List of Welsh scientists

Granville Beynon, physicist
Edward George Bowen, physicist
Gareth Brenton, physicist and chemist
Douglas Brewer, physicist
David Brunt, meteorologist
Ronald Burge, professor of physics
Keith Burnett,physicist
Kathleen E. Carpenter, freshwater ecologist
Alan Cox, computer scientist
Joan Curran, physicist
Edgeworth David, geologist and Antarctic explorer
Donald Davies, computer scientist and co-inventor of packet switching
Rhisiart Morgan Davies, physicist
Laurence Eaves, physicist
Dianne Edwards, palaeobotanist
Sam Edwards, physicist
Lyn Evans, physicist
William Frost, pioneer designer of aeroplanes
David Edward Hughes, radio and audio pioneer
Mary Gillham, naturalist
John L. Harper, botanist
Steve Jones, geneticist
William Jones, mathematician
Brian Josephson, theoretical physicist
John Maddox, scientist and science journalist
Lily Newton, botanist and vice-principal at the University of Wales
Emyr Jones Parry, scientist and diplomat
Robert Recorde, physician and mathematician
Emlyn Rhoderick, solid state physicist
Bertrand Russell, philosopher, logician, mathematician, historian, and social critic
John Meurig Thomas, solid state chemist
Alfred Russel Wallace, naturalist, explorer, geographer, anthropologist, and evolutionary biologist