Bryan Donkin (1768–1855) – associated with paper making and printing machinery, tinned food, beam engines, gas valves and the Babbage difference engine; employed on civil engineering projects such as the Thames Tunnel, Chatham Docks and Caledonian Canal; member of Royal Society of Arts, Institution of Civil Engineers, and the Smeatonian Society of Civil Engineers; founder member of the Royal Astronomical Society
Cornelius Drebbel (1572–1633) – inventor of the first navigable submarine
Mohammad Reza Eslami (born 1945) – Iranian scientist and professor of Mechanical Engineering atTehran Polytechnic (Amirkabir University of Technology), Tehran, Iran
John Smeaton (1724–1792) – principally a civil engineer, but made numerous improvements toNewcomen's steam engine
Edward Somerset, 2nd Marquess of Worcester, (c. 1601–1667) – numerous mechanical innovations as described in "Century of Inventions" (1663)
Rebecca Sparling, P.E. (1910–1996) – professional engineer licensed in mechanical engineering, innovations in high-temperature metallurgy and nondestructive test methods, including simpler liquiddye penetrant inspection technique
Sir William Stanier (1876–1965) – Chief Mechanical Engineer of the London, Midland and Scottish Railway
Wernher von Braun (1912–1977) – mechanical engineer, space architect credited with inventing theV-2 rocket for Nazi Germany and theSaturn V for the United States
