A 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
• David Roblin (physician), physician, pharma and biotech leader
• 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

See also

• Category:Welsh scientists
• List of scientists