This is a list of engineers and inventors from Cornwall, England, United Kingdom.
John Arnold, watchmaker and pioneer of the marine chronometer
William Bickford, inventor of the safety fuse
Joseph Henry Collins, mining engineer, mineralogist and geologist
Sir John Coode, civil engineer
William Cookworthy, discoverer of china clay (kaolinite) in Cornwall
Sir Humphry Davy, scientist, inventor and President of the Royal Society
Sir Goldsworthy Gurney, inventor of limelight
Jonathan Hornblower, inventor of the compound engine and the steam valve
William Husband, civil and mechanical engineer
Thomas Brown Jordan, engineer
Michael Loam, inventor of the man engine
Sir Thomas Matthews, civil engineer and builder of lighthouses
William Murdoch, engineer, inventor and sometime Cornish resident
Andrew Pears, inventor of transparent soap
William Westcott Rundell, inventor and engineer from Falmouth
Adrian Stephens, inventor of the steam whistle
Richard Tangye, engineer
John Taylor, inventor of the Cornish rolls
Joseph Thomas, architect and civil engineer
Joseph Treffry, engineer and industrialist
Henry Trengrouse, inventor of a rocket-powered maritime rescue system
Richard Trevithick, inventor, engineer and builder of the first steam locomotive
Robert Trewhella (1830-1909; :it:Robert Trewhella), railway engineer and contractor Andrew Vivian, Trevithick's cousin and collaborator, and captain of Dolcoath Mine Arthur Woolf, inventor of the high pressure compound steam engine