Alan G. MacDiarmid (1926-2007) New Zealand chemist, winner of 2000 Nobel Prize in Chemistry
Roderick MacKinnon (1956- ) American biochemist, 2003 Nobel Prize in Chemistry
Andreas Sigismund Marggraf (1709-1782), German chemist
Rudolph A. Marcus (1923- ) Canadian-American chemist, winner of 1992 Nobel Prize in Chemistry
Jean-Charles-Galinard de Marignac Swiss chemist (1817-1894)
Vladimir Vasilevich Markovnikov, (1838–1904)
Archer John Porter Martin (1910-2002) English biochemist, winner 1952 Nobel Prize in Chemistry
Elmer Verner McCollum (1879-1967), American biochemist, established the letter designation system for vitamins
Ray McIntire (1911-1996) American chemical engineer, inventor of Styrofoam
Lise Meitner, (1878–1968), physicist who studied radioactivity, part of the team that discovered fission
Lafayette Benedict Mendel (1872-1935) American biochemist
Dmitri Ivanovich Mendeleev, (1834–1907), chemist, creator of the Periodic Table of Elements
John Mercer, (1791–1866), chemist and industrialist
Robert Bruce Merrifield (1921-2006) American chemist, winner of 1984 Nobel Prize in Chemistry.
Viktor Meyer (1848-1897), German chemist
Otto Meyerhof (1884-1951) German biochemist, winner of 1922 Nobel Prize in Medicine
Hartmut Michel (1948- ) German biochemist, winner of 1988 Nobel Prize in Chemistry
Thomas Midgley, Jr. (1889-1944) American chemical engineer, inventer of TEL (tetraethyllead) and Freon
Johann Friedrich Miescher (1844-1895) Swiss biochemist
Stanley Miller (1930-2007), American biochemist, best known for the Miller-Urey experiment
César Milstein (1927-2002) Argentine biochemist, winner of 1984 Nobel Prize in Medicine
Luis E. Miramontes (1925–2004), co-inventor of the contraceptive pill
Peter Dennis Mitchell (1920-1992) British biochemist, winner of 1978 Nobel Prize in Chemistry.
William A. Mitchell, (1911–2004), inventor who worked on Pop Rocks, Tang, and Kool Whip
Alexander Mitscherlic, (1836–1918), chemist
Eilhardt Mitscherlich (1794-1863) German chemist
Henri Moissan (1852-1907) French chemist, winner of 1906 Nobel Prize in Chemistry
Mario Molina (1943- ) Mexican-American chemist, winner of 1995 Nobel Prize in Chemistry
Jacques Monod, (1910–1976), biochemist, 1965 Nobel Prize in Physiology or Medicine
Peter Moore (born 1939), American biochemist
Stanford Moore (1913-1982) American biochemist, winner of 1972 Nobel Prize in Chemistry
Carl Gustaf Mosander (1797-1858), Swedish chemist
Henry Gwyn Jeffreys Moseley (1887-1915), English physicist, discovered Moseley's law
Robert S. Mulliken, (1896–1986), American physicist, chemist
Kary Mullis (1944- ), American biochemist, winner of 1993 Nobel Prize in Chemistry
