Editing List of inventors

{{Short description|None}}
This is a of people who are described as being inventors or are credited with an [[invention]].

==Alphabetical list==
{{Compact TOC|seealso=yes|refs=yes|side=yes|nobreak=yes}}

===A===
* [[Vitaly Abalakov]] (1906–1986), Russia – [[Spring-loaded camming device|camming devices]], [[Abalakov thread]] (or V-thread), gearless ice climbing anchor
* [[Ernst Abbe|Ernst Karl Abbe]] (1840–1905), Germany – [[Condenser (microscope)]], [[Apochromat|apochromatic lens]], [[refractometer]]
* [[Hovannes Adamian]] (1879–1932), [[USSR]]/[[Russia]]/[[Armenia]] – tricolor principle of the [[color television]]
* [[Samuel W. Alderson]] (1914–2005), U.S. – [[crash test dummy]]
* [[Alexandre Alexeieff]] (1901–1982), Russia/France – [[Pinscreen]] animation (with his wife [[Claire Parker]])
* [[Rostislav Alexeyev]] (1916–1980), Russia/USSR – [[Ekranoplan]]
* [[Randi Altschul]] (born 1960), U.S. – Disposable [[cellphone]]
* [[Abram Alikhanov]] (1904–1970), Armenia/USSR – [[Soviet atomic bomb]], [[nuclear reactor]]
* [[Bruce Ames]] (1928-2024), U.S. – [[Ames test]] (Cell biology)
* [[Giovanni Battista Amici]] (1786–1863), Italy – [[Dipleidoscope]], [[Amici prism]]
* [[Ruth Amos]] (born 1989), UK – StairSteady
* [[Mary Anderson (inventor)|Mary Anderson]] (1866–1953), U.S. – [[windshield wiper]] blade
* [[Momofuku Ando]] (1910–2007), Japan – [[Instant noodles]]
* [[Hal Anger]] (1920–2005), U.S. – [[Well counter]] (radioactivity measurements), [[gamma camera]]
* [[Anders Knutsson Ångström]] (1888–1981), Sweden – [[Pyranometer]]
* [[Ottomar Anschütz]] (1846–1907), Germany – [[Focal-plane shutter|single-curtain focal-plane shutter]], [[electrotachyscope]]
* [[Hermann Anschütz-Kaempfe]] (1872–1931), Germany – [[Gyrocompass]]
* [[Virginia Apgar]] (1909–1974), U.S. – [[Apgar score]] (for newborn babies)
* [[Nicolas Appert]] (1749–1841), France – [[canning]] ([[food preservation]]) using glass bottles, see also [[Peter Durand]]
* [[Archimedes]] (c. 287–212 BC), Greece – [[Archimedes' screw]]
* [[Guido of Arezzo]] (c. 991–c. 1033), Italy – [[Guidonian notation]], see [[musical notation]] and also [[staff (music)]]
* [[Ami Argand]] (1750–1803), France – [[Argand lamp]]
* [[William George Armstrong]] (1810–1900), UK – [[hydraulic accumulator]]
* [[Neil Arnott]] (1788–1874), UK – [[waterbed]]
* [[Emil Artin]] (1889–1962), Armenia/Austria/Germany – modern [[abstract algebra]]
* [[Joseph Aspdin]] (1788–1855), UK – [[Portland cement]]
* [[John Vincent Atanasoff]] (1903–1995), Bulgaria/U.S. – electronic digital [[computer]]
* [[Marcel Audiffren]], France – refrigeration, patent
* [[Alexander Anim-Mensah]], Ghanaian/American – Chemical engineer, inventor

===B===
* [[Boris Babayan]] (born 1933), [[Armenia]]/USSR/Russia – [[Soviet computer]]s, [[Superscalar processor]]
* [[Charles Babbage]] (1791–1871), UK – [[Analytical engine]] (semi-automatic)
* [[Tabitha Babbit]] (1779–1853), U.S. – [[Saw mill]] [[circular saw]]
* [[Victor Babeș]] (1854–1926), Romania – [[Babesia]], the founder of serum therapy
* [[Leo Baekeland]] (1863–1944), [[Demographics of Belgium|Belgian]]–American – Velox photographic paper and [[Bakelite]]
* [[Ralph H. Baer]] (1922–2014), German born American – [[video game console]]
* [[Adolf von Baeyer]] (1835–1917), Germany – [[Fluorescein]], synthetic [[Indigo dye]], [[Phenolphthalein]]
* [[John Logie Baird]] (1888–1946), Scotland – World's first working [[Mechanical television|television]], 26 January 1926 and electronic [[colour television]]
* [[Islamic astronomy|Abi Bakr of Isfahan]] (c. 1235), [[History of Iran|Persia]]/[[Iran]] – mechanical [[gear]]ed [[astrolabe]] with [[lunisolar calendar]]
* [[George Ballas]] (1925–2011), U.S. – [[String trimmer]]
* [[Frederick Banting]] (1891–1941), Canada – technique to isolate [[Insulin]]
* [[Vladimir Baranov-Rossine]] (1888–1944), Russia/France – [[Optophonic Piano]]
* [[John Barber (engineer)|John Barber]] (1734–1801), UK – [[gas turbine]]
* [[John Bardeen]] (1908–1991), U.S. – co-inventor of the [[transistor]], with [[Walter Houser Brattain|Brattain]] and [[William Shockley|Schockley]]
* [[Vladimir Barmin]] (1909–1993), Russia – first rocket [[launch complex]] ([[spaceport]])
* [[Anthony R. Barringer]] (1925–2009), Canada/U.S. – INPUT (Induced Pulse Transient) airborne electromagnetic system
* [[Earl W. Bascom]] (1906–1995), Canada/U.S. – rodeo bucking chute (1916 and 1919), rodeo bronc saddle (1922), rodeo bareback rigging (1924), rodeo riding chaps (1926)
* [[Nikolay Basov]] (1922–2001), Russia – co-inventor of [[laser]] and [[maser]]
* [[Patricia Bath]] (1942–2019), U.S. – inventor of laser cataract surgery
* [[Émile Baudot]] (1845–1903), France – [[Baudot code]]
* [[Eugen Baumann]] (1846–1896), Germany – [[PVC]]
* [[Trevor Baylis]] (1937–2018), UK – a [[wind-up radio]]
* [[Maria Beasley]] (1847–1904), U.S. – [[barrel|barrel-hooping]] machine, improved [[life raft]]
* [[Francis Beaufort]] (1774–1857), Ireland/UK – [[Beaufort scale]], [[Beaufort cipher]]
* [[Hans Beck]] (1929–2009), Germany – inventor of [[Playmobil]] toys
* [[Arnold O. Beckman]] (1900–2004), U.S. – electric [[pH]] meter
* [[Vladimir Bekhterev]] (1857–1927), Russia – [[Bekhterev's Mixture]]
* [[Josip Belušić]] (1847–1905), Croatia – electric [[speedometer]]
* [[Michael Bell (actor)|Michael Bell]] (born 1938), together with [[Melanie Chartoff]] (born 1950), U.S. – a gray water recycling device for reuse of shower and sink water in the home
* [[Alexander Graham Bell]] (1847–1922), UK, Canada, and U.S. – [[telephone]]
* [[Nikolay Benardos]] (1842–1905), [[Russian Empire]] – [[arc welding]] (specifically [[carbon arc welding]], the first arc welding method)
* [[Ruth R. Benerito]] (1916–2013), U.S. – [[Permanent press]] (no-iron clothing)
* [[Miriam Benjamin]] (1861–1947), Washington, D.C. – [[Miriam Benjamin|Gong and signal chair]] (adopted by House of Representatives and precursor to flight attendant signal system)
* [[William R. Bennett Jr.]] (1930–2008), together with [[Ali Javan]] (1926–2016), U.S./Iran – [[Gas laser]] (Helium-Neon)
* [[Melitta Bentz]] (1873–1950), Germany – paper [[Coffee filter]]
* [[Karl Benz]] (1844–1929), Germany – the petrol-powered [[automobile]]
* [[Hans Berger]] (1873–1941), Germany – first human [[Electroencephalography|EEG]] and its development
* [[Friedrich Bergius]] (1884–1949), Germany – [[Bergius process]] (synthetic fuel from coal)
* [[Emile Berliner]] (1851–1929), Germany and U.S. – the disc record [[phonograph|gramophone]]
* [[Tim Berners-Lee]] (born 1955), UK – with [[Robert Cailliau]], the [[World Wide Web]]
* [[Marcellin Berthelot]] (1827–1907), France – [[Berthelot's reagent]] (chemistry)
* [[Heinrich Bertsch]] (1897–1981), Germany – first fully synthetic [[laundry detergent]] "Fewa" (chemistry)
* [[Charles Best (medical scientist)|Charles Best]] (1899–1978), Canada – [[Insulin]] (chemistry)
* [[Max Bielschowsky]] (1869–1940), Germany – [[Bielschowsky stain]] (histology)
* [[Alfred Binet]] (1857–1911), France – with his student [[Théodore Simon]] (1872–1961), first practical [[Intelligence test]]
* [[Lucio Bini]] (1908–1964), together with [[Ugo Cerletti]] (1877–1963), Italy – [[Electroconvulsive therapy]]
* [[Gerd Binnig]] (born 1947), with [[Christoph Gerber]], [[Calvin Quate]] and [[Heinrich Rohrer]], Germany/Switzerland/U.S. – [[Atomic force microscope]] and [[Scanning tunneling microscope]]
* [[Clarence Birdseye]] (1886–1956), U.S. – [[Flash freezing]]
* [[László Bíró]] (1899–1985), Hungary – [[Ballpoint pen]]
* [[Thor Bjørklund]] (1889–1975), Norway – [[Cheese knife#Cheese slicer|Cheese slicer]]
* [[J. Stuart Blackton]] (1875–1941), U.S. – [[Stop-motion film]]
* [[Otto Blathy]] (1860–1939), Hungary – co-inventor of the [[transformer]], [[wattmeter]], [[alternating current]] (AC) and [[turbogenerator]]
* [[John Blenkinsop]] (1783–1831), UK – [[Rack railway#Blenkinsop|Blenkinsop rack railway system]]
* [[Charles K. Bliss]] (1897–1985), Austro-Hungary/Australia – [[Blissymbols]]
* [[Katharine Burr Blodgett]] (1898–1979), U.S. – nonreflective glass
* [[Alan Blumlein]] (1903–1942), UK – [[stereo]]
* [[David Boggs]] (1950–2022), U.S. – [[Ethernet]]
* [[Nils Bohlin]] (1920–2002), Sweden – the three-point [[seat belt]]
* [[Sarah Boone]] (1832–1908), U.S. – improved [[ironing board]] design
* [[Charlie Booth]] (1903–2008), Australia – [[Starting blocks]]
* [[Bob Born]] (1924–2023), U.S. – automated [[Peeps|marshmallow confection]] production
* [[Sam Born]] (1891–1959), Russia/U.S. – [[lollipop]]-making machine
* [[Jagdish Chandra Bose]] (1858–1937), India – [[Crescograph]]
* [[Matthew Piers Watt Boulton]] (1820–1894), UK – [[aileron]]
* [[Seth Boyden]] (1788–1870), U.S. – nail-making machine
* [[Herbert Boyer]] (born 1936), together with [[Paul Berg]] (1926–2023), and [[Stanley Norman Cohen]] (1935–), U.S. – created first [[Genetically modified organism]]
* [[Willard Boyle]] (1924–2011) together with [[George E. Smith]] (1930–2025), U.S. – [[Charge-coupled device]] (CCD)
* [[Hugh Bradner]] (1915–2008), U.S. – [[Wetsuit]]
* [[Louis Braille]] (1809–1852), France – [[Braille|Braille writing system]], [[Braille music|Braille musical notation]]
* [[Archie Brain]] (born 1942), UK – [[Laryngeal mask]] 
* [[Jacques E. Brandenberger]] (1872–1954), Switzerland – [[Cellophane]]
* [[Édouard Branly]] (1844–1940), France – [[Coherer]]
* [[Charles F. Brannock]] (1903–1992), U.S. – [[Brannock Device]] (shoe size)
* [[Walter Houser Brattain]] (1902–1987), U.S. – co-inventor of the [[transistor]]
* [[Karl Ferdinand Braun]] (1850–1918), Germany – [[cathode-ray tube]] [[oscilloscope]]
* [[Wernher von Braun]] (1912–1977), Germany/U.S. – [[V-2 rocket]], [[Saturn V rocket]]
* [[Stanislav Brebera]] (1925–2012), Czech Republic – [[Semtex]] explosive
* [[David Brewster]] (1781–1868), UK – [[Kaleidoscope]]
* [[Charles B. Brooks]] (1865–1908), U.S. – first self-propelled [[street sweeping]] truck
* [[Rachel Fuller Brown]] (1898–1980), U.S. – [[Nystatin]], the world's first antifungal antibiotic
* [[William C. Brown]] (1916–1999), U.S. – [[crossed-field amplifier]]
* [[Marie Van Brittan Brown]] (1922–1999), U.S. – home security system
* [[Friedrich Wilhelm Gustav Bruhn]] (1853–1927), Germany – [[Taximeter]]
* [[Nikolay Brusentsov]] (1925–2014), [[USSR]], [[Russia]] – [[ternary computer]] (''[[Setun]]'')
* [[Dudley Allen Buck]] (1927–1959), U.S. – [[Cryotron]], [[content-addressable memory]]
* [[Edwin Beard Budding]] (1795–1846), UK – [[lawnmower]]
* [[Gersh Budker]] (1918–1977), Russia – [[electron cooling]], co-inventor of [[collider]]
* [[Edward Bull]] (1759–1798), England – Bull engine (a modified steam engine)
* [[Robert Bunsen]] (1811–1899), Germany – [[Bunsen burner]]
* [[Henry Burden]] (1791–1871), Scotland and U.S. – Horseshoe machine, first usable iron [[railroad spike]]

===C===
* [[Tim Cook]]-the CEO of Apple
* [[Ve Elizabeth Cadie]] (1893–1956), U.S. – heat insulating handle for small home appliances
* [[Herminie Cadolle]] (1845–1926), France – modern brassiere
* [[Robert Cailliau]] (born 1947), Belgium – with [[Tim Berners-Lee]], the [[World Wide Web]]
* [[Edward A. Calahan]] (1838–1912), U.S. – Stock [[ticker tape]]
* [[Nicholas Callan]] (1799–1864), Ireland – [[Induction coil]]
* [[Spéranza Calo-Séailles]] (1885–1949), Greece – "Lap" decorative concrete
* [[Alan Archibald Campbell-Swinton]] (1863–1930), Scotland – [[Television]]
* [[Tullio Campagnolo]] (1901–1983), Italy – [[Quick release skewer]]
* [[Charles Cantor]] (born 1942), U.S. – [[Pulsed-field gel electrophoresis]] (molecular biology)
* [[Mario Capecchi|Mario Ramberg Capecchi]] (born 1937), together with [[Martin Evans|Sir Martin John Evans]] (born 1941), and [[Oliver Smithies]] (1925–2017), U.S. – [[Gene targeting]]
* [[Roxey Ann Caplin]] (1793–1888), UK – [[Victorian fashion|Victorian]]-style corset
* [[Arturo Caprotti]] (1881–1938), Italy – [[Caprotti valve gear]]
* [[Gerolamo Cardano]] (1501–1576), Italy – [[Cardan grille]] (cryptography)
* [[Philip Cardew]] (1851–1910), UK – Hot-wire [[galvanometer]]
* [[Chester Carlson]] (1906–1968), U.S. – [[Xerography|Xerographic copier]]
* [[Wallace Carothers]] (1896–1937), U.S. – [[Nylon]] and [[Neoprene]] (together with Arnold Collins)
* [[Antonio Benedetto Carpano]] (1764–1815), Italy – [[Vermouth]]
* [[Mary P. Carpenter]] (1840–1900), U.S. – mosquito nets, mosquito traps
* [[Giovanni Caselli]] (1815–1891), Italy/France – [[Pantelegraph]]
* [[George Cayley]] (1773–1857), UK – [[Wire wheels|tension-spoke wheels]]
* [[Anders Celsius]] (1701–1744), Sweden – [[Celsius]] temperature scale
* [[Vint Cerf]] (born 1943), together with [[Bob Kahn]] (1938–), U.S. – [[Internet Protocol]] (IP)
* [[Claude Shannon]] (1916–2016), founder of [[information theory]] and [[Cryptography|modern cryptography]], invented [[Minivac 601]], and co-invented the first wearable computer (with [[Edward O. Thorp]])
* [[Ugo Cerletti]] (1877–1963), together with [[Lucio Bini]] (1908–1964), Italy – [[Electroconvulsive therapy]]
* [[Leona Chalmers]] (c. 1937), U.S. – modern [[menstrual cup]]
* [[Charles Chamberland]] (1851–1908), France – [[Chamberland filter]]
* [[Min Chueh Chang]] (1908–1991), together with [[Gregory Goodwin Pincus]] (1903–1967), U.S./China – [[Combined oral contraceptive pill]]
* [[Thomas Chang]] (born 1933), Canada/China – [[Artificial cell]]
* [[Emmett Chapman]] (1936–2021), U.S. – [[Chapman Stick]]
* [[Claude Chappe]] (1763–1805), France – [[Semaphore line]]
* [[Melanie Chartoff]] (born 1950), together with [[Michael Bell (actor)|Michael Bell]] (born 1938), U.S. – a gray water recycling device for reuse of shower and sink water in the home
* [[David Chaum]] (born 1955), U.S. – [[David Chaum#New types of digital signatures|Digital signatures]], [[ecash]]
* [[Vladimir Chelomey]] (1914–1984), [[USSR]] – First [[space station]] ([[Salyut program|Salyut]])
* [[Joyce Chen (chef)|Joyce Chen]] (1917–1994), China – stir fry pan
* [[Pavel Cherenkov]] (1904–1990), [[USSR]] – [[Cherenkov detector]]
* [[Evgeniy Chertovsky]] (1902–1961), Russia – [[pressure suit]]
* [[Alicia Chong Rodriguez]] – American engineer and inventor
* [[Ward Christensen]] (1945-2024), U.S. – [[Bulletin board system]]
* [[Ole Kirk Christiansen]] (1891–1958), Denmark – Creator of [[Lego]]
* [[Samuel Hunter Christie]] (1784–1865), UK – [[Wheatstone bridge]]
* [[Juan de la Cierva]] (1895–1936), Spain – the [[autogyro]]
* [[Charles Clagget]] (1740–1795), UK – Improvements for musical instruments
* [[Leland Clark]] (1918–2005), U.S. – [[Clark electrode]] (medicine)
* [[Georges Claude]] (1870–1960), France – [[neon lamp]]
* [[Adelaide Claxton]] (fl 1860s–1890s), UK – ear caps
* [[Madame Clicquot Ponsardin]] (1777–1866), France – Champagne riddling
* [[Henri Marie Coandă]] (1886–1972), Romania – [[Coandă effect]]
* [[Josephine Cochrane]] (1839–1913), U.S. – [[dishwasher]]
* [[Christopher Cockerell]] (1910–1999), UK – [[Hovercraft]]
* [[Aeneas Coffey]] (1780–1852), Ireland – [[Coffey still]]
* [[Sir Henry Cole]] (1808–1882), UK – [[Christmas card]]
* [[Samuel Colt]] (1814–1862), U.S. – [[Revolver]] development
* [[Sir William Congreve, 2nd Baronet|Sir William Congreve]] (1772–1828), UK – [[Congreve rocket]]
* [[George Constantinescu]] (1881–1965), [[Romania]] – creator of the [[theory of sonics]], a new branch of [[continuum mechanics]]
* [[Albert Coons]] (1912–1978), U.S. – [[Immunofluorescence]] (microscopy)
* [[Martin Cooper (inventor)|Martin Cooper]] (born 1928), U.S. – [[Mobile phone]]
* [[Harry Coover]] (1917–2011), U.S. – [[Cyanoacrylate|Super Glue]]
* [[Lloyd Groff Copeman]] (1865–1956), U.S. – [[Electric stove]]
* [[Cornelis Corneliszoon]] (1550–1607), The Netherlands – wind powered [[sawmill]]
* [[Alexander Coucoulas]] (born 1933), U.S. – [[Thermosonic bonding]]
* [[Wallace H. Coulter]] (1913–1998), U.S. – [[Coulter counter|Coulter principle]]
* [[Jacques-Yves Cousteau|Jacques Cousteau]] (1910–1997), France – co-inventor of the [[Aqua-Lung|aqualung]] and the [[Nikonos]] underwater camera
* [[Jack Cover|John "Jack" Higson Cover Jr.]] (1920–2009), U.S. – [[Taser]]
* [[Minnie Crabb]] (1885–1974), Australia – Crabb-Hulme Braille Printing Press
* [[William Crookes]] (1832–1919), UK – [[Crookes radiometer]], [[Crookes tube]]
* [[Bartolomeo Cristofori]] (1655–1731), Italy – [[piano]]
* [[Caresse Crosby]] (1891–1970), U.S. – Modern [[bra]] 
* [[S. Scott Crump]] (inv. c. 1989), U.S. – [[fused deposition modeling]]
* [[Nicolas-Joseph Cugnot]] (1725–1804), France – first [[steam-engine|steam-powered]] road vehicle
* [[William Cullen]] (1710–1790), UK – first artificial [[refrigerator]]
* [[Rose Cumming]] (1887–1968), U.S. – metallic wallpaper
* [[Emily Cummins]] (born 1987), UK – sustainable refrigerator, water carrier, toothpaste dispenser
* [[Marie Curie]] (1867–1934), Poland –  portable X-ray units ("Little Curies"),<ref>{{Cite web |date=2020-02-25 |title=Marie Curie |url=https://kids.nationalgeographic.com/history/article/marie-curie |access-date=2023-03-08 |website=History |language=en}}</ref> radium-emanation needles<ref>{{Cite web |title=Marie Curie and the Science of Radioactivity |url=https://history.aip.org/exhibits/curie |access-date=2023-03-08 |website=history.aip.org}}</ref>
* [[Jamie Lee Curtis]] (born 1958), U.S. – diapers
* [[Jan Czochralski]] (1885–1953), Poland / Germany – [[Czochralski process]] (crystal growth)

===D===
* [[Gustaf Dalén|Nils Gustaf Dalén]] (1869–1937), Sweden – [[AGA cooker]], [[Dalén light]], [[Agamassan]], [[Sun valve]] for lighthouses and buoys
* [[John Frederic Daniell]] (1790–1845), UK – [[Daniell cell]]
* [[Corradino D'Ascanio]] (1891–1981), Italy – [[Vespa]] scooter
* [[Leonardo da Vinci]] (1452–1519), Italy – [[helicopter]], [[tank]]s, and [[parachutes]] for safety
* [[Raymond Damadian]] (1936–2022), [[Armenia]]/U.S. – [[Magnetic resonance imaging]] (MRI)
* [[Robert Davidson (inventor)|Robert Davidson]] (1804–1894), Scotland – [[electric locomotive]]
* [[Jacob Davis (inventor)|Jacob Davis]] (1868–1908), U.S. – [[Jeans#Riveted jeans|Riveted jeans]]
* [[Humphry Davy]] (1778–1829), UK – [[Davy lamp|Davy miners lamp]]
* [[Joseph Day (inventor)|Joseph Day]] (1855–1946), UK – the crankcase-compression [[two-stroke engine]]
* [[Lee de Forest]] (1873–1961), U.S. – [[Phonofilm]], [[triode]]
* [[Fe del Mundo]] (1911–2011), Philippines – non-electric incubator
* [[Yuri Nikolaevich Denisyuk]] (1927–2006), Russia – 3D [[holography]]
* [[Robert H. Dennard]] (1932–2024), U.S. – [[Dynamic random-access memory]] (DRAM)
* [[Miksa Déri]] (1854–1938), Hungary – co-inventor of an improved closed-core [[transformer]]
* [[Robert DeStefano]] (born 1962), U.S. – exercise equipment
* [[James Dewar]] (1842–1923), UK – [[vacuum flask|Thermos flask]]
* [[Aleksandr Dianin]] (1851–1918), Russia – [[Bisphenol A]], [[Dianin's compound]]
* [[W.K. Dickson|William Kennedy Laurie Dickson]] (1860–1935), UK – [[motion picture camera]]
* [[Philip Diehl (inventor)|Philip Diehl]] (1847–1913), U.S. – [[Ceiling fan]]
* [[Rudolf Diesel]] (1858–1913), Germany – [[Diesel engine]]
* [[William H. Dobelle]] (1943–2004), U.S. – [[Visual prosthesis#Dobelle Eye|Dobelle Eye]]
* [[Johann Wolfgang Döbereiner]] (1780–1849), Germany – [[Döbereiner's lamp]] (chemistry)
* [[Toshitada Doi]] (born 1943), Japan, together with Joop Sinjou, Netherlands – [[Compact disc]]
* [[Ray Dolby]] (1933–2013), U.S. – [[Dolby noise-reduction system]]
* [[Mikhail Dolivo-Dobrovolsky]] (1862–1919), Poland/Russia – [[three-phase electric power]]
* [[Marion Donovan|Marion O'Brien Donovan]] (1917–1998), U.S. – [[Diaper|Waterproof diaper]]
* [[Hub van Doorne]] (1900–1979), Netherlands – [[Variomatic]] [[continuously variable transmission]]
* [[John Thompson Dorrance]] (1873–1930), U.S. – [[Soup#Canned|Condensed soup]]
* [[Amanda Minnie Douglas]] (1831–1916) – writer and inventor (portable folding mosquito net frame)
* [[Charles Dow]] (1851–1902), U.S. – [[Dow Jones Industrial Average]]
* [[Mulalo Doyoyo]] (1970–2024), South Africa/U.S. – [[Cenocell]] – cementless concrete
* [[Anastase Dragomir]] (1896–1966), [[Romania]] – [[Ejection seat]]
* [[Karl Drais]] (1785–1851), Germany – [[dandy horse]], [[Draisine]]
* [[Richard Drew (Inventor)|Richard Drew]] (1899–1980), U.S. – [[Masking tape]]
* [[John Boyd Dunlop]] (1840–1921), UK – first practical [[pneumatic tyre]]
* [[Cyril Duquet]] (1841–1922), Canada – [[Handset#Telephony|Telephone handset]]
* [[Alexey Dushkin]] (1904–1977), Russia – [[deep column station]]
* [[James Dyson]] (born 1947), UK – Dual Cyclone bagless vacuum cleaner, incorporating the principles of [[cyclonic separation]].

===E===
* [[George Eastman]] (1854–1932), U.S. – [[roll film]]
* [[J. Presper Eckert]] (1919–1995), U.S. – [[ENIAC|ENIAC – the first general purpose programmable digital computer]]
* [[Thomas Alva Edison]] (1847–1931), U.S. – [[phonograph]], commercially practical [[incandescent light bulb]], [[List of Edison patents|etc.]]
* [[Pehr Victor Edman]] (1916–1977), Sweden – [[Edman degradation]] for [[Protein sequencing]]
* [[Robert Edwards (physiologist)|Sir Robert Geoffrey Edwards]] (1925–2013), UK – [[In vitro fertilisation]]
* [[Ellen Eglin]] (1849–c. 1890), U.S. – [[Clothes wringer]]
* [[Brendan Eich]] (born 1961), U.S. – [[JavaScript]] (programming language)
* [[Willem Einthoven]] (1860–1927), The Netherlands – the [[electrocardiogram]]
* [[Benjamin Eisenstadt]] (1906–1996), U.S. – [[Sugar packet]]
* [[Paul Eisler]] (1907–1992), Austria/U.S. – [[Printed circuit board]] (electronics)
* [[Giorgi Eliava]] (1892–1937), together with [[Félix d'Herelle]] (1873–1949), France / Georgia – [[Phage therapy]]
* [[Ivan Elmanov]], Russia – first [[monorail]] (horse-drawn)
* [[Rune Elmqvist]] (1906–1996), Sweden – implantable pacemaker
* [[John Haven Emerson]] (1906–1997), U.S. – [[Negative pressure ventilator|iron lung]]
* [[Douglas Engelbart]] (1925–2013), U.S. – the [[computer mouse]]
* [[Michael D. Ercolino]] (1906–1982), U.S. – TV antenna's
* [[John Ericsson]] (1803–1889), Sweden – the two screw-propeller
* [[Emil Erlenmeyer]] (1825–1909), Germany – [[Erlenmeyer flask]]
* [[Martin Evans|Sir Martin John Evans]] (born 1941), together with [[Mario Capecchi|Mario Ramberg Capecchi]] (born 1937), and [[Oliver Smithies]] (1925–2017), U.S. – [[Knockout mouse]], [[Gene targeting]]
* [[Ole Evinrude]] (1877–1934), Norway – [[outboard motor]]

===F===
* [[Charles Fabry]] (1867–1945), together with [[Alfred Perot]] (1863–1925), France – [[Fabry–Pérot interferometer]] (physics)
* [[Samuel Face]] (1923–2001), U.S. – concrete flatness/levelness technology; [[Lightning Switch]]
* [[Federico Faggin]] (born 1941), Italy – [[microprocessor]]
* [[Daniel Gabriel Fahrenheit]] (1686–1736), The Netherlands – [[Fahrenheit]] temperature scale, [[Mercury-in-glass thermometer]]
* [[Michael Faraday]] (1791–1867), UK – electric [[transformer]], [[electric motor]]
* [[Johann Maria Farina]] (1685–1766), Germany – [[Eau de Cologne]]
* [[Myra Juliet Farrell]] (1878–1957), Australia – stitchless button, [[Snap fastener|Press stud]]
* [[Philo Farnsworth]] (1906–1971), U.S. – [[electronics|electronic]] television
* [[Marga Faulstich]] (1915–1998), Germany – optical glass, lightweight lens SF 64<ref>{{Cite web |last=Office |first=European Patent |title=Women inventors |url=https://www.epo.org/news-events/in-focus/women-inventors.html |access-date=2023-03-08 |website=www.epo.org |language=en}}</ref>
* [[Muhammad al-Fazari]] (died 796/806), [[History of Iran|Persia]] – [[astrolabe]]
* [[John Fenn (chemist)|John Bennett Fenn]] (1917–2010), U.S. – [[Electrospray ionization]]
* [[Henry John Horstman Fenton]] (1854–1929), UK – [[Fenton's reagent]] (chemistry)
* [[James Fergason]] (1934–2008), U.S. – improved [[liquid crystal display]]
* [[Enrico Fermi]] (1901–1954), Italy – [[nuclear reactor]]
* [[Humberto Fernández-Morán]] (1924–1999), Venezuela – [[Scalpel|Diamond scalpel]], [[Microtome|Ultra microtome]]
* [[Michele Ferrero]] (1925–2015), Italy – [[Kinder Surprise]] = [[Kinder Eggs]], [[Nutella]]
* [[Bran Ferren]] (born 1953), U.S. – [[Pinch to zoom|Pinch-to-zoom]] (multi-touch), together with [[Danny Hillis|Daniel Hillis]]
* [[Reginald Fessenden]] (1866–1932), Canada – two-way radio
* [[Robert Feulgen]] (1884–1955), Germany – [[Feulgen stain]] (histology)
* [[Adolf Gaston Eugen Fick]] (1829–1901), Germany – [[contact lens]]
* [[Ethel Finck]] (1932–2003), U.S. – cardiac catheter
* [[Abbas Ibn Firnas]] (810–887), [[Al-Andalus]] – [[fused quartz]] and [[silica glass]], [[metronome]]
* [[Artur Fischer (inventor)|Artur Fischer]] (1919–2016) Germany – fasteners including [[fischertechnik]].
* [[Franz Joseph Emil Fischer]] (1877–1947), together with [[Fischer assay|Hans Schrader]] (1921–2012), Germany – [[Fischer assay]] (oil yield test)
* [[Franz Joseph Emil Fischer]] (1877–1947), together with [[Hans Tropsch]] (1889–1935), Germany – [[Fischer–Tropsch process]] (refinery process)
* [[Gerhard Fischer (inventor)|Gerhard Fischer]] (1899–1988), Germany/U.S. – [[metal detector|hand-held metal detector]]
* [[Paul C. Fisher]] (1913–2006), U.S. – [[Space Pen]]
* [[Edith M. Flanigen]] (born 1929), U.S. – [[zeolite Y]], molecular sieve
* [[Alexander Fleming]] (1881–1955), Scotland – [[Penicillin]]
* [[John Ambrose Fleming]] (1848–1945), UK – [[Vacuum tube|Vacuum diode]]
* [[Sandford Fleming]] (1827–1915), Canada – [[Universal Standard Time]]
* [[Nicolas Florine]] (1891–1972), [[Georgia (country)|Georgia]]/Russia/Belgium – first [[tandem rotor]] [[helicopter]] to fly freely
* [[Tommy Flowers]] (1905–1998), UK – [[Colossus computer|Colossus]] an early electronic computer.
* [[Irmgard Flügge-Lotz]] (1903–1974), U.S. – aircraft guidance systems
* [[Thomas J. Fogarty]] (born 1934), U.S. – [[Thomas J. Fogarty|Embolectomy catheter]] (medicine)
* [[Larry Fondren]], U.S. – entrepreneur, inventor and credit markets expert
* [[Eunice Newton Foote]] (1819–1888), U.S. – greenhouse effect, boot soles
* [[Enrico Forlanini]] (1848–1930), Italy – [[Enrico Forlanini|Steam helicopter]], [[hydrofoil]], [[List of Forlanini airships|Forlanini airships]]
* [[Eric Fossum]] (born 1957), U.S. – intra-pixel charge transfer in [[CMOS image sensor]]s
* [[Josephine G. Fountain]] (fl 1960), U.S.  – direct suction tracheotomy tube
* [[Jean Bernard Léon Foucault]] (1819–1868), France – [[Foucault pendulum]], [[gyroscope]], [[eddy current]]
* [[Benoît Fourneyron]] (1802–1867), France – [[water turbine]]
* [[John Fowler (agricultural engineer)|John Fowler]] (1826–1864), UK – steam-driven ploughing engine
* [[Benjamin Franklin]] (1706–1790), U.S. – the [[lightning rod|pointed lightning rod conductor]], [[bifocals|bifocal glasses]], the [[Franklin stove]], the [[glass harmonica]]
* [[Herman Frasch]] (1851–1914), Germany / U.S. – [[Frasch process]] (petrochemistry), [[Paraffin wax]] purification
* [[Ian Frazer|Ian Hector Frazer]] (born 1953), together with [[Jian Zhou]] (1957–1999), U.S./China – [[HPV vaccine]] against [[cervical cancer]]
* [[Helen Murray Free]] (1923–2021), U.S. – diabetes tests
* [[Augustin-Jean Fresnel]] (1788–1827), France – [[Fresnel lens]]
* [[Amelia Freund]] (1824–1887), Germany – cooking stove contained a "frizzler" which fried without hardening.<ref>{{Cite book |last=Stanley |first=Autumn |url=https://books.google.com/books?id=uRJt7QqA7GEC&pg=PA59 |title=Mothers and Daughters of Invention: Notes for a Revised History of Technology |date=1995 |publisher=Rutgers University Press |isbn=978-0-8135-2197-8 |language=en}}</ref>
* [[Ida Freund]] (1863–1914), UK – gas measuring tube, periodic table cupcakes
* [[William Friese-Greene]] (1855–1921), UK – [[cinematography]]
* [[Julius Fromm]] (1883–1945), Germany – first seamless [[Condom]]
* [[Arthur Fry]] (born 1931), U.S. – [[Post-it note]]
* [[Buckminster Fuller]] (1895–1983), U.S. – [[geodesic dome]]
* [[Gilhoolie|C. W. Fuller]] (inv. 1953), U.S. – [[Gilhoolie]]
* [[Robert Fulton]] (1765–1815), United States – first commercially successful [[steamboat]], first practical [[submarine]]
* [[Ivan Fyodorov (printer)|Ivan Fyodorov]] (c. 1510–1583), Russia/[[Polish–Lithuanian Commonwealth|Poland–Lithuania]] – invented [[Barrel (firearms)|multibarreled]] [[Mortar (weapon)|mortar]], introduced [[printing]] in Russia
* [[Svyatoslav Fyodorov]] (1927–2000), Russia – [[radial keratotomy]]
* [[Vladimir Grigoryevich Fyodorov|Vladimir Fyodorov]] (1874–1966), Russia – [[Fedorov Avtomat]] (first self-loading [[battle rifle]], arguably the first [[assault rifle]])

===G===
* [[Dennis Gabor]] (1900–1979), Hungarian-British – [[holography]]
* [[Boris Borisovich Galitzine]] (1862–1916), Russia – [[electromagnetism|electromagnetic]] [[seismograph]]
* [[Joseph G. Gall]] (1928–2024), U.S. – [[In situ hybridization]] (cell biology)
* [[Bill Gallagher (inventor)|Alfred William Gallagher]] (1911–1990), New Zealand – [[Electric fence]] for farmers
* [[Dmitri Z. Garbuzov|Dmitri Garbuzov]] (1940–2006), Russia/U.S. – continuous-wave-operating [[laser diode|diode lasers]] (together with [[Zhores Alferov]]), high-power diode lasers
* [[Elmer R. Gates]] (1859–1923), U.S. – foam fire extinguisher, electric loom mechanisms, magnetic & diamagnetic separators, educational toy ("box & blocks")*
* [[Richard J. Gatling]] (1818–1903), U.S. – wheat drill, first successful [[machine gun]]
* [[Georgy Gause]] (1910–1986), Russia – [[gramicidin S]], [[neomycin]], [[lincomycin]] and other [[antibiotics]]
* [[E. K. Gauzen]], Russia – [[three bolt equipment]] (early [[standard diving dress|diving costume]])
* [[Norman Gaylord]] (1923–2007), U.S. – rigid gas-permeable [[contact lens]]
* [[Karl-Hermann Geib]] (1908–1949), Germany / USSR – [[Girdler sulfide process]]
* [[King Camp Gillette]] (1855–1932), U.S. – [[Safety razor|Double-edge safety razor]] and blade
* [[Hans Wilhelm Geiger]] (1882–1945), Germany – [[Geiger counter]]
* [[Andre Geim|Andrey Geim]] (born 1958), Russia/United Kingdom – [[graphene]]
* [[Nestor Genko]] (1839–1904), Russia – [[Genko's Forest Belt]] (the first large-scale [[windbreak]] system)
* [[Christoph Gerber]] (born 1942), with [[Calvin Quate]] (1923–2019), and with [[Gerd Binnig]] (1947–), Germany/U.S./Switzerland – [[Atomic force microscope]]
* [[Friedrich Clemens Gerke]] (1801–1888), Germany – current international [[Morse code#International Morse Code|Morse code]]
* [[David Gestetner]] (1854–1939), Austria-Hungary / UK – [[Gestetner|Gestetner copier]]
* [[Alberto Gianni]] (1891–1930), Italy – Torretta butoscopica
* [[John Heysham Gibbon]] (1903–1973), U.S. – [[Heart-lung machine]]
* [[Gustav Giemsa]] (1867–1948), Germany – [[Giemsa stain]] (histology)
* [[Adolph Giesl-Gieslingen]] (1903–1992), Austria – [[Giesl ejector]]
* [[Henri Giffard]] (1825–1882), France – powered [[airship]], [[injector]]
* [[David J. Gingery]] (1932–2004), USA
* [[Donald A. Glaser]] (1926–2013), U.S. – [[Bubble chamber]]
* [[Joseph Glass (inventor)|Joseph Glass]] (1791–1867), England – chimney-sweeping apparatus
* [[Valentyn Glushko]] (1908–1989), Russia – [[hypergolic propellant]], [[Electrically powered spacecraft propulsion|electric propulsion]], Soviet [[rocket engine]]s (including world's most powerful [[liquid-fuel rocket|liquid-fuel]] [[rocket engine]] [[RD-170 (rocket engine)|RD-170]])
* [[Heinrich Göbel]] (1818–1893), Germany – incandescent lamp
* [[Leonid Gobyato]] (1875–1915), Russia – man-portable [[Mortar (weapon)|mortar]]
* [[Robert Goddard (scientist)|Robert Goddard]] (1882–1945), U.S. – liquid fuel rocket
* [[Sam Golden]] (1915–1997), together with [[Leonard Bocour]] (1910–1993), U.S. – [[Acrylic paint]]
* [[Peter Carl Goldmark]] (1906–1977), Hungary – [[vinyl record]] (LP), CBS [[color television]]
* [[Camillo Golgi]] (1843–1926), Italy – [[Golgi's method]] (histology)
* [[György Gömöri]] (1904–1957), Hungary / U.S. – [[Gömöri trichrome stain]], [[Gömöri methenamine silver stain]] (histology)
* [[Lewis Gompertz]] ({{circa|1783}}–1861), UK – expanding chuck, improved [[velocipede]]
* [[Sarah E. Goode]] (1855–1905), US – cabinet bed. First African-American woman to receive a United States patent.
* [[Charles Goodyear]] (1800–1860), U.S. – [[vulcanization|vulcanization of rubber]]
* [[Praveen Kumar Gorakavi]] (born 1989), India – low-cost [[Braille]] Typewriter
* [[Robert W. Gore]] (1937–2020), U.S. – [[Gore-Tex]]
* [[Igor Gorynin]] (1926–2015), Russia – [[weldable]] [[titanium]] alloys, high strength [[aluminium]] alloys, [[Radiation hardening|radiation-hardened]] steels
* [[James Gosling]] (born 1955), U.S. – [[Java (programming language)]]
* [[Gordon Gould]] (1920–2005), U.S. – [[Laser]], see also [[Theodore Maiman]]
* [[Richard Hall Gower]] (1768–1833), UK – [[Transit (ship)|ship's hull and rigging]]
* [[Boris Grabovsky]] (1901–1966), Russia – [[cathode]] commutator, an early electronic TV pickup tube
* [[Bette Nesmith Graham]] (1924–1980), U.S. – [[Correction fluid]], [[Liquid Paper]]
* [[Iréne Grahn]]  (1945–2013), Sweden – finger joint support for patients with [[rheumatoid arthritis]]
* [[Hans Christian Gram]] (1853–1938), Denmark / Germany – [[Gram staining]] (histology)
* [[Zénobe Gramme]] (1826–1901), Belgium/France – [[Gramme dynamo]]
* [[Temple Grandin]] (born 1947), [[squeeze machine]] and humane [[abattoir]]s
* [[Michael Grätzel]] (born 1944), Germany/Switzerland – [[Dye-sensitized solar cell]]
* [[James Henry Greathead]] (1844–1896), South Africa – [[tunnel boring machine]], [[tunnelling shield]] technique
* [[Chester Greenwood]] (1858–1937), U.S. – [[Earmuffs|thermal earmuffs]]
* [[Lori Greiner]] (born 1969), U.S. – Silver Safekeeper anti-tarnish lining (jewelry organizers) and multiple consumer products, 120 US and foreign patents
* [[James Gregory (astronomer and mathematician)|James Gregory]] (1638–1675), Scotland – [[Gregorian telescope]]
* [[William Griggs (inventor)|William Griggs]] (1832–1911), England – a process of [[photolithography]]
* [[Helmut Gröttrup]] (1916–1981), Germany – [[smart card]], systems for [[banknote processing]]
* [[William Robert Grove]] (1811–1896), Wales – [[fuel cell]]
* [[Gustav Guanella]] (1909–1982), Switzerland – [[DSSS]], Guanella-[[Balun]]
* [[Otto von Guericke]] (1602–1686), Germany – [[vacuum pump]], [[manometer]], [[dasymeter]]
* [[Sarah Guppy]] (1770–1852), United Kingdom – bridge/railroad building, tea and coffee urn, barnacle prevention for boats, long lasting candlestick
* [[Mikhail Gurevich (aircraft designer)|Mikhail Gurevich]] (1893–1976), Russia – [[MiG]]-series fighter aircraft, including world's [[List of most produced aircraft|most produced]] [[jet aircraft]] [[Mikoyan-Gurevich MiG-15|MiG-15]] and most produced [[supersonic aircraft]] [[Mikoyan-Gurevich MiG-21|MiG-21]] (together with [[Artem Mikoyan]])
* [[Goldsworthy Gurney]] (1793–1875), England – [[Gurney Stove]]
* [[Bartolomeu de Gusmão]] (1685–1724), Brazil – early air balloons
* [[Johann Gutenberg]] (c. 1398–1468), Germany – movable type [[printing press]]
* [[Samuel Guthrie (physician)]] (1782–1848), U.S. – discovered [[chloroform]]

===H===
* [[Fritz Haber]] (1868–1934), Germany – [[Haber process]] (ammonia synthesis)
* [[John Hadley]] (1682–1744), UK – [[octant (instrument)|octant]]
* [[Waldemar Haffkine]] (1860–1930), Russia/Switzerland – first anti-[[cholera]] and anti-[[bubonic plague|plague]] vaccines
* [[Gunther von Hagens]] (born 1945), Germany – whole body [[Plastination]]
* [[Charles Martin Hall|Charles Hall]] (1863–1914), U.S. – [[aluminum]] production
* [[Robert N. Hall]] (1919–2016), U.S. – [[Laser diode|Semiconductor laser]]
* [[Samuel Hall (inventor)|Samuel Hall]] (1782–1863), UK – [[condenser (heat transfer)|condenser]] to enable recycling of water in a ship's steam engine
* [[Tracy Hall]] (1919–2008), U.S. – [[synthetic diamond]]
* [[Nicholas Halse]] (died 1636), England – malt kiln
* [[Richard Hamming]] (1915–1998), U.S. – [[Hamming code]]
* [[John Hays Hammond Jr.]] (1888–1965), U.S. – [[radio control]]
* [[Ruth Handler]] (1916–2002), U.S. – [[Barbie]] doll
* [[James Hargreaves]] (1720–1778), UK – [[spinning jenny]]
* [[John Harington (writer)|John Harington]] (1561–1612), UK – the [[flush toilet]]
* [[William Snow Harris]] (1791–1867), UK – much improved naval [[Lightning rod]]s
* [[John Harrison]] (1693–1776), UK – [[marine chronometer]]
* [[Ross Granville Harrison]] (1870–1959), U.S. – first successful animal [[Tissue culture]], [[Cell culture]]
* [[Kazuo Hashimoto]] (died 1995), Japan – [[Caller-ID]], [[answering machine]]
* [[Victor Hasselblad]] (1906–1978), Sweden – the 6 x 6&nbsp;cm [[single-lens reflex camera]]
* [[Ibn al-Haytham]] (Alhazen) (965–1039), [[Iraq]] – [[camera obscura]], [[pinhole camera]], [[magnifying glass]]
* [[George H. Heilmeier]] (1936–2014), U.S. – [[liquid crystal display]] (LCD)
* [[Henry Heimlich]] (1920–2016), U.S. – [[Heimlich maneuver#Abdominal thrusts|Heimlich maneuver]]
* [[Robert A. Heinlein]] (1907–1988), U.S. – [[waterbed]]
* [[Jozef Karol Hell]] (1713–1789), [[Slovakia]] – the water pillar
* [[Rudolf Hell]] (1901–2002), Germany – the [[Hellschreiber]]
* [[Hermann von Helmholtz]] (1821–1894), Germany – [[Helmholtz pitch notation]], [[Helmholtz resonator]], [[ophthalmoscope]]
* [[Zhang Heng]] (78–139), China – [[Seismometer]], first hydraulic-powered [[armillary sphere]]
* [[Beulah Louise Henry]] (1887–1973), U.S. – [[bobbin]]-free [[sewing machine]], vacuum [[ice cream freezer]]
* [[Charles H. Henry]] (1937–2016), U.S. – [[Quantum well laser]]
* [[Joseph Henry]] (1797–1878), Scotland/U.S. – electromagnetic [[relay]]
* [[Félix d'Herelle]] (1873–1949), together with [[Giorgi Eliava]] (1892–1937), France, Georgia – [[Phage therapy]]
* [[Hero of Alexandria|Heron]] (c. 10–70), [[Ægyptus|Roman Egypt]] – usually credited with invention of the [[aeolipile]], although it may have been described a century earlier
* [[John Herschel]] (1792–1871), UK – [[photographic fixer]] (hypo), [[actinometer]]
* [[Harry Houdini]] (1874–1926) U.S. – flight time illusion
* [[Heinrich Hertz]] (1857–1894), Germany – [[radio telegraphy]], [[electromagnetic radiation]]
* [[Ephraim Hertzano]] (1912–1987), Roumania / Israel – [[Rummikub]]
* [[Lasse Hessel]] (1940–2019), Denmark – [[female condom]]
* [[George de Hevesy]] (1885–1966), Hungary – [[radioactive tracer]]
* [[Ron Hickman|Ronald Price Hickman]] (1932–2011), U.S. – designed the original [[Lotus Elan#1960s Elan|Lotus Elan]], the [[Lotus Elan#1960s Elan|Lotus Elan +2]] and the [[Lotus Europa]], as well as the [[Black & Decker Workmate]]
* [[Rowland Hill (postal reformer)|Rowland Hill]] (1795–1879), UK – [[postage stamp]]
* [[Maurice Hilleman]] (1919–2005) – [[vaccines]] against childhood diseases
* [[Tanaka Hisashige]] (1799–1881), Japan – [[Myriad year clock]]
* [[Marcian Hoff|Ted Hoff]] (born 1937), U.S. – [[microprocessor]]
* [[Felix Hoffmann]] (Bayer) (1868–1949), Germany – [[aspirin]]
* [[Albert Hofmann]] (1906–2008), Switzerland – [[LSD]]
* [[Kotaro Honda]] (1870–1954), Japan – [[KS steel]]
* [[Huang Hongjia]] (1924–2021), China – [[single-mode optical fiber]]
* [[Herman Hollerith]] (1860–1929), U.S. – recording data on a machine-readable medium, [[tabulating machine|tabulator]], [[punched cards]]
* [[Nick Holonyak]] (1928–2022), U.S. – [[LED]] (Light Emitting Diode)
* [[Norman Holter]] (1914–1983), U.S. – [[Holter monitor]]
* [[Robert Hooke]] (1635–1703), UK – [[balance wheel]], [[iris diaphragm]], [[Tin can telephone|acoustic telephone]]
* [[Erna Schneider Hoover]] (born 1926), U.S. – computerized telephone switching system
* [[Harold Hopkins (physicist)|Harold Hopkins]] (1918–1994), UK – [[zoom lens]], rod lens [[endoscope]]
* [[Grace Hopper|Grace Murray Hopper]] (1906–1992), U.S. – [[compiler]]
* [[Frank Hornby]] (1863–1936), UK – invented [[Meccano]]
* [[Jimmy Hotz]] (1953–2023), U.S. – Hotz MIDI Translator, Atari Hotz Box
* [[Royal Earl House]] (1814–1895), U.S. – first [[Printing telegraph]]
* [[Coenraad Johannes van Houten]] (1801–1887), Netherlands – [[cocoa powder]], [[cacao butter]], [[chocolate milk]]
* [[Elias Howe]] (1819–1867), U.S. – [[sewing machine]]
* [[David Edward Hughes]] (1831–1900), UK – printing telegraph
* [[Kate Duval Hughes]] (born 1837) – window sash security devices
* [[Chuck Hull]] (born 1939), U.S. – [[3D printing|3D printer]]
* [[Troy Hurtubise]] (1963–2018), Canada – [[Trojan Ballistics Suit of Armor]], Ursus suit, Firepaste, Angel Light
* [[Miller Reese Hutchison]] (1876–1944), U.S. – [[Klaxon]], electric [[hearing aid]]
* [[Christiaan Huygens]] (1629–1695), Netherlands – [[pendulum clock]]
* [[John Wesley Hyatt]] (1837–1920), U.S. – [[celluloid]] manufacturing

===I===
* [[Gavriil Abramovich Ilizarov|Gavriil Ilizarov]] (1921–1992), Russia – [[Ilizarov apparatus]], [[external fixation]], [[distraction osteogenesis]]
* [[Mamoru Imura]] (born 1948), Japan – [[RFIQin]] (automatic cooking device)
* [[Daisuke Inoue]] (born 1940), Japan – [[Karaoke machine]]
* [[János Irinyi]] (1817–1895), Hungary – noiseless [[match]]
* [[Ub Iwerks]] (1901–1971), U. S. – [[multiplane camera]] for animation

===J===
* [[Moritz von Jacobi]] (1801–1874), Germany/Russia – [[electrotyping]], [[electric boat]]
* [[Rudolf Jaenisch]] (born 1942), Germany/U.S. – first [[Genetically modified mouse]]
* [[Alcinous Burton Jamison]] (1851–1938), American physician, inventor of medical devices
* [[Jang Yeong-sil]] (c. 1390–after 1442), South Korea (Joseon dynasty) – [[Borugak Jagyeongnu|Jagyeokru]] (Water clock) and [[Cheugugi]] (rain gauge)
* [[Karl Guthe Jansky]] (1905–1950), U.S. – [[radio telescope]]
* [[Karl Jatho]] (1873–1933), Germany – [[aeroplane]]
* [[Ali Javan]] (1926–2016), together with [[William R. Bennett Jr.]] (1930–2008), Iran/U.S. – [[Gas laser]] (Helium-Neon)
* [[Al-Jazari]] (1136–1206), [[Iraq]] – [[elephant clock]], [[humanoid robot]]s
* [[Ibn Al-Jazzar]] (Algizar) (895–979), [[Tunisia]] – [[sexual dysfunction]] and [[erectile dysfunction]] treatment drugs
* [[Ányos Jedlik]] (1800–1898), Hungary – [[Dynamo#Jedlik's dynamo|Jedlik dynamo]]
* [[Alec Jeffreys|Alec John Jeffreys]] (born 1950), UK – [[DNA profiling]] (forensics)
* [[Charles Francis Jenkins]] (1867–1934), U.S. – television and [[movie projector]] (Phantoscope)
* [[Thomas L. Jennings]] (1791–1859), U.S. – novel method of [[dry cleaning]]
* [[Jeong Yak-yong]] (1762–1836), South Korea (Joseon dynasty) – Geojunggi (crane)
* [[Steve Jobs]] (1955–2011), U.S. – Apple [[Macintosh]] computer, [[iPod]], [[iPhone]], [[iPad]] and other devices, software operating systems and applications.
* [[Amos E. Joel Jr.|Amos Edward Joel Jr.]] (1918–2008) U.S. – electrical engineer, known for several contributions and over seventy patents related to telecommunications switching systems
* [[Carl Edvard Johansson]] (1864–1943), Sweden – [[Gauge blocks]]
* [[Johan Petter Johansson]] (1853–1943), Sweden – [[Pipe wrench]] and [[adjustable spanner]]
* [[Reynold B. Johnson]] (1906–1998), U.S. – [[Hard disk drive]]
* [[Philipp von Jolly]] (1809–1884), Germany – [[Jolly balance]]
* [[Scott A. Jones]] (born 1960), U.S. – created one of the most successful versions of [[voicemail]] as well as [[ChaCha Search]], a human-assisted [[internet]] [[Web search engine|search engine]]
* [[Tom Parry Jones]] (1935–2013), UK – first electronic [[Breathalyzer]]
* [[Assen Jordanoff]] (1896–1967), Bulgaria – [[airbag]]
* [[Anatol Josepho]] (1894–1980), patented the first coin-operated [[photo booth]] called the "Photomaton" in 1925
* [[Marjorie Joyner]] (1896–1994), U.S. – [[Permanent wave]] machine
* [[Whitcomb Judson]] (1836–1909), U.S. – [[zipper]]
* [[Percy Lavon Julian]] (1899–1975), U.S. – chemical synthesis of medicinal drugs from plants
* [[Ma Jun (mechanical engineer)|Ma Jun]] (''fl.'' 220–265), China – [[south-pointing chariot]] (see [[differential gear]]), mechanical [[puppet]] [[theater]], [[chain pump]]s, improved [[silk]] [[loom]]s

===K===
* [[Mikhail Kalashnikov]] (1919–2013), Russia – [[AK-47]] and [[AK-74]] assault rifles (the most produced ever)
* [[Bob Kahn]] (born 1938), together with [[Vint Cerf]] (born 1943), U.S. – [[Internet Protocol]] (TCP/IP)
* [[Dawon Kahng]] (1931–1992), South Korea, together with [[Simon Sze]] (1936–2023), Taiwan/U.S. – [[Floating-gate MOSFET]]
* [[Dean Kamen]] (born 1951), U.S. – Invented the [[Segway HT]] scooter and the [[IBOT]] Mobility Device
* [[Heike Kamerlingh Onnes]] (1853–1926), Netherlands – [[helium|liquid helium]]
* [[Nikolay Kamov]] (1902–1973), Russia – armored battle [[autogyro]], [[Kamov|Ka]]-series [[coaxial rotor]] [[helicopter]]s
* [[Pyotr Kapitsa]] (1894–1984), Russia – first ultrastrong [[magnetic field]] creating techniques, basic [[low-temperature physics]] inventions
* [[Georgii Karpechenko]] (1899–1941), Russia – [[rabbage]] (the first ever non-sterile hybrid obtained through the crossbreeding)
* [[Jamshīd al-Kāshī]] (c. 1380–1429), [[History of Iran|Persia]]/[[Iran]] – plate of [[Conjunction (astronomy and astrology)|conjunctions]], analog planetary [[Analog computer|computer]]
* [[Andrew Kay]] (1919–2014), U.S. – [[Voltmeter#Digital voltmeter|Digital voltmeter]]
* [[Adolphe Kégresse]] (1879–1943), France/Russia – [[Kégresse track]] (first [[half-track]] and first [[off-road vehicle]] with [[continuous track]]), [[dual-clutch transmission]]
* [[Carl D. Keith]] (1920–2008), together with [[John J. Mooney]] (1930–2020), U.S. – three way [[Catalytic converter#Types|catalytic converter]]
* [[Mstislav Keldysh]] (1911–1978), [[Latvia]]/Russia – co-developer of [[Sputnik 1]] (the first artificial satellite) together with [[Sergey Korolyov|Korolyov]] and [[Mikhail Tikhonravov|Tikhonravov]]
* [[John Harvey Kellogg]] (1852–1943), [[corn flakes|cornflake breakfasts]]
* [[John G. Kemeny]] (1926–1992), together with [[Thomas E. Kurtz]] (1928–2024), Hungary/U.S. – [[BASIC]] (programming language)
* [[Alexander Kemurdzhian]] (1921–2003), [[Armenia]]/Russia/USSR – first space exploration [[Rover (space exploration)|rover]] ([[Lunokhod programme|Lunokhod]])
* [[Mary Kenner]] (1912–2006), U.S. – [[sanitary napkin|sanitary belt]]
* [[William Saville-Kent]] (1845–1908), UK/Australia – [[Cultured pearl|Pearl culture]], see also [[Mikimoto Kōkichi]]
* [[Kerim Kerimov]] (1917–2003), [[Azerbaijan]] and Russia – co-developer of [[human spaceflight]], [[space dock]], [[space station]]
* [[Jacques de Kervor]] (1928–2010), France – industrial designer
* [[Charles F. Kettering]] (1876–1958), U.S. – invented automobile self-starter ignition, [[Freon]] [[Tetra ethyl lead|ethyl gasoline]] and more
* [[Fazlur Khan]] (1929–1982), [[Bangladesh]] – structural systems for high-rise [[skyscraper]]s
* [[Yulii Khariton]] (1904–1996), Russia – chief designer of the [[Soviet atomic bomb]], co-developer of the [[Tsar Bomba]]
* [[Anatoly Kharlampiyev]] (1906–1979), Russia – [[Sambo (martial art)]]
* [[Al-Khazini]] (''fl.''1115–1130), [[History of Iran|Persia]]/[[Iran]] – [[hydrostatic balance]]
* [[Konstantin Khrenov]] (1894–1984), Russia – [[underwater welding]]
* [[Abu-Mahmud Khojandi]] (c. 940–1000), [[History of Iran|Persia]]/[[Iran]] – [[sextant (astronomical)|astronomical sextant]]
* [[Muhammad ibn Musa al-Khwarizmi]] (Algoritmi) (c. 780–850), [[History of Iran|Persia]]/[[Iran]] – [[algebra]], [[mural instrument]], horary quadrant, [[Sine quadrant]], shadow square
* [[Johann Kiefuss]] – inventor in [[Nuremberg]] in 1517
* [[Marcel Kiepach]] (1894–1915), Croatia – [[dynamo]], maritime compass that indicates north regardless of the presence of iron or magnetic forces
* [[Mary Dixon Kies]] (1752–1837), U.S. – new technique of weaving straw with silk and thread to make hats
* [[Erhard Kietz]] (1909–1982), Germany & U.S. – signal improvements for video transmissions<ref>{{cite web |url=http://www.freepatentsonline.com/result.html?query_txt=Erhard+Kietz&sort=relevance&srch=top&search= |title=FPO IP Research & Communities |publisher=Freepatentsonline.com |access-date=2012-10-22 |archive-date=2015-12-13 |archive-url=https://web.archive.org/web/20151213163341/http://www.freepatentsonline.com/result.html?query_txt=Erhard+Kietz&sort=relevance&srch=top&search= |url-status=live }}</ref>
* [[Jack Kilby]] (1923–2005), U.S. – patented the first [[integrated circuit]]
* [[Al-Kindi]] (Alkindus) (801–873), [[Iraq]]/[[Yemen]] – unambiguously described the distillation of wine in the 9th century, [[cryptanalysis]], [[frequency analysis]]
* [[Petrus Jacobus Kipp]] (1808–1864), The Netherlands – [[Kipp's apparatus]] (chemistry)
* [[Semyon Kirlian]] (1898–1978), Armenia/USSR – [[Kirlian photography]]
* [[Steve Kirsch]] (born 1956), U.S. – [[Optical mouse]]
* [[Fritz Klatte]] (1880–1934), Germany – vinyl chloride, forerunner to [[polyvinyl chloride]]
* [[Yves Klein]] (1928–1962), France – [[International Klein Blue]]
* [[Margaret E. Knight]] (1838–1914), U.S. – machine that completely constructs box-bottom brown paper bags
* [[Tom Knight (scientist)|Tom Knight]] (?), U.S. – [[BioBrick]]s (synthetic biology)
* [[Ivan Knunyants]] (1906–1990), [[Armenia]]/Russia/USSR – Soviet [[chemical weapon]]s, capron, [[Nylon 6]], polyamide-6
* [[Robert Koch]] (1843–1910), Germany – method for culturing bacteria on solid media
* [[Willem Johan Kolff]] (1911–2009), Netherlands – artificial kidney [[hemodialysis]] machine
* [[Rudolf Kompfner]] (1909–1977), U.S. – [[Traveling-wave tube]]
* [[Konstantin Konstantinov]] (1817/1819–1871), Russia – device for measuring flight speed of [[projectile]]s, [[Ballistic missile|ballistic]] rocket [[pendulum]], [[launch pad]], rocket-making machine
* [[Sergei Korolev]] (1907–1966), [[USSR]] – first successful [[intercontinental ballistic missile]] ([[R-7 Semyorka]]), [[R-7 (rocket family)|R-7 rocket family]], [[Sputnik]]s (including the [[Sputnik 1|first Earth-orbiting artificial satellite]]), [[Vostok program]] (including the [[Vostok 1|first human spaceflight]])
* [[Nikolai Korotkov]] (1874–1920), [[Russian Empire]] – auscultatory technique for [[blood pressure]] measurement
* [[Semyon Korsakov]] (1787–1853), [[Russian Empire]] – [[punched card]] for information storage
* [[Mikhail Koshkin]] (1898–1940), Russia – [[T-34]] medium tank, the best and most produced tank of World War II<ref>{{cite web |first=George |last=Parada (n.d.) |url=http://www.achtungpanzer.com/t34.htm |title=Panzerkampfwagen T-34(r) |publisher=Achtungpanzer.com |access-date=November 17, 2008 |archive-date=June 10, 2008 |archive-url=https://web.archive.org/web/20080610073152/http://www.achtungpanzer.com/t34.htm |url-status=live }}</ref>
* [[Ognjeslav Kostović Stepanović|Ognjeslav Kostović]] (1851–1916), [[Serbia]]/Russia – arborite (high-strength [[plywood]], an early plastic)
* [[Gleb Kotelnikov]] (1872–1944), Russia – [[knapsack parachute]], [[drogue parachute]]
* [[William Justin Kroll]] (1889–1973), Luxemburg/U.S. – [[Kroll process]]
* [[Alfred Krupa]] (1915–1989), [[Yugoslavia]] – the modern wheeled suitcase, a glass-bottom boat, the skis for use in walking on water, a folding canvas catamaran
* [[Aleksey Krylov]] (1863–1945), Russia – [[gyroscope|gyroscopic]] [[Damping ratio|damping]] of ships
* [[Ivan Kulibin]] (1735–1818), Russia – egg-shaped clock, [[candle]] [[searchlight]], [[elevator]] using screw mechanisms, a ''[[self-rolling carriage]]'' featuring a [[flywheel]], [[brake]], [[gear box]], and [[bearing (mechanical)|bearing]], an early [[optical telegraph]]
* [[Shen Kuo]] (1031–1095), China – improved [[gnomon]], [[armillary sphere]], [[Water clock|clepsydra]], and sighting tube
* [[Igor Kurchatov]] (1903–1960), Russia – [[Soviet atomic bomb]], first [[nuclear power plant]], first [[nuclear reactor]]s for [[submarine]]s and [[Nuclear marine propulsion|surface ships]]
* [[Thomas E. Kurtz]] (1928-2024), together with [[John G. Kemeny]] (1926–1992), U.S./Hungary – [[BASIC]] (programming language)
* [[Raymond Kurzweil]] (born 1948), [[Optical character recognition]]; [[flatbed scanner]]
* [[Ken Kutaragi]] (born 1950), Japan – [[PlayStation]]
* [[Stephanie Kwolek]] (1923–2014), U.S. – [[Kevlar]]
* [[John Howard Kyan]] (1774–1850), Ireland – process of Kyanization used for [[wood preservation]]

===L===
* [[Dmitry Lachinov]] (1842–1902), Russia – [[mercury (element)|mercury]] [[pump]], [[economizer]] for electricity consumption, [[Insulator (electrical)|electrical insulation]] tester, [[optical]] [[dynamometer]], [[photometer]], [[Electrolysis|electrolyser]]
* [[René Laennec]] (1781–1826), France – [[stethoscope]]
* [[Georges Lakhovsky]] (1869–1942), Russia/U.S. – multiple wave oscillator
* [[Simon S. Lam]] (born 1947) U.S. – [[Secure Network Programming|Secure Sockets]] invented in 1991 for securing Internet applications (World Wide Web, email, etc.)
* [[Hedy Lamarr]] (1914–2000), Austria and U.S. – [[Spread spectrum]] radio
* [[Edwin H. Land]] (1909–1991), U.S. – [[Polaroid Corporation|Polaroid]] polarizing filters and the [[Land Camera]]
* [[Samuel P. Langley]] (1834–1906), U.S. – [[bolometer]]
* [[Alexander Nikolayevich Lodygin]] (1847–1923), [[Russia]] – [[incandescent lamp]]
* [[Irving Langmuir]] (1851–1957), U.S. – gas filled [[incandescent light bulb]], hydrogen welding
* [[Norm Larsen]] (1923–1970), U.S. – [[WD-40]]
* [[Lewis Latimer]] (1848–1928), U.S. – improved carbon-filament light bulb
* [[Gustav de Laval]] (1845–1913), Sweden – invented the milk separator and the milking machine
* [[Semyon Lavochkin]] (1900–1960), Russia – [[Lavochkin|La]]-series aircraft, first operational [[surface-to-air missile]] [[S-25 Berkut]]
* [[John Bennet Lawes]] (1814–1900), UK – [[superphosphate]] or [[chemical fertilizer]]
* [[Ernest Lawrence|Ernest Orlando Lawrence]] (1901–1958), U.S. – [[Cyclotron]]
* [[Nikolai Lebedenko]], Russia – [[Tsar Tank]], largest [[armored vehicle]] in history
* [[Sergei Vasiljevich Lebedev|Sergei Lebedev]] (1874–1934), Russia – commercially viable [[synthetic rubber]]
* [[William Lee (inventor)|William Lee]] (1563–1614), UK – [[Stocking frame]] [[knitting machine]]
* [[Edward Leedskalnin]] (1887–1951), U.S. – construction techniques used to single-handedly lift massive coral blocks in the creation of his [[Coral Castle]]
* [[Antoni van Leeuwenhoek]] (1632–1723), The Netherlands – development of the [[microscope]]
* [[Jerome H. Lemelson]] (1923–1997), U.S. – inventions in the fields in which he patented make possible, wholly or in part, innovations like automated warehouses, [[industrial robots]], [[cordless telephones]], [[fax machines]], videocassette recorders, [[camcorders]], and the [[magnetic tape drive]] used in Sony's Walkman tape players.
* [[Etienne Lenoir|Jean-Joseph Etienne Lenoir]] (1822–1900), Belgium – [[internal combustion engine]], [[motorboat]]
* [[Giacomo da Lentini]] (13th century), Italy – [[Sonnet]]
* [[R. G. LeTourneau]] (1888–1969), U.S. – electric wheel, motor scraper, mobile oil drilling platform, bulldozer, cable control unit for scrapers
* [[Rasmus Lerdorf]] (born 1968), Greenland/Canada – [[PHP]] (programming language)
* [[Willard Frank Libby]] (1908–1980), U.S. – [[radiocarbon dating]]
* [[Justus von Liebig]] (1803–1873), Germany – [[nitrogen]]-based [[fertilizer]]
* [[Edward Light]] (1747–1832), UK – [[harp lute]]
* [[Hon Lik]] (born 1951), China – [[electronic cigarette]]
* [[Otto Lilienthal]] (1848–1896), Germany – [[hang gliding|hang glider]]
* [[Lin Yutang]] (1895–1976), China/U.S. – [[Chinese typewriter|Chinese language typewriter]]
* [[Charles Lindbergh]] (1902–1974), U.S. – organ [[perfusion]] pump
* [[Frans Wilhelm Lindqvist]] (1862–1931), Sweden – Kerosene stove operated by compressed air
* [[Carl Linnaeus]] (1707–1778), Sweden – formal [[Binomial nomenclature]] for living organisms, [[Linnaeus' flower clock|Horologium Florae]]
* [[Hans Lippershey]] (1570–1619), The Netherlands – associated with the appearance of the [[telescope]]
* [[Gabriel Lippmann|Jonas Ferdinand Gabriel Lippmann]] (1845–1921), France – [[Lippmann plate]], [[Integral imaging]], [[Lippmann electrometer]]
* [[Lisitsyns|Lisitsyn]] brothers, Ivan Fyodorovich and Nazar Fyodorovich, Russia – [[samovar]] (the first documented makers)
* [[William Howard Livens]] (1889–1964), UK – chemical warfare – [[Livens Projector]]
* [[Eduard Locher]] (1840–1910), Switzerland – [[Rack railway#Locher|Locher rack railway system]]
* [[Fredrik Ljungström]] (1875–1964) and [[Birger Ljungström]] (1872–1948), Sweden – [[Ljungström turbine]], [[Ljungström air preheater]], [[Ljungström method]]
* [[Alexander Lodygin]] (1847–1923), Russia – [[electrical filament]], [[incandescent light bulb]] with tungsten filament
* [[Louis Lombard-Gérin]] (1848–1918), France – [[trolleybus]]
* [[Mikhail Lomonosov]] (1711–1765), Russia – [[night vision telescope]], [[off-axis reflecting telescope]], [[coaxial rotor]], re-invented [[smalt]]
* [[Yury Lomonosov]] (1876–1952), Russia/UK – first successful mainline [[diesel locomotive]]
* [[Aleksandr Loran]] (1849 – after 1911), Russia – [[fire fighting foam]], [[Fire extinguisher#Foams|foam extinguisher]]
* [[Oleg Losev]] (1903–1942), Russia – [[light-emitting diode]], [[crystadine]]
* [[Antoine Louis]] (1723–1792), France – [[Guillotine]]
* [[Archibald Low]] (1882–1956), UK – pioneer of radio guidance systems
* [[Ed Lowe (businessman)|Ed Lowe]] (1920–1995), U.S. – [[Cat litter]]
* [[Gleb Lozino-Lozinskiy]] (1909–2001), Russia – [[Buran (spacecraft)]], [[Mikoyan-Gurevich MiG-105|Spiral project]]
* [[Ignacy Łukasiewicz]] (1822–1882), Poland/Armenia – [[Kerosene lamp]], [[Oil refinery]]
* [[Auguste and Louis Lumière]] (1862–1954 and 1864–1948), France – [[Cinématographe]]
* [[Cai Lun]], 蔡倫 (50–121), China – [[paper]]
* [[Giovanni Luppis]] or Ivan Vukić (1813–1875), [[Austrian Empire]] (ethnical Croatian, from Rijeka) – self-propelled [[torpedo]]
* [[Gustave Lyon]] (1857–1936), France – [[Cross-strung harp|chromatic harp]]
* [[Richard F. Lyon]] (born 1952), U.S. – [[Optical mouse]]
* [[Arkhip Mikhailovich Lyulka|Arkhip Lyulka]] (1908–1984), Russia – first double jet [[turbofan]] engine, [[Lyulka|other]] Soviet [[aircraft engine]]s

===M===
* [[Charles Macintosh]] (1766–1843), Scotland – [[waterproof]] [[raincoat]], [[life vest]]
* [[Theodore Maiman]] (1927–2007), U.S. – [[Laser]], see also [[Gordon Gould]]
* [[Ahmed Majan]] (born 1963), UAE – instrumented racehorse saddle and others
* [[Alexander Alexeyevich Makarov|Aleksandr Makarov]] (born 1966), Russia/Germany – [[Orbitrap]] [[mass spectrometer]]
* [[Stepan Makarov]] (1849–1904), Russia – [[Icebreaker Yermak]], first true [[icebreaker]] able to ride over and crush [[pack ice]]
* [[Victor Makeev]] (1924–1985), Russia – first [[submarine-launched ballistic missile]]
* [[Nestor Makhno]] (1888–1934), [[Ukraine]]/Russia – [[tachanka]]
* [[Dmitri Dmitrievich Maksutov]] (1896–1964), Russia – [[Maksutov telescope]]
* [[Annie Malone]] (1869–1957), U.S. – [[Annie Malone|Cosmetics for African American women]]
* [[Sergey Malyutin]] (1859–1937), Russia – designed the first [[matryoshka doll]] (together with [[Vasily Zvyozdochkin]])
* [[Boris Aleksandrovich Mamyrin|Boris Mamyrin]] (1919–2007), Russia – [[reflectron]] ([[ion]] mirror)
* [[George William Manby]] (1765–1854), UK – [[Fire extinguisher]]
* [[Harry Mendell]], U.S. – invented the first [[Sampler (musical instrument)|digital sampling]] [[synthesizer]]
* [[Joy Mangano]] (born 1956), U.S. – household appliances
* [[Anna Mangin]] (1844–1931) – American inventor, educator, caterer and women's rights campaigner
* [[Charles Mantoux]] (1877–1947), France – [[Mantoux test]] (tuberculosis)
* [[Guglielmo Marconi]] (1874–1937), Italy – radio [[telegraphy]]
* [[Gheorghe Marinescu]] (1863–1938), Romania – first science films in the world in the neurology clinic in Bucharest (1898–1901)
* [[Sylvester Marsh]] (1803–1884), U.S. – [[Rack railway#Marsh|Marsh rack railway system]]
* [[Konosuke Matsushita]] (1894–1989), Japan – battery-powered [[Bicycle lighting]]
* [[Taqi al-Din Muhammad ibn Ma'ruf]] (1526–1585), [[Syria]]/[[Egypt]]/Turkey – [[steam turbine]], six-[[Cylinder (engine)|cylinder]] 'Monobloc' [[suction]] [[pump]], [[Sextant (astronomical)|framed sextant]]
* [[Alex Mashinsky]] (born 1965), U.S. – [[VoIP]]
* [[John Landis Mason]] (1826–1902), U.S. – [[Antique fruit jar|Mason jars]]
* [[Fujio Masuoka]] (born 1943), Japan – [[Flash memory]]
* [[John W. Mauchly]] (1907–1980), U.S. – [[ENIAC|ENIAC – the first general purpose programmable digital computer]]
* [[Henry Maudslay]] (1771–1831), UK – screw-cutting [[lathe]], bench [[Micrometer (device)|micrometer]]
* [[Hiram Maxim]] (1840–1916), U.S. born, UK – first self-powered machine gun
* [[James Clerk Maxwell]] (1831–1879) and [[Thomas Sutton (photographer)|Thomas Sutton]], Scotland – [[color photography]]
* [[Stanley Mazor]] (born 1941), U.S. – [[microprocessor]]
* [[John Loudon McAdam]] (1756–1836), Scotland – improved "macadam" road surface
* [[Elijah McCoy]] (1843–1929), Canada – [[Displacement lubricator]]
* [[Nicholas McKay (inventor)|Nicholas McKay Sr.]] (1920–2014), U.S. – [[Lint roller]]
* [[Frederick McKinley Jones]] (1893–1961), U.S. – 22 patents, the most prominent for an automatic refrigeration system for long-haul trucks
* [[James McLurkin]] (born 1972), U.S. – [[Ant robotics]] (robotics)
* [[Ilya Ilyich Mechnikov]] (1845–1916), Russia – [[probiotics]]
* [[Hippolyte Mège-Mouriès]] (1817–1880), France – [[margarine]]
* [[Mordecai Meirowitz]] (born 1930), Roumania / Israel – [[Mastermind (board game)]]
* [[Dmitri Mendeleev]] (1834–1907), Russia – [[Periodic table]], [[pycnometer]], [[pyrocollodion]]
* [[Richard B. Merrill]] (1949–2008), U.S. – [[Foveon X3 sensor]]
* [[George de Mestral]] (1907–1990), Switzerland – [[Velcro]]
* [[Robert Metcalfe]] (born 1946), U.S. – [[Ethernet]]
* [[Antonio Meucci]] (1808–1889), Italy/U.S. – various early [[telephone]]s, a [[hygrometer]], a [[Antonio Meucci|milk test]]
* [[Édouard Michelin (born 1859)|Édouard Michelin]] (1859–1940), France – [[pneumatic tire]]
* [[Anthony Michell]] (1870–1959), Australia – tilting pad thrust bearing, crankless engine
* [[Artem Mikoyan]] (1905–1970), [[Armenia]]/Russia/USSR – [[MiG]]-series fighter aircraft, including world's [[List of most produced aircraft|most produced]] [[jet aircraft]] [[Mikoyan-Gurevich MiG-15|MiG-15]] and most produced [[supersonic aircraft]] [[Mikoyan-Gurevich MiG-21|MiG-21]] (together with [[Mikhail Gurevich (aircraft designer)|Mikhail Gurevich]])
* [[Alexander Mikulin]] (1895–1985), Russia – [[Mikulin AM-34]] and other Soviet [[aircraft engine]]s, co-developer of the [[Tsar Tank]]
* [[Mikhail Mil]] (1909–1970), Russia – [[Mil Moscow Helicopter Plant|Mi]]-series [[helicopter]] aircraft, including [[Mil Mi-8]] (the world's [[List of most produced aircraft|most-produced helicopter]]) and [[Mil Mi-12]] (the world's largest helicopter)
* [[Alexander Miles]] (1838–1918), U.S. – system for automatically opening and closing [[elevator]] doors
* [[David L. Mills]] (1938–2024), U.S. – [[Fuzzball router]], [[Network Time Protocol]]
* [[Marvin Minsky]] (1927–2016), U.S. – [[Confocal microscopy]]
* [[Tokushichi Mishima]] (1893–1975), Japan – [[MKM steel|MKM magnetic steel]]
* [[Pavel Molchanov]] (1893–1941), Russia – [[Radiosonde]]
* [[Jules Montenier]] (1895–1962), U.S. – Anti-perspirant [[deodorant]]
* [[Montgolfier]] brothers (1740–1810) and (1745–1799), France – [[hot air balloon]]
* [[John J. Montgomery]] (1858–1911), U.S. – heavier-than-air gliders
* [[Narcis Monturiol i Estarriol]] (1819–1885), Spain – steam powered [[submarine]]
* [[Robert Moog]] (1934–2005), U.S. – [[Moog synthesizer]]
* [[John J. Mooney]] (1930–2020), together with [[Carl D. Keith]] (1920–2008), U.S. – three way [[Catalytic converter#Types|catalytic converter]]
* [[Roland Moreno]] (1945–2012), France – inventor of the [[smart card]]
* [[Samuel Morey]] (1762–1843), U.S. – internal combustion engine
* [[Garrett A. Morgan]] (1877–1963), U.S. – inventor of the [[smoke hood]]
* [[Alexander Alexandrovich Morozov|Alexander Morozov]] (1904–1979), Russia – [[T-54/55]] (the most produced tank in history), co-developer of [[T-34]]
* [[Walter Frederick Morrison]] (1920–2010), U.S. – [[Flying disc]]
* [[William Morrison (dentist)]] (1860–1926), U.S. – [[Cotton candy]] machine
* [[Samuel F. B. Morse|Samuel Morse]] (1791–1872), U.S. – early [[Morse code]], see also [[Alfred Vail#Controversy over Morse Code|Morse Code controversy]]
* [[Sergei Ivanovich Mosin]] (1849–1902), Russia – [[Mosin–Nagant]] rifle
* [[Motorins]], Ivan Feodorovich (1660s–1735) and his son Mikhail Ivanovich (?–1750), Russia – [[Tsar Bell]]
* [[Vera Mukhina]] (1889–1953), Russia – [[welded sculpture]]
* [[Kary Mullis]] (1944–2019), U.S. – [[Polymerase chain reaction|PCR]]
* [[Fe del Mundo]] (1911–2011), Philippines – [[Neonatal intensive care unit|medical incubator]] made out of bamboo for use in rural communities without electrical power
* [[Colin Murdoch]] (1929–2008), New Zealand – [[Tranquillizer gun]], disposable hypodermic [[syringe]]
* [[William Murdoch]] (1754–1839), Scotland – [[Gas lighting]]
* [[Jozef Murgas]] (1864–1929), [[Slovakia]] – inventor of the [[wireless telegraph]] (forerunner of the radio)
* [[Evgeny Murzin]] (1914–1970), Russia – [[ANS synthesizer]]
* [[Banū Mūsā]] brothers, Muhammad (c. 800–873), Ahmad (803–873), Al-Hasan (810–873), [[Iraq]] – [[Mechanical puzzle|mechanical trick devices]], [[hurricane lamp]], self-trimming and self-feeding [[Oil lamp|lamp]], [[gas mask]], [[Dredging#Grab|clamshell grab]], [[fail-safe]] system, mechanical [[musical instrument]], automatic [[flute]] player
* [[Pieter van Musschenbroek]] (1692–1761), Netherlands – [[Leyden jar]], [[pyrometer]]
* [[Walton Musser]] (1909–1998), U.S. – [[Harmonic drive]] gear
* [[Eadweard Muybridge]] (1830–1904), UK – [[motion picture]]
* [[Ted Myerson]] (born 1975), U.S. – data cloud computing system patents

===N===
* [[Georgi Nadjakov]] (1896–1981), Bulgaria – [[:wikt:photoelectret]]
* [[Alexander Nadiradze]] (1914–1987), Georgia/Russia – first mobile [[ICBM]] ([[RT-21 Temp 2S]]), first reliable mobile ICBM ([[RT-2PM Topol]])
* [[Nagai Nagayoshi]] (1844–1929), Japan – [[Methamphetamine]]
* [[James Naismith]] (1861–1939), Canadian born, U.S. – invented [[basketball]] and [[American football]] helmet
* [[Yoshiro Nakamatsu]] (born 1928), Japan – "PyonPyon" spring [[shoe]]s, [[digital watch]], [[CinemaScope]], [[chair|armchair]] "Cerebrex", sauce [[pump]], [[Taximeter|taxicab meter]]
* [[Shuji Nakamura]] (born 1954), Japan – [[Blue laser]]
* [[John Napier]] (1550–1617), Scotland – [[logarithms]]
* [[Andrey Nartov]] (1683–1756), Russia – first [[lathe]] with a mechanic [[Tool bit|cutting tool]]-supporting [[Lathe carriage|carriage]] and a set of [[gear]]s, fast-fire [[artillery battery|battery]] on a rotating disc, [[Screw (simple machine)|screw]] mechanism for changing the [[artillery]] fire angle, [[Gauge (bore diameter)|gauge]]–[[boring (manufacturing)|boring]] lathe for [[cannon]]-making, early [[telescopic sight]]
* [[James Nasmyth]] (1808–1890), Scotland – [[steam hammer]]
* [[Giulio Natta]] (1903–1979), together with [[Karl Ziegler]] (1898–1973), Italy/Germany – [[Ziegler–Natta catalyst]]
* [[William Neade]] (fl.1624–1637), England – weapon combining a longbow and a pike
* [[Erwin Neher]] (born 1944), together with [[Bert Sakmann]] (1942–), Germany – [[Patch clamp]] technique
* [[Ted Nelson]] (born 1937), U.S. – [[Hypertext]], [[Hypermedia]]
* [[Sergey Nepobedimiy]] (1921–2014), Russia – first supersonic [[anti-tank guided missile]] ''Sturm'', other Soviet [[rocket weapon]]ry
* [[Karl Nessler]] (1872–1951), Germany/U.S. – [[Permanent wave]] machine, [[Karl Nessler|artificial eyebrows]]
* [[Bernard de Neumann]] (1943–2018), UK – massively parallel self-configuring multi-processor
* [[John von Neumann]] (1903–1957), Hungary – Von Neumann [[Von Neumann architecture|computer architecture]], [[Stochastic computing]], [[Merge sort]] algorithm
* [[Isaac Newton]] (1642–1727), UK – reflecting telescope (which reduces [[chromatic aberration]])
* [[Miguel Nicolelis]] (born 1961), Brazil – Brain-machine interfaces
* [[Nicéphore Niépce|Joseph Nicephore Niépce]] (1765–1833), France – [[photography]]
* [[Nikolai Nikitin]] (1907–1973), Russia – [[prestressed concrete]] with [[wire rope]]s structure ([[Ostankino Tower]]), Nikitin-Travush 4000 project (precursor to [[X-Seed 4000]])
* [[Paul Gottlieb Nipkow]] (1860–1940), Germany – [[Nipkow disk]]
* [[Jun-ichi Nishizawa]] (1926–2018), Japan – [[Optical communication]] system, [[SIT/SITh (Static Induction Transistor/Thyristor)]], [[Laser diode]], [[PIN diode]]
* [[Alfred Nobel]] (1833–1896), Sweden – [[dynamite]]
* [[Ludvig Nobel]] (1831–1888), Sweden/Russia – first successful [[oil tanker]]
* [[Emmy Noether]] (1882–1935), Germany, groundbreaking contributions to abstract algebra and theoretical physics; [[Noether's Theorem]]
* [[Jean-Antoine Nollet]] (1700–1770), France – [[Electroscope]]
* [[Wilhelm Normann]] (1870–1939), Germany – [[Hydrogenation|Hydrogenation of fats]]
* [[Carl Richard Nyberg]] (1858–1939), Sweden – the [[blowtorch]]

===O===
* [[Aaron D. O'Connell]] (born 1981), U.S. – first [[Quantum machine]]
* [[Joseph John O'Connell]] (1861–1959), U.S. – number of inventions relating to telephony and electrical engineering
* [[Wilgott Theophil Odhner|Theophil Wilgodt Odhner]] (1845–1903), Sweden/Russia – the [[Odhner Arithmometer]], a [[Calculator#The 19th century|mechanical calculator]]
* [[Paul Offit]] (born 1951), U.S., along with Fred Clark and [[Stanley Plotkin]], invented a pentavalent [[Rotavirus vaccine]]
* [[Hans von Ohain]] (1911–1998), Germany – co-inventor of the [[jet engine]]
* [[Jarkko Oikarinen]] (born 1967), Finland – [[Internet Relay Chat|Internet Relay Chat (IRC)]]
* [[Katsuhiko Okamoto]] (?–), Japan – [[Katsuhiko Okamoto|Okamoto Cubes]] = modifications of [[Rubik's Cube]]
* [[Ransom Eli Olds]] (1864–1950), U.S. – [[Assembly line]]
* [[Lucien Olivier]] (1838–1883), Belgium or France / Russia – [[Russian salad]] (Olivier salad)
* [[Gerard K. O'Neill]] (1927–1992), U.S. – [[Storage ring]] (physics)
* [[J. Robert Oppenheimer]] (1904–1967), United States – [[Atomic bomb]]
* [[Hugh Orr (inventor)|Hugh Orr]] (1715–1798), U.S. – machine for cleaning flax seed
* [[Hans Christian Ørsted]] (1777–1851), Denmark – [[electromagnetism]], [[aluminium]]
* [[Elisha Otis]] (1811–1861), U.S. – safety system for [[elevator]]s
* [[William Oughtred]] (1575–1660), UK – [[slide rule]]

===P===
* [[Arogyaswami Paulraj]] (born 1944), India/U.S. – [[MIMO]]
* [[Antonio Pacinotti]] (1841–1912), Italy – [[Dynamo#Pacinotti dynamo|Pacinotti dynamo]]
* [[Hilary Page]] (1904–1957), UK – Self-Locking Building Bricks, the predecessor of [[Lego]]
* [[Larry Page]] (born 1973), U.S. – with [[Sergey Brin]] invented [[Google Search|Google web search engine]]
* [[William Painter (inventor)|William Painter]] (1838–1906), UK/U.S. – [[Crown cork]], [[William Painter (inventor)|Bottle opener]]
* [[Salvatore Pais]] (born 1967), Romania/U.S. – [[electromagnetic field]] generator to deflect asteroids away from the Earth, an [[inertial mass]] reduction device, a [[room-temperature superconductor]], a [[gravitational wave]] generator, and a [[compact fusion reactor]]
* [[Alexey Pajitnov]] (born 1956), Russia/U.S. – [[Tetris]]
* [[Julio Palmaz]] (born 1945), Argentina – balloon-expandable, [[stent]]
* [[Helge Palmcrantz]] (1842–1880), Sweden – multi-barrel, lever-actuated, [[machine gun]]
* [[Daniel David Palmer]] (1845–1913), Canada – [[chiropractic]]
* [[Luigi Palmieri]] (1807–1896), Italy – [[seismometer]]
* [[Frank Pantridge]] (1916–2004), Ireland – [[Defibrillation#Portable units become available|Portable defibrillator]]
* [[Georgios Papanikolaou]] (1883–1962), Greece / U.S. – [[Papanicolaou stain]], [[Pap test]] = [[Pap smear]]
* [[Alice H. Parker]] (1895–1920), U.S. – central heating using natural gas [[Furnace (house heating)|furnace]]
* [[Philip M. Parker]] (born 1960), U.S. – computer automated book authoring
* [[Thomas Parker (inventor)|Thomas Parker]] (1843–1915), England – electric car
* [[Alexander Parkes]] (1831–1890), UK – [[celluloid]]
* [[Florence Parpart]] ({{c.}} 1856–?), U.S. – industrial sweeping machine, electrical refrigerator
* [[Forrest Parry]] (1921–2005), U.S. – [[Magnetic stripe card]]
* [[Charles Algernon Parsons]] (1854–1931), British – [[steam turbine]]
* [[Spede Pasanen]] (1930–2001), Finland – ski jumping sling, [[boat ski]]
* [[Blaise Pascal]] (1623–1662), France – [[Pascal's calculator]]
* [[Gustaf Erik Pasch]] (1788–1862), Sweden – safety [[match]]
* [[Dimitar Paskov]] (1914–1986), Bulgaria – [[Galantamine]]
* [[C. Kumar N. Patel]] (born 1938), India/U.S. – [[Carbon dioxide laser]]
* [[Les Paul]] (1915–2009), U.S. – [[multitrack recording]]
* [[Andreas Pavel]] (born 1945), Brazil – audio devices
* [[Ivan Pavlov]] (1849–1936), Russia, – [[classical conditioning]]
* [[Floyd Paxton]] (1918–1975), U.S. – [[Bread clip]]
* [[John Pemberton]] (1831–1888), U.S. – [[Coca-Cola]]
* [[Slavoljub Eduard Penkala]] (1871–1922), [[Croatia]] – [[mechanical pencil]]
* [[Ralph Peo]] (1897–1966), U.S. – early [[Automobile air conditioning]], [[shock absorber]]s
* [[William Henry Perkin]] (1838–1907), UK – first synthetic organic chemical dye [[Mauveine]]
* [[Henry Perky]] (1843–1906), U.S. – [[shredded wheat]]
* [[Alfred Perot]] (1863–1925), together with [[Charles Fabry]] (1867–1945), France – [[Fabry–Pérot interferometer]] (physics)
* [[Stephen Perry (inventor)|Stephen Perry]], UK (''fl.'' 19th century) – [[rubber band]]
* [[Aurel Persu]] (1890–1977), Romania – first aerodynamic car, aluminum body with wheels included under the body, 1922
* [[Vladimir Petlyakov]] (1891–1942), Russia – [[heavy bomber]]
* [[Julius Richard Petri]] (1852–1921), Germany – [[Petri dish]]
* [[Peter Petroff]] (1919–2004), [[Bulgaria]] – digital wrist watch, heart monitor, weather instruments
* [[Fritz Pfleumer]] (1881–1945), Germany – [[magnetic tape]]
* [[Auguste Piccard]] (1884–1962), Switzerland – [[Bathyscaphe]]
* [[Gregory Goodwin Pincus]] (1903–1967), together with [[Min Chueh Chang]] (1908–1991), U.S./China – [[Combined oral contraceptive pill]]
* [[Nikolay Ivanovich Pirogov]] (1810–1881), Russia – early use of [[diethyl ether|ether]] as [[anaesthetic]], first [[anaesthesia]] in a field operation, various kinds of surgical operations
* [[Fyodor Pirotsky]] (1845–1898), Russia – [[electric tram]]
* [[Arthur Pitney]] (1871–1933), U.S. – [[postage meter]]
* [[Hippolyte Pixii]] (1808–1835), France – [[Dynamo#Pixii's dynamo|Pixii dynamo]]
* [[Joseph Plateau]] (1801–1883), Belgium – [[phenakistiscope]] (stroboscope)
* [[Baltzar von Platen (inventor)|Baltzar von Platen]] (1898–1984), Sweden – [[gas absorption refrigerator]]
* [[James Leonard Plimpton]] (1828–1911), U.S. – [[quad skates|roller skates]]
* [[Ivan Plotnikov]] (1902–1995), Russia – [[kirza]] leather
* [[Roy Plunkett]] (1910–1994), U.S. – [[Teflon]]
* [[Petrache Poenaru]] (1799–1875), [[Romania]] – [[fountain pen]]
* [[Christopher Polhem]] (1661–1751), Sweden – [[Padlock]]
* [[Nikolai Nikolaevich Polikarpov|Nikolai Polikarpov]] (1892–1944), Russia – [[Polikarpov|Po]]-series aircraft, including [[Polikarpov Po-2]] ''Kukuruznik'' (world's [[List of most produced aircraft|most produced biplane]])
* [[Eugene Polley]] (1915–2012), U.S. – wireless [[remote control]] (with [[Robert Adler]])
* [[Ivan Polzunov]] (1728–1766), Russia – first two-cylinder [[steam engine]]
* [[Mikhail Pomortsev]] (1851–1916), Russia  – [[nephoscope]]
* [[Olivia Poole]] (1889–1975), U.S. – Jolly Jumper baby harness
* [[Alexander Stepanovich Popov|Alexander Popov]] (1859–1906), Russia – radio pioneer, created a [[radio receiver]] that worked as a [[lightning detector]]
* [[Nikolay Popov]] (1931–2008), Russia – first fully [[gas turbine]] main battle tank ([[T-80]])
* [[Josef Popper]]  (1838–1921), Austria – discovered the transmission of power by electricity.
* [[Aleksandr Porokhovschikov]] (1892–1941), Russia – [[Vezdekhod]] (the first prototype [[tank]], or [[tankette]], and the first [[continuous track|caterpillar]] [[amphibious ATV]])
* [[Ignazio Porro]] (1801–1875), Italy – [[Porro prism]], [[strip camera]]
* [[Valdemar Poulsen]] (1869–1942), Denmark – [[Wire recording|magnetic wire recorder]], [[arc converter]]
* [[Joseph Priestley]] (1733–1804), UK – [[soda water]]
* [[Robert Taylor Pritchett]] (1828–1907), UK – Pritchett bullet
* [[Alexander Procofieff de Seversky]] (1894–1974), Russia/U.S. – first [[gyroscope|gyroscopically]] stabilized bombsight, [[ionocraft]], also developed [[air-to-air refueling]]
* [[Alexander Prokhorov]] (1916–2002), Russia – co-inventor of [[laser]] and [[maser]]
* [[Petro Prokopovych]] (1775–1850), [[Russian Empire]] – early [[Frame (beehive)|beehive frame]], [[queen excluder]] and other [[beekeeping]] novelties
* [[Sergey Prokudin-Gorsky]] (1863–1944), Russia/France – early [[colour photography]] method based on three colour channels, also colour film slides and colour [[motion pictures]]
* [[Mark Publicover]] (born 1958), U.S. – first affordable [[trampoline safety net enclosure]]
* [[George Pullman]] (1831–1897), U.S. – Pullman [[sleeping car|sleep wagon]]
* [[Ivan Puluj]] (1845–1918), Russia/Ukraine – [[X-rays]]
* [[Michael I. Pupin]] (1858–1935), [[Serbia]] – [[pupinization]] (loading coils), tunable oscillator
* [[Tivadar Puskás]] (1844–1893), Hungary – [[telephone exchange]]

===Q===
* [[Calvin Quate]] (1923–2019), with [[Gerd Binnig]] (born 1947), and with [[Christoph Gerber]] (1942–), U.S./Germany/Switzerland – [[Atomic force microscope]]
* [[Adolphe Quetelet]] (1796–1874), France/Belgium – [[Body mass index|Body mass index (BMI)]]

===R===
* [[Jacob Rabinow]] (1910–1999), U.S. – [[Magnetic particle clutch]], various [[Phonograph]]-related patents
* [[John Goffe Rand]] (1801–1873), U.S. – [[Tube (container)]]
* [[Robert Ransome]] (1753–1830), England – improvement to the plough
* [[Muhammad ibn Zakarīya Rāzi]] (Rhazes) (865–965), [[History of Iran|Persia]]/[[Iran]] – [[distillation]] and [[Extraction (chemistry)|extraction]] methods,[[hydrochloric acid]], [[soap]] [[kerosene]], [[kerosene lamp]], [[chemotherapy]], [[sodium hydroxide]]
* [[Alec Reeves]] (1902–1971), UK – [[Pulse-code modulation]]
* [[Karl von Reichenbach]] (1788–1869), Germany – [[Kerosene|paraffin]], [[creosote|creosote oil]], [[phenol]]
* [[Tadeus Reichstein]] (1897–1996), Poland/Switzerland – [[Reichstein process]] (industrial vitamin C synthesis)
* [[Ira Remsen]] (1846–1927), U.S. – [[saccharin]]
* [[Ralf Reski]] (born 1958), Germany – [[Moss bioreactor]] 1998
* [[Josef Ressel]] (1793–1857), [[Czechoslovakia]] – ship [[propeller]]
* [[William Reynolds (industrialist)|William Reynolds]] (1758–1803), England – [[canal inclined plane]]
* [[Ri Sung-gi]] (1905–1996), North Korea – [[Vinylon]]
* [[Charles Francis Richter]] (1900–1985), U.S. – [[Richter magnitude scale]]
* [[Adolph Rickenbacker]] (1886–1976), Switzerland – [[Electric guitar]]
* [[Hyman George Rickover]] (1900–1986), U.S. – [[Nuclear submarine]]
* [[Niklaus Riggenbach]] (1817–1899), Switzerland – [[Rack railway#Riggenbach|Riggenbach rack railway system]], [[Counter-pressure brake]]
* [[Dennis Ritchie]] (1941–2011), U.S. – [[C (programming language)]]
* [[Gilles de Roberval]] (1602–1675), France – [[Roberval balance]]
* [[John Roebuck]] (1718–1794) UK – [[lead chamber process]] for sulfuric acid synthesis
* [[Francis Rogallo]] (1912–2009), U.S. – [[Rogallo wing]]
* [[Heinrich Rohrer]] (1933–2013), together with [[Gerd Binnig]] (1947–), Switzerland/Germany – [[Scanning tunneling microscope]]
* [[Peter I of Russia|Peter I the Great]] (Pyotr Alexeyevich Romanov), [[Tsar]] and [[Emperor of Russia]] (1672–1725), Russia – [[decimal currency]], [[yacht club]], [[sounding line]] with separating [[plumb-bob|plummet]] ([[Deep-sea exploration#Oceanographic Instrumentation|sounding weight probe]])
* [[Wilhelm Conrad Röntgen]] (1845–1923), Germany – the [[X-ray machine]]
* [[Ida Rosenthal]] (1886–1973), [[Belarus]]/Russia/U.S. – [[Bra]] ([[Maidenform]]), the standard of [[Bra sizing|cup size]]s, [[nursing bra]], full-figured bra, the first seamed uplift bra (all with her husband William)
* [[Sidney Rosenthal]] (1907–1979), U.S. – [[Magic Marker]]
* [[Eugene Roshal]] (born 1972), Russia – [[FAR Manager|FAR]] file manager, [[RAR (file format)|RAR]] [[file format]], [[WinRAR]] [[file archiver]]
* [[Boris Rosing]] (1869–1933), Russia – [[CRT television]] (first television system using [[cathode-ray tube]] on the receiving side)
* [[Guido van Rossum]] (born 1956), The Netherlands – [[Python (programming language)]]
* [[M. A. Rothman|Michael Rothman]], U.S. – [[UEFI]]
* [[Subrata Roy (scientist)]] (born 1962), India, U.S. – [[Wingless Electromagnetic Air Vehicle]], [[Serpentine geometry plasma actuator]], [[Wingless Electromagnetic Air Vehicle#Novel Technologies|micro-scale actuators]]
* [[Jean-François Pilâtre de Rozier]] (1754–1785), France – [[Rozière balloon]]
* [[Ernő Rubik]] (born 1944), Hungary – [[Rubik's Cube]], [[Rubik's Magic]] and [[Rubik's Clock]]
* [[Kay LeRoy Ruggles]] (1932–2012), U.S. – inventor and designer known for UMBO shelving and furniture
* [[Ernst Ruska]] (1906–1988), Germany – [[electron microscope]]
* [[William Chester Ruth]] (1882–1971), U.S. – combination baler feeder, self-lifting farm elevator
* [[François van Rysselberghe]] (1846–1893), Belgium – Universal meteorograph, [[Condenser telephone]]
* [[Stockton Rush]] (1962–2023), U.S. – co-founder and chief executive officer of [[OceanGate]]

===S===
* [[Albert Sabin|Albert Bruce Sabin]] (1906–1993), U.S. – oral [[Polio vaccine]]
* [[Alexander Sablukov]] (1783–1857), Russia – [[centrifugal fan]]
* [[Şerafeddin Sabuncuoğlu]] (1385–1468), Turkey – illustrated [[Surgery|surgical]] atlas
* [[Andrei Sakharov]] (1921–1989), Russia – invented [[explosively pumped flux compression generator]], co-developed the [[Tsar Bomba]] and [[tokamak]]
* [[Jonas Salk|Jonas Edward Salk]] (1914–1995), U.S. – injection [[Polio vaccine]]
* [[Robert Salmon (inventor)|Robert Salmon]] (1763–1821), England – agricultural implements
* [[Franz San Galli]] (1824–1908), Poland/Russia ([[Italian people|Italian]] and [[German people|German]] descent) – [[radiator]], [[central heating]]
* [[Frederick Sanger]] (1918–2013), U.S. – [[Sanger sequencing]] (= DNA sequencing)
* [[Yoshiyuki Sankai]] (born c. 1957), Japan – [[Hybrid Assistive Limb|Robotic exoskeleton for motion support]] (medicine)
* [[Alberto Santos-Dumont]] (1873–1932), Brazil – [[airship|non-rigid airship]] and [[airplane]]
* [[Arthur William Savage]] (1857–1938) – [[radial tire]]s, [[magazine (firearms)|gun magazine]]s, [[Savage Model 99]] [[lever action rifle]]
* [[Thomas Savery]] (1650–1715), UK – [[steam engine]]
* [[Adolphe Sax]] (1814–1894), Belgium – [[saxophone]]
* [[Vincent Schaefer|Vincent Joseph Schaefer]] (1906–1993), U.S. – [[Cloud seeding]] by [[dry ice]]
* [[Bela Schick]] (1877–1967), Hungary – [[Schick test|diphtheria test]]
* [[Wilhelm Schickard]] (1592–1635), Germany – mechanical calculator
* [[Hugo Schiff]] (1834–1915), Germany – [[Schiff test]] (histology)
* [[Pavel Schilling]] (1786–1837), [[Estonia]]/Russia – first [[electromagnetic telegraph]], [[Land mine|mine]] with an electric [[fuse (electrical)|fuse]]
* [[Gilmore Schjeldahl]] (1912–2002), U.S. – [[Airsickness bag]]
* [[Hubert Schlafly]] (1919–2011), U.S. – [[Teleprompter]] = [[Teleprompter|Autocue]]
* [[Wilhelm Schlenk]] (1879–1943), Germany – [[Schlenk flask]] (chemistry)
* [[Bernhard Schmidt]] (1879–1935), Estonia/Germany – [[Schmidt camera]]
* [[Friedrich Schmiedl]] (1902–1994), Austria – rocket mail
* [[Otto Schmitt]] (1913–1998), U.S. – [[Schmitt trigger]] (electronics)
* [[Christian Schnabel]] (1878–1936), German – simplistic food cutleries
* [[Kees A. Schouhamer Immink]] (born 1946), Netherlands – Major contributor to development of [[compact disc]]
* [[August Schrader]] (1807–1894), U.S. – [[Schrader valve]] for [[Pneumatic tire]]
* [[David Schwarz (aviation inventor)|David Schwarz]] (1852–1897), [[Croatia]], – rigid [[airship]], later called [[Zeppelin]]
* [[Raymond Scott]] (1908–1994), U.S. – inventor and developer of electronic music technology
* [[Girolamo Segato]] (1792–1836), Italy – artificial [[petrifaction]] of human [[cadaver]]s
* [[Marc Seguin]] (1786–1875), France – [[suspension bridge|wire-cable suspension bridge]]
* [[Hanaoka Seishū]] (1760–1835), Japan – [[General anaesthetic]]
* [[Sejong the Great]] (1397–1450), South Korea (Joseon dynasty) – [[Hangul]] (Native alphabet of the Korean language)
* [[Ted Selker]] (inv. 1987), U.S. – [[Pointing stick]]
* [[Léon Serpollet]] (1858–1907), France – [[Flash boiler]], [[Gardner-Serpollet|Gardner-Serpollet steam car]]
* [[Iwan Serrurier]] (1878–1953), Netherlands/U.S. – inventor of the [[Moviola]] for [[film editing]]
* [[Mark Serrurier]] (1904–1988), U.S. – [[Serrurier truss]] for [[Optical telescopes]]
* [[Gerhard Sessler]] (born 1931), Germany – [[electret microphone|foil electret microphone]], [[microphone#MEMS microphone|silicon microphone]]
* [[Guy Severin]] (1926–2008), Russia – [[extra-vehicular activity]] supporting system
* [[Ed Seymour]] (inv. c. 1949), U.S. – [[Aerosol paint]]
* [[Leonty Shamshurenkov]] (1687–1758), Russia – first [[self-propelling carriage]] (a precursor to both [[bicycle]] and [[automobile]]), projects of an original [[odometer]] and self-propelling [[sledge]]
* [[Ibn al-Shatir]] (1304–1375), [[Syria]] – "jewel box" device which combined a compass with a universal sundial
* [[Bi Sheng]] ({{zh|c=畢昇}}) (c. 990–1051), China – [[clay]] [[movable type]] [[printing]]
* [[Patsy O’Connell Sherman]] (1930–2008), U.S. – [[Scotchgard]]
* [[Murasaki Shikibu]] (c. 973–1025), Japan – [[psychological novel]]
* [[Pyotr Shilovsky]] (1871–1957), Russia/UK – [[gyrocar]]
* [[Masatoshi Shima]] (born 1943), Japan – [[microprocessor]]
* [[Fathullah Shirazi]] (c. 1582), [[Mughal Empire|Mughal India]] – early [[volley gun]]
* [[Joseph Shivers]] (1920–2014), U.S. – [[Spandex]]
* [[William Shockley|William Bradford Shockley]] (1910–1989), U.S. – co-inventor of [[transistor]]
* [[Henry Shrapnel]] (1761–1842), UK – [[Shrapnel shell]] ammunition
* [[Vladimir Shukhov]] (1853–1939), Russia – [[Cracking (chemistry)|thermal cracking]] ([[Shukhov cracking process]]), [[thin-shell structure]], [[tensile structure]], [[hyperboloid structure]], [[gridshell]], [[Pipeline transport|oil pipeline]], cylindric [[oil depot]]
* [[Sheikh Muszaphar Shukor]] (born 1972), [[Malaysia]] – [[Cell (biology)|cell]] growth in [[outer space]], [[crystallization]] of [[protein]]s and [[microbe]]s in space
* [[Augustus Siebe]] (1788–1872), Germany/UK – Inventor of the [[standard diving dress]]
* [[Carl Wilhelm Siemens|Sir William Siemens]] (1823–1883), Germany – [[Siemens regenerative furnace|regenerative furnace]]
* [[Werner von Siemens]] (1816–1892), Germany – electric [[elevator]], [[Electromote]] (= first [[trolleybus]]), an early [[Dynamo#Siemens and Wheatstone dynamo (1867)|Dynamo]]
* [[Igor Sikorsky]] (1889–1972), Russia/U.S. – first four-engine [[fixed-wing aircraft]] ([[Russky Vityaz]]), first [[airliner]] and purpose-designed [[bomber]] ([[Sikorsky Ilya Muromets|Ilya Muromets]]), [[helicopter]], [[Sikorsky Aircraft Corporation|Sikorsky]]-series helicopters
* [[Bernard Silver]] (1924–1963), together with [[Norman Joseph Woodland]] (1921–2012), U.S. – [[Barcode]]
* [[Kia Silverbrook]] (born 1958), Australia – [[Memjet printer]], world's most [[List of prolific inventors|prolific inventor]]
* [[Luther Simjian]] (1905–1997), [[Armenia]]/U.S. – [[Automated teller machine]] (ATM)
* [[Vladimir Simonov (engineer)|Vladimir Simonov]] (1935–2020), Russia – [[APS Underwater Assault Rifle]], [[SPP-1 underwater pistol]]
* [[Charles Simonyi]] (born 1948), Hungary – [[Hungarian notation]]
* [[Avicenna|Ibn Sina (Avicenna)]] (980–1037), [[History of Iran|Persia]]/[[Iran]] – [[steam distillation]], [[essential oil]], [[pharmacopoeia]], [[clinical pharmacology]], [[clinical trial]], [[randomized controlled trial]], [[quarantine]], [[cancer]] surgery, [[Alternative cancer treatments|cancer therapy]], [[pharmacotherapy]], [[phytotherapy]], Hindiba, [[Taxus baccata]] L, [[calcium channel blocker]]
* [[Clive Sinclair]] (1940–2021), U.K. – [[Sinclair C5]], [[ZX Spectrum]] and [[A-bike]]
* [[Isaac Singer]] (1811–1875), U.S. – [[sewing machine]]
* [[B. F. Skinner]] (1904–1990), U.S. – [[Operant conditioning chamber]]
* [[Hannah Slater]] (1774–1812), U.S. – cotton-sewing thread
* [[Nikolay Slavyanov]] (1854–1897), Russia – [[shielded metal arc welding]]
* [[Alexander Smakula]] (1900–1983), [[Ukraine]]/Russia/U.S. – [[anti-reflective coating]]
* [[Michael Smith (chemist)|Michael Smith]] (1932–2000), U.S. – [[Site-directed mutagenesis]] (molecular biology)
* [[Oliver Smithies]] (1925–2017), together with [[Martin Evans|Sir Martin John Evans]] (born 1941), and [[Mario Capecchi|Mario Ramberg Capecchi]] (born 1937), U.S. – [[Knockout mouse]], [[Gene targeting]]
* [[Yefim Smolin]], Russia – [[table-glass]] (''stakan granyonyi'')
* [[Friedrich Soennecken]] (1848–1919), Germany – [[Ring binder]], [[Hole punch]]
* [[Su Song]] (1020–1101), China – first [[chain drive]]
* [[Marin Soljačić]] (born 1974), Croatia – [[Resonant inductive coupling]]
* [[Edwin Southern]] (born 1938), U.S. – [[Southern blot]] (molecular biology)
* [[Alfred P. Southwick]] (1826–1898), U.S. – [[Electric chair]]
* [[Igor Spassky]] (1926–2024), Russia – [[Sea Launch]] platform
* [[Percy Spencer]] (1894–1970), U.S. – [[microwave oven]]
* [[Elmer Ambrose Sperry]] (1860–1930), U.S. – gyroscope-guided [[autopilot|automatic pilot]]
* [[Lyman Spitzer]] (1914–1997), U.S. – [[Stellarator]] (physics)
* [[Frank J. Sprague]] (1857–1934), father of electric traction, electric elevator improvements and electric multiple unit trains.
* [[Richard Stallman]] (born 1953), U.S. – [[GNU]] operating system, [[GNU Emacs]], [[GNU Compiler Collection]]
* [[Ladislas Starevich]] (1882–1965), Russia/France – [[puppet animation]], [[live-action/animated film]]
* [[Gary Starkweather]] (1938–2019), U.S. – [[laser printer]], [[color management]]
* [[John Kemp Starley]] (1855–1901), U.K. – [[safety bicycle]]
* [[Betsey Ann Stearns]] (1830–1914), U.S. – garment cutting diagram and system
* [[Boris Stechkin]] (1891–1969), Russia – co-developer of [[Sikorsky Ilya Muromets]] and [[Tsar Tank]], developer of Soviet [[heat engine|heat]] and [[aircraft engine]]s
* [[George Stephenson]] (1781–1848), UK – [[steam railway]]
* [[Simon Stevin]] (1548–1620), Netherlands – [[land yacht]]
* [[Andreas Stihl]] (1896–1973), Switzerland/Germany – electric [[chain saw]]
* [[Robert Stirling|Reverend Dr Robert Stirling]] (1790–1878), Scotland – [[Stirling engine]]
* [[Aurel Stodola]] (1859–1942), [[Slovakia]] – [[gas turbines]]
* [[Aleksandr Stoletov]] (1839–1896), Russia – first [[solar cell]] based on the outer [[photoelectric effect]]
* [[Levi Strauss]] (1829–1902), U.S. – blue [[jeans]]
* [[John Stringfellow]] (1799–1883), UK – [[aerial steam carriage]]
* [[Bjarne Stroustrup]] (born 1950), Denmark – [[C++]] (programming language)
* [[Almon Strowger]] (1839–1902), U.S. – [[automatic telephone exchange]]
* [[Emil Strub]] (1858–1909), Switzerland – [[Rack railway#Strub|Strub rack railway system]]
* [[Abd al-Rahman al-Sufi]] (Azophi) (903–986), [[History of Iran|Persia]]/[[Iran]] – timekeeping [[astrolabe]], [[Mariner's astrolabe|navigational astrolabe]], [[surveying]] astrolabe
* [[René Núñez Suárez]] (born 1945/1946), [[El Salvador]] – "turbococina" (turbo-cooker)
* [[Kyota Sugimoto]] (1882–1972), Japan – [[Japanese typewriter|Japanese language typewriter]]
* [[Mutsuo Sugiura]] (1918–1986), Japan – [[Esophagogastroduodenoscopy|Esophagogastroduodenoscope]]
* [[Pavel Sukhoi]] (1895–1975), Russia – [[Sukhoi|Su]]-series [[fighter aircraft]]
* [[Sushruta]] (600 BC), [[Vedic India]] – inventor of Plastic Surgery, Cataract Surgery, Rhinoplasty
* [[Theodor Svedberg]] (1884–1971), Sweden – [[Ultracentrifuge|Analytical ultracentrifuge]]
* [[Joseph Swan]] (1828–1914), UK – [[Incandescent light bulb]]
* [[Robert Swanson (inventor)|Robert Swanson]] (1905–1994), Canada – invented and developed the first multi-chime [[train horn|air horn]] for use with [[diesel locomotive]]s
* [[Andrei Sychra]] (c.1773/76–1850), [[Lithuania]]/Russia, [[Czech people|Czech]] descent – [[Russian guitar|Russian seven-string guitar]]
* [[Walter Sylvester]] (1867–1944), UK – the "Sylvester", for safely removing pit props
* [[Vladimir Syromyatnikov]] (1933–2006), Russia – [[Androgynous Peripheral Attach System]] and other [[spacecraft]] docking mechanisms
* [[Simon Sze]] (1936–2023), Taiwan/U.S., together with [[Dawon Kahng]] (1931–1992), South Korea – [[Floating-gate MOSFET]]
* [[Leó Szilárd]] (1898–1964), Hungary/U.S. – co-developed the [[atomic bomb]], patented the [[nuclear reactor]], catalyst of the [[Manhattan Project]]

===T===
* [[Gyula Takátsy]] (1914–1980), Hungary – first [[Microtiter plate]]
* [[Esther Takeuchi]] (born 1953) – holds more than 150 US-patents, the largest number for any woman in the United States
* [[Igor Tamm]] (1895–1971), Russia – co-developer of [[tokamak]]
* [[Ching W. Tang]] (born 1947), Hong Kong/U.S., together with [[Steven Van Slyke]], U.S. – [[OLED]]
* [[Mardi bin Ali al-Tarsusi]] (c. 1187), Middle East – counterweight [[trebuchet]], [[mangonel]]
* [[Gustav Tauschek]] (1899–1945), Austria – [[Drum memory]]
* [[Kenyon Taylor]] (1908–1986), U.S. – [[Flip-disc display]]
* [[Bernard Tellegen]] (1900–1990), Netherlands – [[pentode]]
* [[Edward Teller]] (1908–2003), Hungary – [[hydrogen bomb]]
* [[Eli Terry]] (1772–1852)
* [[Michel Ter-Pogossian]] (1925–1996), Armenia/U.S. – [[Positron emission tomography]] (PET)
* [[Nikola Tesla]] (1856–1943), Serbia – [[induction motor]], high-voltage / high-frequency power experiments, the transmission of electrical power
* [[Avie Tevanian]] (born 1961), Armenia/U.S. – [[Mach kernel]], [[NeXTSTEP]], [[macOS]]
* [[Léon Theremin]] (1896–1993), Russia – [[theremin]], [[Interlaced video|interlace]], [[burglar alarm]], [[terpsitone]], [[Rhythmicon]] (first [[drum machine]]), The [[Thing (listening device)]]
* [[Charles Xavier Thomas]] de Colmar (1785–1870), France – [[Arithmometer]]
* [[Elihu Thomson]] (1853–1937), UK, U.S. – Prolific inventor, [[Arc lamp]] and many others
* [[William Thomson, 1st Baron Kelvin]] (1824–1907), UK – [[Kelvin]] absolute temperature scale
* [[Eric Tigerstedt]] (1887–1925), Finland – [[Sound-on-film]], triode [[vacuum tube]]
* [[Kálmán Tihanyi]] (1897–1947), Hungary – co-inventor of [[cathode-ray tube]] and [[iconoscope]], infrared video camera, [[plasma display]]
* [[Mikhail Tikhonravov]] (1900–1974), Russia – co-developer of [[Sputnik 1]] (the first artificial satellite) together with [[Sergey Korolyov|Korolyov]] and [[Mstislav Keldysh|Keldysh]], designer of further [[Sputnik]]s
* [[Gavriil Adrianovich Tikhov]] (1875–1960), Russia – feathering [[spectrograph]]
* [[Benjamin Chew Tilghman]] (1821–1897), U.S. – [[sandblasting]]
* [[Fedor Tokarev]] (1871–1968), Russia – [[TT-33]] semiautomatic handgun and [[SVT-40]] self-loading rifle
* [[Ray Tomlinson]] (1941–2016), U.S. – First inter-computer [[email]]
* [[Evangelista Torricelli]] (1608–1647), Italy – [[barometer]]
* [[Linus Torvalds]] (born 1969), Finland/U.S. – [[Linux kernel]]
* [[Alfred Traeger]] (1895–1980), Australia – [[Pedal radio#Pedal-powered transmitter|Pedal radio]]
* [[Lloyd Trammell]] (born 1953), U.S. – inventor in the field of dimensional sound processing
* [[Richard Trevithick]] (1771–1833), UK – high-pressure [[steam engine]], first full-scale [[steam locomotive]]
* [[Franc Trkman]] (1903–1978), [[Slovenia]] – electrical switches, accessories for opening windows
* [[Hans Tropsch]] (1889–1935), together with [[Franz Joseph Emil Fischer]] (1877–1947), Germany – [[Fischer–Tropsch process]] (refinery process)
* [[Yuri Trutnev (scientist)|Yuri Trutnev]] (1927–2021), Russia – co-developer of the [[Tsar Bomba]]
* [[Roger Y. Tsien]] (1952–2016), together with [[Osamu Shimomura]] (1928–2018) and [[Martin Chalfie]] (born 1947), U.S. – Discovery and development of [[Green fluorescent protein]]
* [[Konstantin Tsiolkovsky]] (1857–1935), Russia – [[spaceflight]]
* [[Mikhail Tsvet]] (1872–1919), Russia – [[chromatography]] (specifically [[adsorption chromatography]], the first chromatography method)
* [[Alexei Tupolev]] (1925–2001), Russia – the [[Tupolev Tu-144]] (first [[supersonic]] passenger jet)
* [[Andrei Tupolev]] (1888–1972), Russia – [[turboprop]] powered long-range airliner ([[Tupolev Tu-114]]), [[turboprop]] strategic bomber ([[Tupolev Tu-95]])
* [[Alan Turing]] (1912–1954), UK – [[Turing machine]]
* [[Nasīr al-Dīn al-Tūsī]] (1201–1274), [[History of Iran|Persia]]/[[Iran]] – [[observatory]], [[Tusi-couple]]
* [[Sharaf al-Dīn al-Tūsī]] (1135–1213), [[History of Iran|Persia]]/[[Iran]] – linear [[astrolabe]]
* [[Ralph Hart Tweddell]] (1843–1895), England – portable hydraulic riveter

===U===
* [[Shintaro Uda]] (1869–1976), together with [[Hidetsugu Yagi]] (1886–1976), Japan – [[Yagi–Uda antenna]]–
* [[Lewis Urry]] (1927–2004), Canada – long-lasting [[alkaline battery]]
* [[Tomislav Uzelac]], Croatia – first successful MP3 player, AMP

===V===
* [[Ira Van Gieson]] (1866–1913), U.S. – [[Van Gieson's stain]] (histology)
* [[Theophilus Van Kannel]] (1841–1919), U.S. – [[revolving door]] (1888)
* [[Vladimir Veksler]] (1907–1966), Russia – [[synchrophasotron]], co-inventor of [[synchrotron]]
* [[John Venn]] (1834–1923), UK – [[Venn diagram]] (1881)
* [[Claude Hamilton Verity]] (1880–1949), United Kingdom – Veritiphone, synchronisation of sound and film
* [[Auguste Victor Louis Verneuil]] (1856–1913), France – [[Verneuil process]] (crystal growth)
* [[Pierre Vernier]] (1580–1637), France – [[Vernier scale]] (1631)
* [[Lucien Vidi]] (1805–1866), France – [[Barograph]]
* [[Edgar Villchur]] (1917–2011), U.S. – [[Acoustic suspension]] (loudspeaker)
* [[Artturi Ilmari Virtanen]] (1895–1973), Finland – [[AIV fodder]]
* [[Alessandro Volta]] (1745–1827), Italy – [[Battery (electricity)|battery]], see also [[Voltaic pile]]
* [[Bernard Vonnegut]] (1914–1997), together with [[Cloud seeding|Henry Chessin]], and [[Cloud seeding|Richard E. Passarelli Jr.]], U.S. – [[Cloud seeding]] by [[silver iodide]]
* [[Ivan Vučetić]] (1858–1925), Croatia – method of [[fingerprint]] classification

===W===
* [[Ruth Graves Wakefield]] (1903–1977), U.S. – [[chocolate chip cookie]]
* [[Paul Walden]] (1863–1957), [[Latvia]]/Russia/Germany – [[Walden inversion]], [[Ethylammonium nitrate]] (the first room temperature [[ionic liquid]])
* [[Adam Walker (inventor)|Adam Walker]] (1730–1821), UK – [[eidouranion]]
* [[Madam C.J. Walker]] (1867–1919), U.S. – beauty and hair products for African American women
* [[Barnes Wallis]] (1887–1979), UK – [[bouncing bomb]]
* [[Frederick Walton]] (c. 1834–1928), UK – [[Linoleum]]
* [[Maurice Ward]] (1933–2011), UK – [[Starlite]]
* [[David Warren (inventor)|David Warren]] (1925–2010), Australia – [[Flight data recorder]] (FDR) and [[Cockpit voice recorder]] (CDR)
* [[Aldred Scott Warthin]] (1866–1931), together with Allen Chronister Starry (1890–1973), U.S. – [[Warthin–Starry stain]] (histology)
* [[Robert Watson-Watt]] (1892–1973), Scotland – microwave [[radar]]
* [[James Watt]] (1736–1819), Scotland – improved [[Steam engine]]
* [[Thomas Wedgwood (1771–1805)|Thomas Wedgwood]] (1771–1805), UK – first (not permanent) photograph
* [[Carl Auer von Welsbach]] (1858–1929), Austria – [[Gas mantle]], [[ferrocerium]]
* [[Jonas Wenström]] (1855–1893), Sweden – [[Three-phase electric power|three-phase electrical power]]
* [[George Westinghouse]] (1846–1914), U.S. – [[Air brake (rail)]]
* [[Charles Wheatstone]] (1802–1875), UK – [[concertina]], [[stereoscope]], [[microphone]], [[Playfair cipher]], [[pseudoscope]], [[Dynamo#Siemens and Wheatstone dynamo (1867)|dynamo]]
* [[Richard T. Whitcomb]] (1921–2009), U.S. – [[Supercritical airfoil]], [[Wingtip device|Winglet]]
* [[Cornelius Whitehouse]] (1796–1883), UK – method of manufacturing tubes cheaply and accurately
* [[Eli Whitney]] (1765–1825), U.S. – [[cotton gin]]
* [[Frank Whittle]] (1907–1996), UK – co-inventor of the [[jet engine]]
* [[Otto Wichterle]] (1913–1989), [[Czechoslovakia]] – [[soft contact lens]]
* [[Norman Wilkinson (artist)|Norman Wilkinson]] (1878–1971), UK – [[Dazzle camouflage]]
* [[Charles Thomson Rees Wilson]] (1869–1959), UK – [[Cloud chamber]]
* [[Paul Winchell]] (1922–2005), U.S. – [[artificial heart]]
* [[Sergei Winogradsky]] (1856–1953), Russia / USSR – [[Winogradsky column]] for culturing microorganisms
* [[Niklaus Wirth]] (1934–2024), Switzerland – [[Pascal (programming language)]]
* [[A. Baldwin Wood]] (1879–1956), U.S. – high volume pump
* [[Norman Joseph Woodland]] (1921–2012), together with [[Bernard Silver]] (1924–1963), U.S. – [[Barcode]]
* [[Granville Woods]] (1856–1910), U.S. – Synchronous Multiplex Railway Telegraph
* [[Steve Wozniak]] (born 1950), U.S. – [[Apple I]] & [[Apple II|II]] computers, early [[Mac (computer)|Macintosh]] concepts,  [[CL 9|CL 9 CORE]] [[universal remote]] and other devices and applications.
* [[James Homer Wright]] (1869–1928), U.S. – [[Wright's stain]] (histology)
* [[Wright brothers]], Orville (1871–1948) and Wilbur (1867–1912), U.S. – [[Fixed-wing aircraft|powered airplane]]
* [[Wu Yulu]], Chinese farmer and inventor of home-made robots
* [[Adam Wybe]] (1584–1653), Dutch – inventor of the cable car on multiple supports
* [[Arthur Wynne]] (1871–1945), UK – creator of [[crossword puzzle]]

===X===
* [[Yi Xing]] (683–727), China – [[Astronomical clock]]

===Y===
* [[Pavel Yablochkov]] (1847–1894), Russia – [[Yablochkov candle]] (first commercially viable electric carbon [[arc lamp]])
* [[Hidetsugu Yagi]] (1886–1976), together with [[Shintaro Uda]] (1896–1976), Japan – [[Yagi–Uda antenna]]
* [[Alexander Sergeyevich Yakovlev|Alexander Yakovlev]] (1906–1989), Russia – [[Yakovlev|Yak]]-series aircraft, including [[Yakovlev Yak-40]] (the first [[regional jet]])
* [[Linus Yale Jr.]] (1821–1868), U.S. – [[cylinder lock]]
* [[Linus Yale Sr.]] (1797–1858), U.S. – [[pin tumbler lock]]
* [[Shunpei Yamazaki]] (born 1942), Japan – patents in [[computer science]] and [[solid-state physics]], see [[List of prolific inventors]]
* [[Gazi Yaşargil]] (born 1925), Turkey – [[Microneurosurgery]]
* [[Ryōichi Yazu]] (1878–1908), Japan – [[Ryōichi Yazu|Yazu Arithmometer]]
* [[Gunpei Yokoi]] (1941–1997), Japan – [[Game Boy]]
* [[Arthur M. Young]] (1905–1995), U.S. – [[Bell Helicopter]]
* [[Vladimir Yourkevich]] (1885–1964), Russia/France/U.S. – ship [[hull (watercraft)|hull]] design
* [[Tu Youyou]] (born 1930), China – [[Artemisinin]]
* [[Sergei Yudin (surgeon)|Sergei Yudin]] (1891–1954), Russia – [[cadaveric blood transfusion]] and other medical operations
* [[Muhammad Yunus]] (born 1940), [[Bangladesh]] – [[microcredit]], [[microfinance]]
* [[A. Albert Yuzpe|Abraham Albert Yuzpe]] (born 1938), U.S. – [[Yuzpe regimen]] (= form of [[Emergency contraception]])

===Z===
* [[Abu al-Qasim al-Zahrawi]] (Abulcasis) (936–1013), [[Al-Andalus|Islamic Spain]] – [[catgut]] [[surgical suture]], various surgical instruments and dental devices
* [[Frank Zamboni]] (1901–1988), U.S. – [[Ice resurfacer]]
* [[Giuseppe Zamboni]] (1776–1846), Italy – [[Zamboni pile]] (early battery)
* [[L. L. Zamenhof|Ludwik Łazarz Zamenhof]] (1859–1917), Russia/Poland – [[Esperanto]]
* [[Walter Zapp]] (1905–2003), Latvia/Estonia/Germany – [[Minox]] (subminiature camera)
* [[Abū Ishāq Ibrāhīm al-Zarqālī]] (Arzachel) (1028–1087), [[Al-Andalus|Islamic Spain]] – [[almanac]], [[equatorium]], universal [[astrolabe]]
* [[Yevgeny Zavoisky]] (1907–1976), Russia – [[EPR spectroscopy]], co-developer of [[NMR spectroscopy]]
* [[Nikolay Zelinsky]] (1861–1953), Russia – first effective filtering coal [[gas mask]] in the world
* [[Ferdinand von Zeppelin]] (1838–1917), Germany – [[Zeppelin]]
* [[Frits Zernike]] (1888–1966), The Netherlands – [[Phase contrast microscopy|Phase contrast microscope]]
* [[Tang Zhongming]] (1897–1980), China – [[internal combustion engine]] powered by [[charcoal]]
* [[Jian Zhou]] (1957–1999), together with [[Ian Frazer|Ian Hector Frazer]] (born 1953), China/U.S. – [[HPV vaccine]] against [[cervical cancer]]
* [[Nikolay Yegorovich Zhukovsky|Nikolai Zhukovsky]] (1847–1921), Russia – early [[wind tunnel]], co-developer of the [[Tsar Tank]]
* [[Karl Ziegler]] (1898–1973), together with [[Giulio Natta]] (1903–1979), Germany/Italy – [[Ziegler–Natta catalyst]]
* [[Franz Ziehl]] (1857–1926), together with [[Friedrich Neelsen]] (1854–1898), Germany – [[Ziehl–Neelsen stain]] (histology)
* [[Konrad Zuse]] (1910–1995), Germany – invented the first programmable general-purpose computer ([[Z1 (computer)|Z1]], [[Z2 (computer)|Z2]], [[Z3 (computer)|Z3]], [[Z4 (computer)|Z4]])
* [[Vasily Zvyozdochkin]] (1876–1956), Russia – [[matryoshka doll]] (together with [[Sergey Malyutin]])
* [[Vladimir Zworykin]] (1889–1982), Russia/U.S. – [[Iconoscope]], [[kinescope]]

==See also==
* [[Creativity techniques]]
* [[List of emerging technologies]]
* [[List of prolific inventors]]
* [[Ten Japanese Great Inventors]]
* [[The heroic theory of invention and scientific development]]
* [[Timeline of historic inventions]]
* [[List of African-American inventors and scientists]]

==References==
{{commons category|Inventors}}
{{Reflist}}

{{Compact TOC|seealso=yes|refs=yes|side=yes|nobreak=yes|top=yes|center=yes}}
{{Inventions}}

{{DEFAULTSORT:Inventors}}
[[Category:Inventors|*]]
[[Category:Lists of inventors| ]]

[[sv:Alfabetisk lista över svenska uppfinnare och vetenskapsmän]]