Biyologlar listesi
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Johann Georg Christian Lehmann (25 Şubat 1792 - 12 Şubat 1860) bir Alman botanikçi
Henri Laborit (1914–1995), Fransız surgeon and physiologist
Bernard Germain Étienne de la Ville, Comte de Lacépède (1756–1825), Fransız doğabilimci
David Lack (1910–1973), Britanyalı ornitolog
Frédéric de Lafresnaye (1783–1861), Fransız ornitolog
Jean-Baptiste Lamarck (1744–1829), Fransız evolutionist, coined many terms like biology and fossils
Aylmer Bourke Lambert (1761–1842), Britanyalı botanikçi
Charles Lamberton (fl. 1912–1956), Fransız paleontologist
Hugh Lamprey (1928–1996), Britanyalı ecologist
Kai Larsen (1926–2012), Danimarkalı botanikçi
Charles Francis Laseron (1887–1959), Amerikalı-born Australian doğabilimci and malacologist
John Latham (1740–1837), İngiliz doğa bilimci
Pierre André Latreille (1762–1833), Fransız entomolog
Charles Louis Alphonse Laveran (1845–1922), Fransız physician, winner of the 1907 Nobel Prize in Physiology or Medicine for his discovery that the cause of malaria is a protozoon
George Newbold Lawrence (1806–1855), Amerikalı ornitolog
William Elford Leach (1790–1836), İngiliz zoolog and marine biyolog
Colin Leakey (d. 1933), Britanyalı tropical botanikçi and specialist in bean science
Joseph LeConte (1823–1901), physiologist
Tim Lee (d. 1977), comedian
Antoni van Leeuwenhoek (1632–1723), Hollandalı biyolog, developer of the microscope
François Leguat (c. 1637 – 1735), Fransız doğabilimci
Joseph Leidy (1823–1891), Amerikalı paleontologist
Johann Philipp Achilles Leisler (1771–1813), Hollandalı doğabilimci
Juan Lembeye (1816–1889), Spanish doğabilimci
Leonardo da Vinci (1452–1519), known as an artist but also an anatomist. Dissected hundreds of specimens and drew exact copies of them
Jean Baptiste Leschenault de la Tour (1773–1826), Fransız botanikçi
Rene Primevere Lesson (1794–1849), Fransız doğabilimci
Charles Alexandre Lesueur (1778–1846), Fransız doğabilimci
François Le Vaillant (1753–1824), Fransız ornitolog
Edward B. Lewis (1918–2004), Amerikalı geneticist and 1995 Nobel Prize-winner
Richard Lewontin (d. 1929), biyolog
Wen-Hsiung Li, molecular evolutionary biyolog
Emmanuel Liais (1826–1900), Fransız botanikçi
Martin Lichtenstein (1780–1867), Alman zoolog
John Lightfoot (1735–1788), İngiliz conchologist and botanikçi
David R. Lindberg, Amerikalı malacologist and biyolog
Aristid Lindenmayer (1925–1989), Hungarian biyolog
John Lindley (1799–1865), İngiliz botanikçi
Heinrich Friedrich Link (1767–1850), Alman botanikçi (abbr. in botany: Link)
Carl Linnaeus (1707–1778), Swedish botanikçi; father of the binomial nomenclature system (abbr L. or Linn.)
Jacques Loeb (1859–1924), Alman-Amerikalı biyolog
Friedrich Loeffler (1852–1915), Alman biyolog
Konrad Lorenz (1903–1989), Austrian founder of ethology
Harri Lorenzi (d. 1949), Brezilyalı botanikçi
John Claudius Loudon (1783–1843), İngiliz botanikçi
James Lovelock (d. 1919), İngiliz chemist and father of the Gaia hypothesis
Percy Lowe (1870–1948), İngiliz ornitolog
Peter Wilhelm Lund (1801–1880), Danimarkalı zoolog and paleontologist
Salvador Luria (1912–1991), microbiyolog, Nobel prize winner
Adolfo Lutz (1855–1940), Brezilyalı infectologist, pathologist and public health researcher
André Lwoff (1902–1994), Fransız microbiyolog, winner of the 1965 Nobel Prize in Physiology or Medicine
Richard Lydekker (1849–1915), İngiliz doğa bilimci
Trofim Lysenko (1898–1976), Soviet biyolog and agronomist. His denouncement of genetics became known as Lysenkoism.