, novelist
• Bob Lock, novelist
• Ruth Manning-Sanders, children's author and poet
• Jon Mitchell, author and journalist
• T. J. Morgan
• Alex Norris, cartoonist
• John Ormond, poet
• John Pook, poet
• Jason Shepherd, author and Welsh language advocate
• Dylan Thomas, poet/playwright
• Vernon Watkins, poet
• Harri Webb, poet

Other

• Silvanus Bevan, FRS, apothecary
• Sybil Connolly, fashion designer
• Catherine Lynch, 19th-century petty criminal
• Edgar Evans, Antarctic explorer
• Francis Grenfell, 1st Baron Grenfell, field marshal and Egyptologist
• Frederick Higginson, RAF fighter ace
• Hugh Llewellyn Glyn Hughes, medical administrator
• Andrew Jones, film maker
• Edward Kenway, pirate, assassin
• Princess Lilian, Duchess of Halland
• John Dillwyn Llewelyn, pioneer photographer, botanist
• Sean Mathias, theatre director, film director
• David Miles, economist
• Beau Nash, socialite, dandy
• Heather Nicholson, animal rights activist
• Red Lady of Paviland, Upper Palaeolithic remains
• Henry Pheloung, New Zealand bandsman, labourer and carrier
• Richard Valentine Pitchford, 'Carlini', magician and entertainer
• Glynn Vivian, art collector
• Alan Woods, political theorist