| Ernest Legouvé | 1807–1903 | 1 |
| Georges Victor Legros | 1862–1940 | 1 |
| Edwin P. (Edwin Partridge) Lehman | 1888–1954 | 1 |
| Friedrich J. (Friedrich Johann) Lehmann | 1866–1950 | 1 |
| Lilli Lehmann | 1848–1929 | 1 |
| R. C. (Rudolf Chambers) Lehmann | 1856–1929 | 1 |
| Robert Lehmann-Nitsche | 1872–1938 | 1 |
| Derrick Norman Lehmer | 1867–1938 | 1 |
| Ernst Lehrs | 1894–1979 | 1 |
| Joel Lehtonen | 1881–1934 | 3 |
| Fritz Leiber | 1910–1992 | 4 |
| Leibniz, Gottfried Wilhelm, Freiherr von | 1646–1716 | 2 |
| Ludwig Leichhardt | 1813–1848 | 1 |
| Alexander Leighton | 1800–1874 | 3 |
| John Leighton | 1822–1912 | 3 |
| Marshall Ora Leighton | 1874–1958 | 1 |
| Robert Leighton | 1859–1934 | 5 |
| Eino Leino | 1878–1926 | 24 |
| Kasimir Leino | 1866–1919 | 8 |
| Murray Leinster | 1896–1975 | 16 |
| C. Louis (Christiaan Louis) Leipoldt | 1880–1947 | 1 |
| Albert Leitzmann | 1867–1950 | 1 |
| Guillaume Lejean | 1824–1871 | 1 |
| Aaron W. (Aaron Whitney) Leland | 1787–1871 | 1 |
| Charles Godfrey Leland | 1824–1903 | 6 |
| Pamphile Lemay | 1837–1918 | 3 |
| Jules Lemaître | 1853–1914 | 10 |
| Eugène Emmanuel Lemercier | 1886–1915 | 1 |
| Mark Lemon | 1809–1870 | 1 |
| Camille Lemonnier | 1844–1913 | 2 |
| João de Lemos | 1819–1890 | 1 |
| André Lemoyne | 1822–1907 | 1 |
| Arvo Lempiranta | 1860–1914 | 1 |
| Ninon de Lenclos | 1620–1705 | 1 |
| J. van (Jacob) Lennep | 1802–1868 | 3 |
| N. J. (Nels Johann) Lennes | born 1874 | 1 |
| P. J. (Patrick Joseph) Lennox | 1862–1943 | 1 |
| François Lenormant | 1837–1883 | 1 |
| G. Lenotre | 1855–1935 | 1 |
| Jakob Michael Reinhold Lenz | 1751–1792 | 6 |
| Pascual de Leon | 1893–1958 | 1 |
| Mary Finley Leonard | 1862–1948 | 4 |
| Nellie M. (Nellie Mabel) Leonard | born 1875 | 2 |
| Sterling Andrus Leonard | 1888–1931 | 1 |
| William Ellery Leonard | 1876–1944 | 1 |
| da Vinci Leonardo | 1452–1519 | 3 |
| Anna Harriette Leonowens | 1831–1915 | 1 |
| Giacomo Leopardi | 1798–1837 | 1 |
| Katharina Leopold | 1846–1914 | 1 |
| Marie Leopold | born 1867 | 1 |
| Edmond Lepelletier | 1846–1913 | 1 |
| Jeanne-Marie Leprince de Beaumont | 1711–1780 | 2 |
| Jules Lermina | 1839–1915 | 10 |
| Mikhail Iurevich Lermontov | 1814–1841 | 1 |
| Gaston Leroux | 1868–1927 | 7 |
| Charles Henry Lerrigo | 1872–1955 | 1 |
| Lescallier, Daniel, baron | 1743–1822 | 1 |
| Marc Lescarbot | 1570–1641 | 6 |
| Leslie, Alexander, active | 1879–1882 | 1 |
| Eliza Leslie | 1787–1858 | 2 |
| Emma Leslie | 1838–1909 | 4 |
| Madeline Leslie | 1815–1893 | 2 |
| John Lespérance | 1838–1891 | 1 |
| Gotthold Ephraim Lessing | 1729–1781 | 23 |
| W. R. (William Richard) Lethaby | 1857–1931 | 1 |
| William Pittman Lett | 1819–1892 | 1 |
| Carlos Alberto Leumann | born 1887 | 1 |
| Maurice Level | 1875–1926 | 2 |
| Charles Lever | 1806–1872 | 12 |
| Albert Levering | 1869–1929 | 1 |
| Ada Leverson | 1862–1933 | 3 |
| Ezio Levi | 1884–1941 | 1 |
| Robert Levine | born 1933 | 1 |
| Elma Ehrlich Levinger | born 1887 | 1 |
| Jacob Joshua Levison | born 1881 | 1 |
| J. H. (Joseph Hiam) Levy | 1838–1913 | — |
| Oscar Levy | 1867–1946 | 2 |
| Steven Levy | born 1951 | 1 |
| George Henry Lewes | 1817–1878 | 1 |
| Alfred Henry Lewis | 1857–1914 | 7 |