In bold, the official abbreviations
- La Billardière, JJH (Labill.) Jacques-Julien Houtou de La Billardière (1755–1834)
- La Condamine, CM Charles Marie de La Condamine (1701–1774)
- la Croix, IF Isobyl Florence la Croix (1933– )
- La Marca, E Enrique La Marca
- La Rocca, S (La Rocca) Salvatore La Rocca
- La Salle, J (La Salle) John La Salle
- La Scola, B Bernard La Scola
- La Touche, JD John David Digues La Touche (1861–1935)
- Laasonen, EM (E.M. laasonen) Erkki M. Laasonen
- Laasonen, L (L. Laasonen) Leena Laasonen
- Labarque, FM Facundo M. Labarque
- Labbé, A Alphonse Labbé (1869–1938)
- Labeda, DP David P. Labeda
- LaBerge, WE Wallace Edmund LaBerge (1927–2013)
- Labiak, PH (Labiak) Paulo Henrique Labiak (fl. 2000)
- Labougle, JM Juan Manuel Labougle
- Laboulbène, JA Joseph Alexandre Laboulbène (1825–1898)
- Labram, JD Jonas David Labram (1785–1852)
- Lacaita, CC (Lacaita) Charles Carmichael Lacaita (1853–1933)
- Lacasa-Ruiz, A Antoni Lacasa-Ruiz
- Lacaze-Duthiers, H Lacaze-Duthiers (1821–1901)
- Lace, JH (Lace) John Henry Lace (1857–1918)
- Lacépède, BGEV Bernard Germain Étienne de la Ville, Comte de Lacépède (1756–1825)
- Lacerda, KG (K.G.Lacerda) Kleber Garcia de Lacerda
- Lacerda, MTC Marco Túlio C. Lacerda
- Lachaume, G Gilbert Lachaume
- Lachlan, RB (Lachlan) Robert B. Lachlan
- Lachner-Sandoval, V Vicente Lachner-Sandoval
- Lack, HW (Lack) Hans Walter Lack (1949– )
- Lackey, JA (J.A.Lackey) James A. Lackey
- Lackner, T Tomas Lackner
- Lackschewitz, P (Laksch.) Paul Lackschewitz (1865–1936)
- Lacomme, D (Lacomme) Daniel Lacomme
- Lacordaire, JT Jean Théodore Lacordaire (1801–1870)
- Lacroix JP Jean-Pierre Lacroix (1938–1989)
- Lacroix, JL Joseph L. Lacroix (1879–1939)
- Lacroix, M Marc Lacroix
- Ladd, DM Douglas M. Ladd
- Ladd, HS Harry Stephen Ladd (1899–1982)
- Ladero, M Miguel Ladero (1939– )
- Ladiges, P (Ladiges) Pauline Ladiges (1948– )
- Ladiges, W Werner Ladiges (1910–1984)
- Ladizinsky, G (Ladiz.) Gideon Ladizinsky (1936– )
- Læstadius, LL (Laest.) Lars Levi Læstadius
- Laever, de E (de Laever) Edmond de Laever
- Lafer, GS German Shlemovich Lafer (1936– )
- Laferrière, JE (Laferr.) Joseph Edward Laferrière
- Lafontaine, JD (J.D. Lafontaine) J. Donald Lafontaine
- Lafontaine, R-M René-Marie Lafontaine
- Lafrentz, K Karl Lafrentz
- Lafresnaye, F Frédéric de Lafresnaye (1783–1861)
- Lagasca y Segura, M (Lag.) Mariano Lagasca y Segura (1776–1839)
- Lagerheim, NG (Lagerh.) Nils Gustaf Lagerheim (1860–1926)
- Lagger, FJ (Lagger) Franz Joseph Lagger (1802–1870)
- Lago, E (Lago) Elena Lago (1952– )
- LaGreca, S (LaGreca) Scott LaGreca
- Lagrèze-Fossat, ARA (Lagr.-Foss.) Adrian Rose Arnaud Lagrèze-Fossat (1818–1874)
- Laguerre, M (Laguerre) Michel Laguerre
- Laguna, BM (Laguna) Benjamín Máximo Laguna (1822–1902)
- Laguna Lumbreras, E (E.Laguna) Emilio Laguna Lumbreras (1961– )
- Lahanas, PN Peter N. Lahanas
- Laharpe, JJC (Laharpe) Jean Jacques Charles de Laharpe (1802–1877)
- Lahille, F Fernando Lahille (1861–1940)
- Lahm, JGF (J.Lahm) Johann Gottlieb Franz-Xaver Lahm (1811–1888)
- Lai, FC Fang-Cheng Lai
- Lai, M-J (M.J.Lai) Ming-Jou Lai (1949– )
- Laibach, F (Laib.) Friedrich Laibach (1885–1967)
- Laicharting, JN Johann Nepomuk von Laicharting (1754–1797)
- Laidlaw, HH Harry Hyde Laidlaw, Jr. (1907–2003)
- Laing, RM (Laing) Robert Malcolm Laing (1865–1941)
- Laínz, JM (Laínz) José María Laínz Ribalaygua (1900–1977)
- Laínz, M (M.Laínz) Manuel Laínz (1923– )
- Laivao, MO (Laivao) Michel O. Laivao
- Lajonquière, de Y (de Lajonquière) Yves de Lajonquière
- Lakela, OK (Lakela) Olga Korhoven Lakela (1890–1980)
- Lakshminarasimhan, P P. Lakshminarasimhan
- Lalana, R Rogelio Lalana
- Lalanne-Cassou, B (Lalanne-Cassou) Bernard Lalanne-Cassou
- Lallemand, V Victor Lallemand (1880–1965)
- Lally, TR (Lally) Terena R. Lally (fl. 2008)
- Lam, HJ (H.J.Lam) Herman Johannes Lam (1892–1977)
- Lamar, WW William W. Lamar
- Lamarck, JB (Lam.) Jean-Baptiste Lamarck (1744–1829)
- Lamas, CJE (C.J.E.Lamas) Carlos José Einicker Lamas
- Lamas, G Gerardo Lamas (Müller)
- Lamb, AL (A.Lamb) Anthony L. Lamb (1937–2024)
- Lamb, IM (I.M.Lamb) Ivan Mackenzie Lamb (1911–1990]]
- Lamb, JP James P. Lamb
- Lambe, LM (Lambe) Lawrence Morris Lambe (1849–1934)
- Lambert, AB (Lamb.) Aylmer Bourke Lambert (1761–1842)
- Lambert, FR Frank R. Lambert
- Lambert, JG J. G. Lambert
- Lambillion, LJL Lambert-Joseph-Louis Lambillion (1853–1922)
- Lambinon, JEJ (Lambinon) Jacques Ernest Joseph Lambinon (1936– )
- Lambkin, CL Christine Lynette Lambkin (1954– )
- Lambley, P (Lambley) Peter Lambley
- Lamboj, A Anton Lamboj
- Lamborot, L Lilianne Lamborot
- Lambotte, JBE (Lambotte) Jean Baptiste Émil Lambotte (1832–1905)
- Lambrecht, K Kálmán Lambrecht (1889–1936)
- Lameere, A Auguste Lameere (1864–1942)
- Lamkey, EMR (Lamkey) Ernest Michael Rudolph Lamkey (1890– )
- Lammers, TG Thomas G. Lammers
- Lamont, EE (E.E.Lamont) Eric E. Lamont
- LaMonte, F Francesca LaMonte (1895–1982)
- Lamothe-Argumedo, MF Marcos Rafael Lamothe-Argumedo (1932–2013)
- Lamotte, M (Lamotte) Martial Lamotte (1820–1883)
- Lamotte, M Maxime Lamotte (1920–2007)
- LaMotte, RS (R.S.LaMotte) Robert Smith LaMotte (1895–1983)
- Lamouroux, JVF Jean Vincent Félix Lamouroux (1779 — 1825)
- Lampe, E Eduard Lampe
- Lampe, REJ (Lampe) Rudolf E.J. Lampe
- Lamson-Scribner, F Frank Lamson-Scribner (1851–1938)
- Lamy de la Chapelle, PME (Lamy) Pierre Marie Edouard Lamy de la Chapelle (1804–1886)
- Lan, JH Jia-Hu Lan
- Lancaster, CR Charles Roy Lancaster (1937– )
- Lancraft, TM Tom M. Lancraft
- Landbeck, CL Christian Ludwig Landbeck (1807–1890)
- Lander, NS (Lander) Nicholas Sean Lander (1948– )
- Landin, B-O Bengt-Olof Landin (1925–2006)
- Landing, E Ed Landing
- Landolt, E (Landolt) Elias Landolt (1926– )
- Landon, JW (J.W.Landon) John Waddell Landon (1949– )
- Landon, KC (K.C.Landon) Kenneth C. Landon (fl. 1978)
- Landrón, CI (Landrón) C.I. Landrón
- Landrum, LR (Landrum) Leslie Roger Landrum (1946– )
- Landry, B (B.Landry) Bernard Landry
- Landry, GP (G.P.Landry) Garrie Paul Landry (1951– )
- Landry, JF (Landry) Jean-François Landry
- Landström, T (Landström) Thomas Landström (fl. 1991)
- Landwehr, J Jacobus Landwehr
- Lane, CE Christopher E. Lane
- Lane, D (D. Lane) David Lane
- Lane, DA (D.A. Lane) David A. Lane
- Lane, DF Daniel F. Lane
- Lane, F Frederico Lane
- Lane, J John Lane
- Lane, MA (M.A.Lane) Meredith A. Lane (1951– )
- Lane, PD Philip D. Lane
- Lanéelle, G Gilbert Lanéelle
- Lanessan, JMA (Laness.) Jean Marie Antoine de Lanessan (1843–1919)
- Lanfranco, E (Lanfr.) Edwin Lanfranco (1946– )
- Lang, KGH Karl Georg Herman Lang (1901–1976)
- Lång, KGW (K.G.W. Lång) K. Gösta W. Lång (1875–1912)
- Lang, KY (K.Y.Lang ) Kai Yung Lang (1937– )
- Lang, O (O.Lang) Otto Friedrich Lang (1817–1847)
- Lang, PJ (P.J.Lang) Peter J. Lang (1955– )
- Lang, SY (S.Y. Lang) Song-Yun Lang
- Lange, AE (A.E.Lange) Axel Edward Lange (1871–1941)
- Lange, JE (J.E. Lange) Jakob Emanuel Lange (1864–1941)
- Lange, JMC (Lange) Johan Martin Christian Lange (1818–1898)
- Lange, M (M. Lange) Morten Lange (1919– )
- Lange, OL (O.L.Lange)Otto Ludwig Lange (1927– )
- Lange, PJ (de Lange) Peter James de Lange (1966– )
- Lange, WH (W.H. Lange) William Harry Lange (1912–2004)
- Langeani, F (Langeani) Francisco Langeani
- Langebartel, DA David A. Langebartel
- Langenheim, JH (Langenh.) Jean Harmon Langenheim (1925– )
- Langenheim, RL Ralph Louis Langenheim (1922–2019)
- Langer, MC Max Cardoso Langer
- Langhe, JE Joseph Edgard De Langhe (1907– )
- Langone, JA José Antonio Langone (1961– )
- Langor, D David Langor
- Langrand, O Olivier Langrand
- Langsdorff, GH (Langsd.) Georg Heinrich von Langsdorff (1774–1852)
- Langston, W Wann Langston, Jr. (1921– )
- Lanjouw, J (Lanj.) Joseph Lanjouw (1902–1984)
- Lankester, ER Edwin Ray Lankester (1847–1929)
- Lanterbecq, D Déborah Lanterbecq
- Lanteri, A Analia Lanteri
- Lantz, AL Louis Amédée Lantz (1886–1953)
- Lanyon, SM Scott M. Lanyon
- Lanyon, WE Wesley E. Lanyon
- Lanza, B Benedetto Lanza
- Lanza, D (Lanza) Domenico Lanza (1868–1940)
- Lapeyrouse, P (Lapeyr.) Philippe-Isidore Picot de Lapeyrouse (1744–1818)
- Lapierre, JM (Lapierre) Jean Marie Lapierre (1754–1834)
- Lapointe, FJ François-Joseph Lapointe
- LaPolla, JS John S. LaPolla
- Laporte, FLNC François Louis Nompar de Caumont de Laporte (1802–1880)
- Lapouge, GV Georges Vacher de Lapouge (1854–1936)
- Lapp, M (Lapp) Marlene Lapp (1970– )
- Lapparent de Broin, F France de Lapparent de Broin
- Laprida, C Cecilia Laprida
- Lapworth, C Charles Lapworth (1842–1920)
- Lara, CE Carlos Esteban Lara
- Lara, F (F.Lara) Francisco Lara (1963– )
- Larbalestier, CduB (Larbal.) Charles du Bois Larbalestier (1838–1911)
- Large, MF (Large) Mark F. Large (1959– )
- Largen, MJ Malcolm John Largen (1941–2017)
- Largent, DL David Lee Largent (1937– )
- Larivière, MC Marie-Claude Larivière
- Larochelle, A André Larochelle
- Larrañaga, DA (Larrañaga) Dámaso Antonio Larrañaga (1771–1848) Larrañaga
- Larreategui, JD (Larreat.) Joseph Dionisio Larreategui (fl. 1795–c.1805)
- Larsen, K (K.Larsen) Kai Larsen (1926– )
- Larsen, K (Kn. Larsen) Knud Larsen
- Larsen, KR Kim Richard Larsen (1965– )
- Larsen, SS (S.S.Larsen) Supee Saksuwan Larsen (1939– )
- Larsen, TB (T.B. Larsen) Torben B. Larsen
- Larson, HK Helen K. Larson
- Larsson, HCE Hans C.E. Larsson
- Larsson, K Karolina Larsson
- Larsson, K-H (K.H.Larss.) Karl-Henrik Larsson (1948– )
- Larysz, A (Larysz) Adam Larysz
- Lasch, WG (Lasch) Wilhelm Gottlob Lasch (1787–1863)
- Laspeyres, JH Jakob Heinrich Laspeyres
- Lassen, P (Lassen) Per Lassen (1942– )
- Last, HR Horace Rupert Last (1908–1995)
- Last, PR (P.R. Last) Peter R. Last
- Laštůvka, A Aleš Laštůvka
- Laštůvka, Z Zdeněk Laštůvka
- Laszlo, GM Gyula M. Laszlo
- Lata, K Kanchan Lata
- Lataste, F Fernand Lataste (1847–1934)
- Laterrade, JF (Laterr.) Jean François Laterrade (1784–1858)
- Latham, J John Latham (1740–1837)
- Lathrop, A Amy Lathrop
- Lathy, PI Percy I. Lathy (1870–1943)
- Latour-Marliac, JB (Lat.-Marl.) Joseph Bory Latour-Marliac (1830–1911)
- Latourrette, MALC (Latourr.) Marc Antoine Louis Claret de Latourrette (1729–1793)
- Latreille, PA Pierre André Latreille (1762–1833)
- Lattes, A Aldo Lattes
- Lattin, JD John D. Lattin
- Lattke, JE John Edwin Lattke
- Lau, AB (A.B.Lau) Alfred Bernhard Lau (1928–2007)
- Lau, CJ Clara Jesse Lau
- Lau, MWN Michael Wai-Neng Lau
- Laubitz, DR Diana R. Laubitz
- Laubmann, A Alfred Laubmann (1886–1965)
- Lauche, W Wilhelm Lauche (1827–1883)
- Lauener, LA (Lauener) Lucien André Lauener (1918–1991)
- Laufe, LE Leonard E. Laufe
- Laughlin, K (Laughlin) Kendall Laughlin (1890– )
- Laundon, JR (J.R. Laundon) Jack Rodney Laundon (1934– )
- Launert, GOE (Launert) Georg Oskar Edmund Launert (1926– )
- Laurencich, LA Laura Anna Laurencich
- Laurent, RF Raymond Ferdinand Laurent (1917– )
- Laurenti, JN Josephus Nicolaus Laurenti (1735–1805)
- Laurer, JF (Laurer) Johann Friedrich Laurer (1798–1873)
- Laurie, EMO Eleanor M.O. Laurie
- Laurila, M (Laurila) Matti Laurila (1915–1942)
- Laurillard, CL Charles Léopold Laurillard (1783–1853)
- Lauterbach, CAG (Lauterb.) Carl Adolf Georg Lauterbach (1864–1937)
- Lauterbach, K-E Karl-Ernst Lauterbach
- Lautner, J (Lautner) Jürgen Lautner
- Lauzanne, L Laurent Lauzanne
- LaVal, RK Richard K. LaVal
- Lavallée, PAM (Lavallée) Pierre Alphonse Martin Lavallée (1836–1884)
- Laverde-R., O Oscar Laverde-R.
- Lavilla, EO Esteban Orlando Lavilla
- Lavin, M (Lavin) Matt Lavin (1956– )
- Lavinia, PD Pablo D. Lavinia
- Lavis, MG (Lavis) Mary Gwendolene Lavis (1902– )
- Lavocat, R René Lavocat
- Lavranos, JJ (Lavranos) John Jacob Lavranos (1926– )
- Lavrenchenko, LA Leonid A. Lavrenchenko
- Lavrenko, EM (Lavrenko) Eugeny Mikhailovič Lavrenko (1900–1987)
- Lavrov, NN (Lavrov) Nikolai Nicolaevich Lavrov (1889—1960)
- Law, YW (Y.W.Law) Yuh Wu Law (1917–2004)
- Lawalrée, AGC (Lawalrée) André Gilles Célestin Lawalrée (1921–2005)
- Lawesson, JE (Lawesson) Jonas Erik Lawesson (1959–2003)
- Lawless, N Naomi Lawless
- Lawrence, B Barbara Lawrence (1909–1997)
- Lawrence, GHM (G.H.M.Lawr.) George Hill Mathewson Lawrence (1910–1978)
- Lawrence, GN George Newbold Lawrence (1806–1855)
- Lawrence, JF John Francis Lawrence (1934–)
- Lawrence, ME (M.E.Lawr.) Margaret Elizabeth Lawrence (1953– )
- Lawrence, RF Reginald Frederick Lawrence (1897–1987)
- Lawrence Schevill, B Barbara Lawrence (1909–1997)
- Lawrey, JD James Donald Lawrey
- Lawson, C (C.Lawson) Charles Lawson (1794–1873)
- Lawson, CA (C.A.Lawson) Cheryl A. Lawson
- Lawson, G (G.Lawson) George Lawson (1827–1895)
- Lawson, MA (M.A.Lawson) Marmaduke Alexander Lawson (1840–1896)
- Lawson, PA Paul Alan Lawson
- Lawton, E (E.Lawton) Elva Lawton (1896–1993)
- Laxmann, EG Erich Gustav Laxmann (1737–1796)
- Lay, E (E.Lay) Elisabeth Lay
- Lay, GL George Tradescant Lay (1799–1854)
- Layard, EL Edgar Leopold Layard (1824–1900)
- Layard, ELC Edgar Leopold Calthrop Layard (1848–?)
- Layens, G (Layens) Georges de Layens (1834–1897)
- Lazara, KJ Kenneth J. Lazara
- Lazare, JJ (Lazare) Jean-Jacques Lazare (fl. 2010)
- Lazarenko, AS (Laz.) Andrei Sazontovich Lazarenko (1901–1979)
- Lazarenko, NP Nadezhda Prokofievna Lazarenko (1925–2018)
- Lazarides, M Michael Lazarides (1928– )
- Lazcano, D David Lazcano
- Lazell, JD James D. Lazell, Jr.
- Lazzarotto, H Henrique Lazzarotto
- Le, DD Doan Dung Le
- Le, MD Minh Duc Le
- Le, TT Trai Trong Le
- Le Bail, PY Pierre-Yves Le Bail
- Le Cerf, F Ferdinand Le Cerf (1881–1945)
- Le Conte, JE John Eatton Le Conte (1784–1860)
- Le Crom, J (Le Crom) Jean Le Crom
- Le Gal, MLF (Le Gal) Marcelle Louise Fernande Le Gal (1895–1979)
- Le Goff, G Gilbert Le Goff
- Le Guillou, EJF Élie Jean François Le Guillou (1806–1860)
- Le Houérou, HN (Le Houér.) Henri-Noël Le Houérou (1928–2009)
- Le Loeuff, P Pierre Le Loeuff (1938– )
- Le Maout, JEM Jean Emmanuel Maurice Le Maout (1799–1877)
- Le Marchand, S Simon Le Marchand (1882–1953)
- Le Moult, E Eugène Le Moult (1882–1965)
- Le Prévost, A (Le Prévost) Auguste Le Prévost (1787–1860)
- Le Renard, J (Le Renard) Jacques Le Renard (1946–)
- Le Souef, AS Albert Sherbourne Le Souef (1869–1937)
- Lea, AM Arthur Mills Lea (1868–1932)
- Lea, I Isaac Lea (1792–1886)
- Leach, CM (C.M. Leach) C.M. Leach
- Leach, GJ (G.J.Leach) Gregory John Leach (1952– )
- Leach, LC (L.C.Leach) Leslie Charles Leach (1909–1996)
- Leach, WE William Elford Leach (1790–1836)
- Leaché, A Adam D. Leaché
- Leadbeater, B Benjamin Leadbeater (1760–1837)
- Leader, JP John P. Leader
- Leader, PJ Paul J. Leader
- Leakey, M Meave Leakey (1942– )
- Leal, JH José H. Leal
- Leal, ME (M.E.Leal) Miguel E. Leal
- Leal-Zanchet, AM Ana Maria Leal-Zanchet
- Leandri, JD (Leandri) Jacques Désiré Leandri (1903–1982)
- Leanza, HA Hector A. Leanza
- Lear, E Edward Lear (1812–1888)
- Leavenworth, MC (Leavenw.) Melines Conklin Leavenworth (1796–1862)
- Leavitt, SD (S.D.Leav.) Steven Don Leavitt
- Lebatha, PD (Lebatha) Pearl D. Lebatha (fl. 2008)
- Lebel, T (T.Lebel) Teresa Lebel
- Lebert, H Hermann Lebert (1813–1878)
- Lebis, É Émile Lebis (1879–1963)
- Leblebici, E (Leblebici) Erkuter Leblebici (1939– )
- LeBreton, M Matthew LeBreton
- Lebron-Luteyn, ML (Lebron-Luteyn) María L. Lebron-Luteyn (1947– )
- Lebrun, JA (Lebrun) Jean-Paul Antoine Lebrun (1906–1985)
- Lebrun, JP (J.-P.Lebrun) Jean-Pierre Lebrun (1932– )
- Lecchini, D David Lecchini
- Lechevalier, HA Hubert A. Lechevalier
- Lechevalier, MP Mary P. Lechevalier
- Lechler, W (Lechl.) Wilibald Lechler (1814–1856)
- Lechner, AA van Pelt (Lechner) A.A. van Pelt Lechner
- Lechner, BE (B.E.Lechner) Bernardo Ernesto Lechner (1969– )
- Lechner, P (P.Lechner) Peter Lechner
- LeClair, PM (P.M. LeClair) Patricia M. LeClair
- Leclerc, H Henri Leclerc
- Leclerc, L (L.Leclerc) Léon Leclerc (1781–?)
- Leclerc, P Philippe Leclerc
- Lecompte, M Marius Lecompte (1902–1970)
- Lecomte, P (Lecomte) Paul Henri Lecomte (1856–1934)
- LeConte, JL John Lawrence LeConte (1825–1883)
- Lecoq, H (Lecoq) Henri Lecoq (1802–1871)
- Lecoq, J-C Jean-Claude Lecoq (1937– )
- LeCroy, M Mary LeCroy
- LeCroy, SE Sara E. LeCroy
- Ledebour, CF (Ledeb.) Carl Friedrich von Ledebour (1786–1851)
- Lederer, J Julius Lederer (1821–1870)
- Lederer, M (Leder.) Michael Lederer (1853–1922)
- Ledoux, J-C Jean-Claude Ledoux
- Ledoyer, M Michel Ledoyer (1937– )
- Leduc, D Daniel Leduc
- Lee, AK Anthony K. Lee
- Lee, AT (A.T.Lee) Alma Theodora Lee (1912–1990)
- Lee, BH Byung-Hoon Lee
- Lee, BW (B.W. Lee) Bong-Woo Lee
- Lee, CC (Chi.C.Lee) Ch'ien C. Lee
- Lee, CE (C.E. Lee) Chang Eon Lee
- Lee, CF (C.F. Lee) Chi-Feng Lee
- Lee, CL (C.L. Lee) Chuan-Lung Lee
- Lee, DC David C. Lee
- Lee, DE Daphne E. Lee
- Lee, GWX Geraldine W.X. Lee
- Lee, HR Hue-Ru Lee
- Lee, HS Hee-Soon Lee
- Lee, J Jimin Lee
- Lee, JE Jong Eun Lee
- Lee, JGH Jessica G.H. Lee
- Lee, JH Joon-Ho Lee
- Lee, JJ (J.J.Lee) John Joseph Lee (1933–)
- Lee, JJ (J.J.Lee) Jonathan J. Lee
- Lee, KE Kenneth Ernest Lee (1927–2007)
- Lee, KS (K.S.Lee) Kyung Seo Lee
- Lee, LL Ling-Ling Lee
- Lee, MR M. Raymond Lee
- Lee, SK (S.K.Lee) Shu Kang Lee (1915– )
- Lee, SM (S.M. Lee}} Sangmi Lee
- Lee, SS Soo Seong Lee
- Lee, T Taekjun Lee
- Lee, TB (T.B.Lee) Tchang Bok Lee
- Lee, TJ Taek Jun Lee (1928–2001)
- Lee, W (W.Lee) Wootchul Lee (fl. 1995)
- Lee, W Wonchoel Lee
- Lee, YJ (Y.J. Lee) Young June Lee
- Lee, YN (Y.N.Lee) Yong No Lee (1920– )
- Lee, YT (Y.T.Lee) Yin Tse Lee
- Leech, JH John Henry Leech (1862–1900)
- Leechmann, A Alleyhe Leechmann
- Leeke, GGP (Leeke) Georg Gustav Paul Leeke (1883–1933)
- Leenhouts, PW (Leenh.) Pieter Willem Leenhouts (1926–2004)
- Leeper, JR John R. Leeper
- Leers, JGD (Leers) Johann Georg Daniel Leers (1727–1774)
- Lees, AC Alexander C. Lees
- Lees, DC (D.C. Lees) David C. Lees
- Lees, E (Lees) Edwin Lees (1800–1887)
- Leeson, HS Herbert Sefton Leeson (1893– )
- Leestmans, R (Leestmans) Ronny Leestmans
- Leeuwenberg, AJM (Leeuwenb.) Anthonius Josephus Maria Leeuwenberg (1930– )
- Lefevre, E Édouard Lefèvre (1839–1894)
- Lefevre, LV Louis Victor Lefèvre (1810– )
- Legeza, MI (Legeza) Marina Iosifovna Legeza (1925–?)
- Legge, WV William Vincent Legge (1841–1918)
- Legrain, A (Legrain) Albert Legrain
- Legrand, A (Legrand) Antoine Legrand (1839–1905)
- Legrand, C (D.Legrand) Carlos Maria Diego Enrique Legrand (1901–1986)
- Legrand, JP Jean-Philippe Legrand
- Leguin, E-A Elise-Anne Leguin
- Lehmann, CB (C.B.Lehm.) Carl Bernhard Lehmann (1811–1875)
- Lehmann, EBJ (E.B.J.Lehm.) Ernst B. Johann Lehmann (1880–1957)
- Lehmann, FC (F.Lehm.) Friedrich Carl Lehmann (1850–1903)
- Lehmann, I (I. Lehmann) Ingo Lehmann (1964– )
- Lehmann, JF (J.F.Lehm.) Johann Friedrich Lehmann (1781–1831)
- Lehmann, JGC (Lehm.) Johann Georg Christian Lehmann (1792–1860)
- Lehmann, KB Karl Bernhard Lehmann (1858–1940)
- Lehmann, L (L. Lehmann) Lutz Lehmann
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- Lutz, H Herbert Lutz
- Lutz, M (M.Lutz) Matthias Lutz
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- Alexei Ivanovich Lyashenko
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- Lyell, C Charles Lyell (1767–1849)
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- Lynch, RI (Lynch) Richard Irwin Lynch (1850–1924)
- Lynch Arribálzaga, E Enrique Lynch Arribálzaga (1856–1935)
- Lynch Arribálzaga, F Félix Lynch Arribálzaga
- Lynes, H Hubert Lynes {1874–1942)
- Lyngbye, HC (Lyngb.) Hansen Christian Lyngbye (1782–1837)
- Lynge, BA (Lynge) Bernt Arne Lynge (1884–1942)
- Lynn, WG W. Gardner Lynn
- Lyon, HL Harold Lloyd Lyon
- Lyon, MW Marcus Ward Lyon (1875–1942)
- Lyons, AB (A.Lyons) Albert Brown Lyons (1841–1926)
- Lyubarsky, GY Georgy Yuryevich Lyubarsky
