Editing List of inventors (section)

===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