Wikipedia:WikiProject Mathematics/List of mathematicians (L)

L

 * L'Abbé, Maurice (Canada, 1920–2006)
 * L'Huilier, Simon Antoine Jean (Switzerland, 1750–1840)
 * de La Chapelle, Jean-Baptiste (France, ?–?)
 * de La Condamine, Charles Marie (France, 1701–1774)
 * de La Hire, Philippe (France, 1640–1719)
 * de La Roche, Estienne (France, 1470–1530)
 * Łaba, Izabella (Canada/Poland, born 1966)
 * Labelye, Charles (Switzerland, 1705–1781)
 * Labeo, Notker (?, 950–1022)
 * Labourie, François (France, born 1960)
 * Lacampagne, Carole (?, ?–?)
 * Lacey, Michael (USA, born 1959)
 * Lackenby, Marc (England, ?–?)
 * Lacombe, Marius (Switzerland, 1862–1938)
 * Lacroix, Sylvestre François (France, 1765–1843)
 * Laczkovich, Miklós (Hungary, born 1948)
 * Ladd-Franklin, Christine (USA, 1847–1930)
 * LaDuke, Jeanne (USA, born 1938)
 * Ladyzhenskaya, Olga (Russia/Soviet Union, 1922–2004)
 * Laffey, Thomas J. (Ireland, born 1943)
 * Lafforgue, Laurent (France, born 1966)
 * Lafforgue, Vincent (France, born 1974)
 * Lagarias, Jeffrey (?, born 1949)
 * Lagerstrom, Paco (Sweden, 1914–1989)
 * de Lagny, Thomas Fantet (France, 1660–1734)
 * Lagrange, Joseph-Louis (?, 1736–1813)
 * Laguerre, Edmond (France, 1834–1886)
 * Lah, Ivo (Slovenia, 1896–1979)
 * Laha, Radha (India, 1930–1999)
 * Lai, Ming-Jun (USA, ?–?)
 * Lai, Xuejia (?, ?–?)
 * Lai, Ying-Cheng (?, ?–?)
 * Laird, Nan (USA, born 1943)
 * Laisant, Charles-Ange (France, 1841–1920)

Lak

 * Lakatos, Imre (Hungary, 1922–1974)
 * Lakshmibai, V. (India, ?–?)
 * Laksov, Dan (Norway/Sweden, 1940–2013)
 * Lalescu, Traian (Romania, 1882–1929)
 * Lalla (Medieval India, 720–790)
 * de Laloubère, Antoine (France, 1600–1664)
 * Lam, Clement W. H. (Canada, ?–?)
 * Lam, Tsit Yuen (China, born 1942)
 * Laman, Gerard (Netherlands, 1924–2009)
 * Lamb, Horace (Britain, 1849–1934)
 * Lamb, John (?, 1789–1850)
 * Lambek, Joachim (Canada, 1922–2014)
 * Lambert of Auxerre (?, ?–?)
 * Lambert, Johann Heinrich (Switzerland, 1728–1777)
 * Lamé, Gabriel (France, 1795–1870)
 * Lamport, Leslie (USA, born 1941)
 * Lamy, Bernard (France, 1640–1715)
 * Lancaster, Henry Oliver (Australia, 1913–2001)
 * Lanczos, Cornelius (Ireland, 1893–1974)
 * Land, Ailsa (Britain, ?–?)
 * Land, Frank William (Britain, ?–?)
 * Landau, Edmund (Germany, 1877–1938)
 * Landau, Henry (USA, ?–?)
 * Landau, Susan (USA, born 1954)
 * Landen, John (Britain, 1719–1790)
 * Lander, Eric (USA, born 1957)
 * Landis, Evgenii (Russia/Soviet Union, 1921–1997)
 * Landrock, Peter (Denmark, born 1948)
 * Landsberg, Georg (Germany, 1865–1912)
 * Landweber, Peter (USA, born 1940)
 * Lane, Ernest Preston (?, 1886–1969)
 * Lane, Saunders Mac (USA, 1909–2005)
 * Lanford, Oscar (?, 1940–2013)
 * Lang, Peter Redford Scott (Britain, 1850–1926)
 * Lang, Serge (USA, 1927–2005)
 * Lange-Nielsen, Fredrik (Norway, 1891–1980)
 * Lange, Tanja (Germany, ?–?)
 * Langer, Rudolf Ernest (USA, 1894–1968)
 * von Langerfeld, Rutger (Netherlands, 1635–1695)
 * Langerman, Stefan (Belgium, ?–?)
 * Langlands, Robert (Canada, born 1936)
 * von Langsdorf, Karl Christian (Germany, 1757–1834)
 * Lantuéjoul, Christian (France, born 1950)
 * Lantz, Johann (Germany, 1564–1638)

Lap

 * Lapazaya, Giorgio (Italy, 1490s–1570s)
 * Lapid, Erez (Israel, born 1971)
 * Laplace, Pierre-Simon (France, 1749–1827)
 * Lappan, Glenda (USA, born 1939)
 * Laptev, Ari (Ukraine, born 1950)
 * Larijani, Mohammad-Javad (Iran, born 1951)
 * Larkin, Jill H. (USA, born 1943)
 * Larmor, Joseph (Ireland, 1857–1942)
 * Larmore, Lawrence (USA, ?–?)
 * Larsen, Michael J. (USA, ?–?)
 * Larson, Jean A. (?, ?–?)
 * Larson, Ron (USA, born 1941)
 * Larsson, Elisabeth (scientific computing) (Sweden, born 1971)
 * D'Laryea, Nathan (?, born 1985)
 * Lascoux, Alain (France, 1944–2013)
 * Lashof, Richard (USA, 1922–2010)
 * Lasiecka, Irena (Poland, born 1948)
 * Láska, Václav (Czech Republic, 1862–1943)
 * Laskar, Renu C. (India, ?–?)
 * Lasker, Emanuel (Germany, 1868–1941)
 * Laspeyres, Étienne (?, 1834–1913)
 * Laszlo, Yves (France, ?–?)
 * Lathrop, John Hiram (?, 1799–1866)
 * Latimer, Claiborne (USA, 1893–1960)
 * Latora, Vito (?, ?–?)
 * Lattès, Samuel (?, 1873–1918)
 * Latysheva, Klavdiya (Soviet Union/Ukraine, 1897–1956)
 * Laudal, Arnfinn (Norway, born 1936)
 * Laufer, Henry (USA, born 1945)
 * Laugwitz, Detlef (Germany, 1932–2000)
 * Laumon, Gérard (France, born 1952)
 * Launhardt, Wilhelm (Germany, 1832–1918)
 * Laura, Ernesto (Italy, 1879–1949)
 * Laurent, Monique (France/Netherlands, ?–?)
 * Laurent, Paul Matthieu Hermann (France, 1841–1908)
 * Laurent, Pierre Alphonse (France, 1813–1854)
 * Lauricella, Giuseppe (Sicily, 1867–1913)
 * Laurie, Ben (?, ?–?)
 * Lauritzen, Steffen (England, born 1947)
 * Lauter, Kristin (USA, born 1969)

Lav

 * Lavanha, João Baptista (?, 1550–1624)
 * Laver, Richard (USA, 1942–2012)
 * Lavrentyev, Mikhail (Russia/Soviet Union, 1900–1980)
 * Lavut, Alexander (Soviet Union, 1929–2013)
 * Law, John (England, 1745–1810)
 * Lawden, Derek Frank (New Zealand/England, 1919–2008)
 * Lawler, Greg (?, born 1955)
 * Lawrence, Charles (USA, ?–?)
 * Lawrence, Emille D. (USA, ?–?)
 * Lawrence, Ruth (England/Israel, born 1971)
 * Lawrence, Snezana (Britain, ?–?)
 * Lawson, Duncan (Britain, ?–?)
 * Lawson, H. Blaine (USA, born 1942)
 * Lawvere, William (USA, 1937–2023)
 * Lax, Anneli Cahn (USA, 1922–1999)
 * Lax, Gaspar (Spain, 1487–1560)
 * Lax, Peter (Hungary, born 1926)
 * Lax, William (England, 1761–1836)
 * Layton, Anita (Hong Kong, ?–?)
 * Layton, Katherine Puckett (?, ?–?)
 * Lazard, Daniel (France, born 1941)
 * Lazard, Michel (France, 1924–1985)
 * Lazarsfeld, Robert (USA, born 1953)
 * Le, Yang (China, 1939–2023)
 * Leader, Imre (Britain, born 1963)
 * Leader, Jeffery J. (?, born 1963)
 * Leal, Francisco Santos (Spain, born 1968)
 * Leau, Léopold (France, 1868–1943)
 * Lebedev, Nikolai Andreevich (Russia, 1919–1982)
 * Lebedev, Vyacheslav Ivanovich (Russia/Soviet Union, 1930–2010)
 * Leber, Wilhelm (Germany, born 1947)
 * Lebesgue, Henri (France, 1875–1941)
 * Lebesgue, Victor-Amédée (?, 1791–1875)
 * Leblond, Auguste-Savinien (France, 1760–1811)
 * Leblond, Jean-Baptiste (France, born 1957)
 * Lebowitz, Joel (?, born 1930)
 * Lebreton, Jean-Dominique (?, born 1950)
 * LeBrun, Claude (USA, ?–?)

Lec

 * Lecchi, Giovanni Antonio (Italy, ?–?)
 * Lechuga, Cristobal (Spain, 1557–1622)
 * Lecture, Noether (?, ?–?)
 * Lecturer, AWM/MAA Falconer (?, ?–?)
 * Leder, Gilah (?, ?–?)
 * Lederman, Leon M. (USA, 1922–2018)
 * Ledermann, Walter (Germany/Britain, 1911–2009)
 * Ledoux, Michel (France, born 1958)
 * Lee, Alice (mathematician) (Britain, 1858–1939)
 * Lee, Hollylynne (USA, ?–?)
 * Lee, John M. (?, born 1950)
 * Lee, Jon (USA, born 1960)
 * Lee, Pil Joong (?, ?–?)
 * Leech, John (?, 1926–1992)
 * Leedham-Green, Charles (Britain, ?–?)
 * Leemans, Dimitri (Belgium, born 1972)
 * van Leer, Bram (?, born 1940s)
 * de Leeuw, Edith (Netherlands, born 1962)
 * van Leeuwen, Marc (Netherlands, born 1960)
 * Lefebvre, Vladimir (Russia, 1936–2020)
 * Lefschetz, Solomon (USA, 1884–1972)
 * Lega, Joceline (France, ?–?)
 * Légaut, Marcel (France, 1900–1990)
 * Legendre, Adrien-Marie (France, 1752–1833)
 * Léger, Émile (France, 1795–1838)
 * Leggett, Anne M. (?, ?–?)
 * Lehmann, Erich Leo (USA, 1917–2009)
 * Lehmer, D. H. (?, 1905–1991)
 * Lehmer, Derrick Norman (USA, 1867–1938)
 * Lehmer, Emma (USA, 1906–2007)
 * Lehmus, C. L. (Germany, 1780–1863)
 * Lehner, Joseph (USA, 1912–2013)
 * Lehoczky, John (USA, ?–?)
 * Lehr, Marguerite (USA, 1898–1987)
 * Lehrer, Tom (USA, born 1928)
 * Lehto, Olli (Finland, 1925–2020)

Lei

 * Lei, Tan (China/France, 1963–2016)
 * Leibler, Richard (USA, 1914–2003)
 * Leibniz, Gottfried Wilhelm (Germany, 1646–1716)
 * Leichtnam, Éric (France, ?–?)
 * Leichtweiss, Kurt (Germany, 1927–2013)
 * Leimanis, Eizens (Latvia, 1905–1992)
 * Leinberer, Wolfgang (Germany, 1635–1693)
 * Leinen, Felix (Germany, born 1957)
 * Leitch, William (Scotland, 1814–1864)
 * Leithold, Louis (USA, 1924–2005)
 * Leitzel, Joan (USA, born 1936)
 * Leiva, Miriam (?, ?–?)
 * Leja, Franciszek (Poland, 1885–1979)
 * Lejeune Dirichlet, Peter Gustav (Germany, 1805–1859)
 * de Lellis Gough, Mary (USA, 1892–1983)
 * Lelong, Pierre (France, 1912–2011)
 * Lemańczyk, Mariusz (Poland, ?–?)
 * Lemans, Moses (Netherlands, 1785–1832)
 * Lemaréchal, Claude (France, ?–?)
 * Lemke, Carlton E. (?, 1920–2004)
 * Lemmon, John (Britain, 1930–1966)
 * Lemoine, Émile (France, 1840–1912)
 * Lempert, László (Hungary, born 1952)
 * Lendvai, Ernő (Hungary, 1925–1993)
 * Leng, Wilfrid (England, 1952–2002)
 * Lengauer, Thomas (Germany, born 1952)
 * Lenger, Frédérique (Belgium, 1921–2005)
 * Lenhart, Suzanne (?, ?–?)
 * Lennard-Jones, John (Britain, 1894–1954)
 * Lennox, John (Ireland, born 1943)
 * Lenstra, Arjen (Netherlands, born 1956)
 * Lenstra, Hendrik (Netherlands, born 1949)
 * Lenstra, Jan Karel (Netherlands, born 1947)
 * Lenz, Hanfried (?, 1916–2013)

Leo

 * Leod, Andries Mac (Belgium, 1891–1977)
 * Leodamas of Thasos (Ancient Greece, ?–?)
 * Leon (Greece, ?–?)
 * Leonard, Kathryn (?, ?–?)
 * Leontiev, Alexey Fedorovich (Soviet Union, ?–?)
 * Leopold-Wildburger, Ulrike (Austria, born 1949)
 * Leopoldt, Heinrich-Wolfgang (Germany, 1927–2011)
 * Leotaud, Vincent (France, 1595–1672)
 * Lepage, Théophile (Belgium, 1901–1991)
 * Lepowsky, James (USA, born 1944)
 * Leray, Jean (France, 1906–1998)
 * Lerch, Mathias (Czech Republic, 1860–1922)
 * Leroy, Oswald (Belgium, 1936–2022)
 * Leschke, Katrin (Germany/Britain, born 1968)
 * Leser, C. E. V. (?, 1915–1998)
 * Leslie, Frank Matthews (Scotland, 1935–2000)
 * Leslie, John (Scotland, 1766–1832)
 * Leslie, John Robert (academic) (Ireland, 1831–1881)
 * Leśniewski, Stanisław (Poland, 1886–1939)
 * Letnikov, Aleksey (Russia, 1837–1888)
 * Letzter, Gail (?, ?–?)
 * Leung, Debbie (?, ?–?)
 * Leupold, Jacob (Germany, 1674–1727)
 * Leurechon, Jean (France, 1591–1670)
 * de Leve, Gijsbert (Netherlands, 1926–2009)
 * Levenshtein, Vladimir (Russia/Soviet Union, 1935–2017)
 * LeVeque, Randall J. (USA, ?–?)
 * LeVeque, William J. (USA, 1923–2007)
 * Levi-Civita, Libera Trevisani (Italy, 1890–1973)
 * Levi-Civita, Tullio (Italy, 1873–1941)
 * Levi, Beppo (Argentina, 1875–1961)
 * Levi, Eugenio Elia (Italy, 1883–1917)
 * Levi, Friedrich Wilhelm (Germany, 1888–1966)
 * Levi, Howard (USA, 1916–2002)
 * Levi, Isaac (USA, 1930–2018)
 * Leviatan, Dany (Israel, born 1942)
 * Levin, Boris (Soviet Union, 1906–1993)
 * Levin, Janna (?, ?–?)
 * Levin, Leonid (Russia/Soviet Union, born 1948)
 * Levine, Harold (USA, ?–2017)
 * Levine, Jerome (USA, 1937–2006)
 * Levinson, Norman (USA, 1912–1975)
 * Levit, Boris (Russia/Canada/Moldova, ?–?)
 * Levitan, Boris (?, 1914–2004)
 * Levitt, Norman (?, 1943–2009)
 * Levitzki, Jacob (Israel, 1904–1956)
 * Lévy, Azriel (Israel, born 1934)
 * Levy, Hyman (Scotland, 1889–1975)
 * Lévy, Maurice (France, 1838–1910)
 * Lévy, Paul (France, 1886–1971)
 * Lévy, Tony (?, born 1943)
 * Levytsky, Volodymyr (Ukraine, 1872–1956)

Lew

 * Lewicka, Marta (Poland, ?–?)
 * Lewin, Mathieu (France, born 1977)
 * Lewis, Alain A. (USA, born 1947)
 * Lewis, Donald John (USA, 1926–2015)
 * Lewis, Enoch (USA, 1776–1856)
 * Lewis, Florence (USA, 1877–1964)
 * Lewis, Harry R. (?, born 1947)
 * Lewis, John T. (Ireland/Wales, 1932–2004)
 * Lewis, Tony (England, ?–?)
 * Lewontin, Richard (USA, 1929–2021)
 * Lewy, Hans (Germany, 1904–1988)
 * Lexell, Anders Johan (Imperial Russia, 1740–1784)
 * Lexis, Wilhelm (Germany, 1837–1914)
 * Leybourn, William (England, 1626–1716)
 * Leyland, Paul (Britain, ?–?)
 * Lezama, Oswaldo (Colombia, born 1956)
 * Li, C. C. (China/USA, 1912–2003)
 * Li, David X. (?, ?–?)
 * Li, Jing-Rebecca (France, ?–?)
 * Li, Jun (China, ?–?)
 * Li, Michael (?, ?–?)
 * Li, Peter (mathematician) (?, born 1952)
 * Li, Sherry (China, ?–?)
 * Li, Tien-Yien (?, 1945–2020)
 * Li, Winnie (China, born 1948)
 * Li, YanYan (USA, ?–?)
 * Liang, You-Dong (China, born 1935)
 * Liberman, Joseph (Soviet Union, 1917–1941)
 * Libermann, Paulette (France, 1919–2007)
 * Libgober, Anatoly (USA/Russia/Soviet Union, born 1949)

Lic

 * Lichnerowicz, André (France, 1915–1998)
 * Lichtenbaum, Stephen (USA, born 1939)
 * Lichtenfeld, Gabriel Judah (Poland, 1811–1887)
 * Lichtenstein, Leon (Poland, 1878–1933)
 * Lickorish, W. B. R. (?, born 1935)
 * Liddel, Duncan (Scotland, 1561–1613)
 * Lidskii, Victor (Russia/Soviet Union/Ukraine, 1924–2008)
 * Lie, Sophus (Norway, 1842–1899)
 * Lieb, Elliott H. (USA, born 1932)
 * Liebeck, Martin (Britain, born 1954)
 * Liebeck, Pamela (Britain, 1930–2012)
 * Lieber, Lillian Rosanoff (Ukraine, 1886–1986)
 * Lien, Magnhild (Norway, ?–?)
 * Lifu, Jiang (China, 1890–1978)
 * Liggett, Thomas M. (?, 1944–2020)
 * Lightfoot, N. M. H. (Britain, 1902–1962)
 * Lighthill, James (Britain, 1924–1998)
 * Lightstone, A. H. (Canada, 1926–1976)
 * Lightwing, Daniel (England, born 1988)
 * Likert, Rensis (USA, 1903–1981)
 * Lilliefors, Hubert (USA, 1928–2008)
 * Lima, Elon Lages (Brazil, 1929–2017)
 * Lin, Chang-Shou (Taiwan, born 1951)
 * Lin, Chia-Chiao (China/USA, 1916–2013)
 * Lin, Fanghua (?, born 1959)
 * Lin, Michael (Israel, born 1942)
 * Lind, Doug (?, ?–?)
 * Lindau, Baruch (Germany, 1759–1849)
 * Lindeberg, Jarl Waldemar (Finland, 1876–1932)
 * Lindelöf, Ernst Leonard (Finland, 1870–1946)
 * Lindelöf, Lorenz Leonard (Finland, 1827–1908)
 * von Lindemann, Ferdinand (Germany, 1852–1939)
 * Linden, Paul (?, born 1947)
 * Lindenbaum, Adolf (Poland, 1904–1941)
 * Lindenstrauss, Elon (Israel, born 1970)
 * Lindenstrauss, Joram (Israel, 1936–2012)
 * Lindgren, Harry (Australia, 1912–1992)
 * Lindley, Dennis (England, 1923–2013)
 * Lindsay, James A. (USA, born 1979)
 * Lindstedt, Anders (Sweden, 1854–1939)
 * Lindström, Per (Sweden, 1936–2009)
 * Linfoot, Edward (England, 1905–1982)
 * Linial, Nati (Israel, born 1953)
 * Linnainmaa, Seppo (Finland, born 1945)
 * Linnik, Yuri (Russia/Soviet Union, 1915–1972)
 * Linstone, Harold A (USA, 1924–2016)
 * van Lint, J. H. (?, 1932–2004)

Lio

 * Le Lionnais, François (France, 1901–1984)
 * Lions, Jacques-Louis (France, 1928–2001)
 * Lions, Pierre-Louis (France, born 1956)
 * Liouville, Joseph (France, 1809–1882)
 * Lipkin, Yom Tov Lipman (Lithuania, 1846–1876)
 * Lipman, Joseph (Canada, born 1938)
 * Lipschitz, Rudolf (Germany, 1832–1903)
 * Lipschutz, Seymour (USA, ?–?)
 * Lipton, Richard (?, born 1946)
 * Liptser, Robert (Russia/Israel, 1936–2019)
 * Lisek, Robert B. (Poland, ?–?)
 * Lissajous, Jules Antoine (France, 1822–1880)
 * List of mathematicians (?, ?–?)
 * Listing, Johann Benedict (Germany, 1808–1882)
 * Littelmann, Peter (Germany, ?–?)
 * Little, Charles Newton (?, 1858–1923)
 * Littlewood, Dudley E. (Britain, 1903–1976)
 * Littlewood, John Edensor (England, 1885–1977)
 * Litvinova, Elizaveta (Russia, 1845–1919)
 * Litwiller, Bonnie (?, 1937–2012)
 * Litzinger, Marie (?, 1899–1952)
 * Liu, Andy (Canada, ?–?)
 * Liu, Chiu-Chu Melissa (Taiwan, born 1974)
 * Liu, Kefeng (China, born 1965)
 * Liu, Tai-Ping (Taiwan, born 1945)
 * Livens, George Henry (Britain, 1886–1950)
 * Livsic, Mikhail Samuilovich (Ukraine/Israel, 1917–2007)
 * Ljunggren, Wilhelm (Norway, 1905–1973)
 * Lloyd, Bartholomew (Ireland, 1772–1837)
 * Lloyd, Noel (Wales, 1946–2019)

Llu

 * Llull, Ramon (Medieval Spain, 1230s–1315)
 * Lo, Martin (USA, ?–?)
 * Loan, Charles F. Van (USA, 19??–?)
 * Löb, Martin (Germany, 1921–2006)
 * Lobachevsky, Nikolai (Russia, 1792–1856)
 * Lobanov, Mikhail (Russia, born 1984)
 * Lobatto, Rehuel (Netherlands, 1797–1866)
 * Löbenstein, Klara (Germany, 1883–1968)
 * y Lobkowitz, Juan Caramuel (Spain, 1606–1682)
 * Lock, Patti Frazer (USA, ?–?)
 * Lockhart, Deborah Frank (?, ?–?)
 * Lockhart, J. B. (Britain, 1886–1969)
 * Lockhart, James (England, 1763–1852)
 * Loday, Jean-Louis (France, 1946–2012)
 * Lodge, Alfred (England, 1854–1937)
 * Lodge, Derek (England, 1929–1996)
 * Loeb, Peter A. (?, ?–?)
 * Loehnis, Clive (?, 1902–1992)
 * Loepp, Susan (?, ?–?)
 * Loeser, François (France, born 1958)
 * Loève, Michel (France, 1907–1979)
 * Loewner, Charles (Czech Republic, 1893–1968)
 * Loewy, Alfred (Germany, 1873–1935)
 * Logan, Adam (Canada, born 1975)
 * Logares, Marina (Spain, born 1976)
 * Logemann, George (USA, 1938–2012)
 * Logisticus, Apollodorus (Ancient Greece, ?–?)
 * Logsdon, Mayme (?, 1881–1967)
 * Logunov, Aleksandr (mathematician) (Russia, ?–?)
 * Loh, Po-Shen (?, ?–?)
 * Lohwater, Arthur J. (USA, 1922–1982)

Loj

 * Łojasiewicz, Stanisław (Poland, 1926–2002)
 * Lombaers, Henk (Netherlands, 1920–2007)
 * Lombardo-Radice, Lucio (Italy, 1916–1982)
 * Lombardo, Sara (Italy, ?–?)
 * Łomnicki, Antoni (Poland, 1881–1941)
 * Lomonaco Jr., Samuel J. (USA, ?–?)
 * Lomonosov, Victor (Russia, 1946–2018)
 * Lomov, Igor (Russia, ?–?)
 * Loney, S. L. (England, 1860–1939)
 * Long, Ling (mathematician) (China, ?–?)
 * Long, Lynette (USA, born 1948)
 * de Longchamps, Gaston Albert Gohierre (France, 1842–1906)
 * Longfield, Mountifort (Ireland, 1802–1884)
 * Longo, Carlotta (?, born 1895)
 * Longo, Giovanni Lodovico (Italy, ?–?)
 * Longuet-Higgins, Michael S. (England, 1925–2016)
 * Longyear, Judith Q. (?, 1938–1995)
 * Lonicer, Adam (Germany, 1528–1586)
 * Looijenga, Eduard (Netherlands, born 1948)
 * Loomis, Elias (?, 1811–1889)
 * Loomis, Elisha Scott (USA, 1852–1940)
 * Loomis, Lynn Harold (USA, 1915–1994)
 * Loone, Leiki (Estonia, born 1944)
 * Lopatinskii, Yaroslav (Russia, 1906–1981)
 * Lopes, Artur Oscar (Brazil, born 1950)
 * Lopes, Helena J. Nussenzveig (Brazil, ?–?)
 * López de Medrano, Santiago (Mexico, born 1942)
 * Lorch, Edgar (USA, 1907–1990)
 * Lorch, Lee (Canada, 1915–2014)
 * Lord, Frederic M. (?, 1912–2000)
 * Lorentzen, Lisa (Norway, ?–?)
 * Lorenz, Edward Norton (USA, 1917–2008)
 * Lorenz, Ludvig (Denmark, 1829–1891)
 * Lorenzen, Paul (Germany, 1915–1994)
 * Loreti, Paola (Italy, ?–?)
 * Lorgna, Antonio Maria (?, 1735–1796)
 * Loria, Gino (Italy, 1862–1954)
 * Lorimer, Peter James (New Zealand, 1939–2010)

Los

 * Łoś, Jerzy (Poland, 1920–1998)
 * de Losada y Puga, Cristóbal (Peru, 1894–1961)
 * de Losada, María Falk (Colombia, ?–?)
 * Losev, Ivan (mathematician) (Belarus, born 1981)
 * Lotka, Alfred J. (USA, 1880–1949)
 * Lott, John (USA, born 1959)
 * de la Loubère, Simon (?, 1642–1729)
 * Lousto, Carlos (Argentina, ?–?)
 * Lovász, László (Hungary, born 1948)
 * Love, Augustus Edward Hough (Britain, 1863–1940)
 * Love, Clyde E. (USA, 1882–1960)
 * Lovelace, Ada (England, 1815–1852)
 * Loveland, Donald W. (USA, born 1934)
 * Lovelock, David (Britain, born 1938)
 * Lovering, Joseph (USA, 1813–1892)
 * Lovett, Edgar Odell (USA, 1871–1957)
 * Löwe, Benedikt (Germany, born 1972)
 * Löwenheim, Leopold (Germany, 1878–1957)
 * Löwenstein, Baruch Solomon (?, ?–?)
 * Lowery, David (USA, born 1960)
 * Lowrie, Tom (?, born 1964)
 * Lozhkin, Sergey (Russia, born 1951)
 * Lu, Guozhen (USA, born 1963)
 * Lu, Liu (China, ?–?)
 * Luan, Zhen (Medieval China, 535–566)
 * Lubich, Christian (Austria, born 1959)
 * de Lubicz, R. A. Schwaller (?, 1887–1961)
 * de Lubières, Charles-Benjamin (?, 1714–1790)
 * Lubin, Jonathan (USA, born 1936)
 * Lubnauer, Katarzyna (Poland, born 1969)
 * Lubotzky, Alexander (Israel, born 1956)
 * Luby, Michael (?, ?–?)

Luc

 * Luca, Florian (Romania, born 1969)
 * Lucas, Édouard (France, 1842–1891)
 * Luchins, Edith Hirsch (USA, 1921–2002)
 * Luchko, Yuri (Germany, ?–?)
 * Lück, Wolfgang (Germany, born 1957)
 * Luckhaus, Stephan (Germany, ?–?)
 * Lucks, Stefan (?, ?–?)
 * Luczak, Malwina (Poland/Australia, ?–?)
 * Łuczak, Tomasz (Poland, born 1963)
 * Ludeña, Antonio (Spain, 1740–1820)
 * Ludlam, William (England, 1717–1788)
 * Ludvigsen, Malcolm (Britain, born 1946)
 * Ludwig, Monika (Austria, born 1966)
 * Luecke, John Edwin (USA, ?–?)
 * Luenberger, David (USA, born 1937)
 * Lukacs, Eugene (Hungary, 1906–1987)
 * Łukasiewicz, Jan (Poland, 1878–1956)
 * Luke, Yudell (USA, 1918–1983)
 * Luks, Eugene M. (USA, ?–?)
 * Lumer, Günter (Germany/Uruguay/Belgium, 1929–2005)
 * Lumiste, Ülo (Estonia, 1929–2017)
 * Lunardi, Alessandra (Italy, born 1958)
 * Lundberg, Filip (Sweden, 1876–1965)
 * Luneburg, Rudolf (?, 1903–1949)
 * Luntz, Frank (USA, born 1962)
 * Luo, Xiaoyu (Britain/China, ?–?)
 * Luogeng, Hua (China, 1910–1985)
 * Lupanov, Oleg (Russia/Soviet Union, 1932–2006)
 * Lupaș, Alexandru Ioan (Romania, 1942–2007)
 * Lupercio, Ernesto (Mexico, ?–?)
 * Lupitus of Barcelona (?, ?–?)

Lur

 * Lure, Anatoliy (?, 1901–1980)
 * Lurie, Jacob (USA, born 1977)
 * Lüroth, Jacob (Germany, 1844–1910)
 * Lusztig, George (Romania, born 1946)
 * Lutwak, Erwin (USA, born 1946)
 * Lutz, Élisabeth (France, 1914–2008)
 * Lutz, Jack (?, ?–?)
 * Lutz, Julie (?, ?–?)
 * Lützen, Jesper (?, born 1951)
 * Luure, Andres (Estonia, born 1959)
 * Luxemburg, Wilhelmus (USA, 1929–2018)
 * Luzin, Nikolai (Soviet Union/Russia, 1883–1950)
 * Lvovický, Cyprián Karásek (Czech Republic, 1510s–1574)
 * Lyambabaje, Alexandre (?, born 1960)
 * Lyapunov, Aleksandr (Ukraine/Russia, 1857–1918)
 * Lyapunov, Alexey (Soviet Union, 1911–1973)
 * Lydiat, Thomas (England, 1572–1646)
 * Lynch, Arnold (?, 1914–2004)
 * Lynch, Peter (Ireland, ?–?)
 * Lyndon, Roger (USA, 1917–1988)
 * Lyon, Hilda (Britain, 1896–1946)
 * Lyons, Israel (England, 1739–1775)
 * Lyons, Richard (USA, born 1945)
 * Lyons, Russell (?, born 1957)
 * Lyons, Terry (Britain, born 1953)
 * Lyttkens, Sonja (Sweden, 1919–2014)
 * Lyubich, Mikhail (USA/Ukraine/Soviet Union, born 1959)
 * Lyudskanov, Alexander (Bulgaria, 1926–1976)
 * Lyusternik, Lazar Aronovich (Soviet Union, 1899–1981)