| Assar Lindbeck | Swedish economist | 1930 |
| Anne Morrow Lindbergh | American aviator and author | 1906–2001 |
| Charles Lindbergh | American aviator, author, inv… | 1902–1974 |
| Mike Lindell | American businessman | 1961 |
| Till Lindemann | German industrial metal music… | 1963 |
| Dennis Lindley | British statistician | 1923–2013 |
| Nathaniel Lindley, Baron Lindley | English judge | 1828–1921 |
| Elias Hiam Lindo | | |
| Dave Lindorff | Award winning American journa… | 1949 |
| David Lindsay | Scottish noble and poet | 1490–1554 |
| Eric Mervyn Lindsay | Irish astronomer | 1907–1974 |
| Jack Lindsay | Australian writer in the Unit… | 1900–1990 |
| Jeff Lindsay | American playwright and crime… | 1952 |
| Norman Lindsay | Australian artist (1879-1969) | 1879–1969 |
| Ted Lindsay | Canadian ice hockey player | 1925–2019 |
| Thomas Martin Lindsay | Scottish historian, professor… | 1843–1914 |
| Vachel Lindsay | American poet | 1879–1931 |
| Johanna Lindsey | American writer | 1952–2019 |
| Graham Linehan | Irish screenwriter | 1968 |
| Marsha M. Linehan | psychologist, professor, auth… | 1943 |
| Lisa Ling | American journalist, televisi… | 1973 |
| Jigme Lingpa | Lama | 1729–1798 |
| Kelly Link | American writer | 1969 |
| Pentti Linkola | Finnish ecologist | 1932 |
| George Linley | British writer | 1798–1865 |
| Victor Hope, 2nd Marquess of Linlithgow | British politician, agricultu… | 1887–1952 |
| Väinö Linna | Finnish writer | 1920–1992 |
| Carl Linnaeus | Swedish botanist, physician, … | 1707–1778 |
| lino | French rapper | 1974 |
| Paulo Lins | Brazilian author | 1958 |
| Charles de Lint | author | 1951 |
| Stephanie Okereke Linus | Nigerian Actress and singer | 1982 |
| Alex D. Linz | American actor, filmmaker | 1989 |
| Cathie Linz | American writer | 1954–2015 |
| Andrew Linzey | British theologian and divine | 1952 |
| Ray Liotta | American actor | 1954 |
| Dua Lipa | English singer and songwriter | 1995 |
| Dinu Lipatti | Pianist, Composer | 1917–1950 |
| Jacques Lipchitz | American and French sculptor | 1891–1973 |
| Maureen Lipman | British actress, columnist an… | 1946 |
| George Lippard | Novelist, journalist | 1822–1854 |
| Lucy R. Lippard | American art curator | 1937 |
| Laura Lippman | Detective fiction writer | 1959 |
| Walter Lippmann | American journalist | 1889–1974 |
| David Lipscomb | Leader, American Restoration … | 1831–1917 |
| Robert Lipsyte | American sports journalist, n… | 1938 |
| Bruce H. Lipton | US biologist | 1944 |
| Peter Lipton | American philosopher | 1954–2007 |
| Ibrahim Lipumba | Tanzanian politician | 1952 |
| Luiz Fernando Lisboa | 21st-century Brazilian Cathol… | 1955 |
| Antony Garrett Lisi | American theoretical physicist | 1968 |
| Beth Lisick | American writer | 1968 |
| Thérèse of Lisieux | French Discalced Carmelite nun | 1873–1897 |
| Valentina Lisitsa | Ukrainian-American classical … | 1973 |
| Claude Joseph Rouget de Lisle | French army officer | 1760–1836 |
| Holly Lisle | American writer | 1960 |
| Clarice Lispector | Brazilian writer | 1920–1977 |
| El Lissitsky | Soviet artist, designer, phot… | 1890–1941 |
| Friedrich List | German economist with dual Am… | 1789–1846 |
| Moira Lister | actress | 1923–2007 |
| Franz Liszt | Hungarian romantic composer a… | 1811–1886 |
| John Lithgow | American character actor, mus… | 1945 |
| Eliakim Littell | United States editor | 1797–1870 |
| Robert Littell | American novelist | 1935 |
| Jean Little | Canadian children's writer | 1932 |
| Roy Littlesun | | 1934 |
| John Edensor Littlewood | English Mathematician | 1885–1977 |
| Lucy Liu | American actress and model | 1968 |
| Marjorie M. Liu | American writer | 1979 |
| Simu Liu | Chinese-born Canadian actor | 1989 |
| Penelope Lively | British novelist | 1933 |
| Robert Jenkinson, 2nd Earl of Liverpool | British politician | 1770–1828 |
| David Livingstone | Scottish explorer and mission… | 1813–1873 |
| Ken Livingstone | Mayor of London between 2000 … | 1945 |
| Tzipi Livni | Israeli politician | 1958 |
| Livy | Roman historian | -59–17 BC |
| Cristina Lizardo | Dominican Republic academic | 1959 |
| Fang Lizhi | Professor of astrophysics; ci… | 1936–2012 |
| Richard Llewellyn | British novelist | 1906–1983 |
| Antonio Llidó | Spanish priest | 1936–1974 |
| Mario Vargas Llosa | Peruvian writer, politician, … | 1936 |
| Christopher Lloyd | American actor | 1938 |
| Harold Lloyd | American film actor and produ… | 1893–1971 |
| John William Lloyd | American anarchist, sexologis… | 1857–1940 |
| Ricardo P. Lloyd | British actor | 1993 |
| Seth Lloyd | American engineer | 1960 |
| Ramon Llull | Majorcan writer and philosoph… | 1232–1316 |
| Morgan Llywelyn | Irish writer | 1937 |
| Patrick Lo | | |
| Meat Loaf | American musician, singer, so… | 1947 |
| Nikolai Ivanovich Lobachevsky | Russian mathematician of Ukra… | 1792–1856 |
| Lobão | Brazilian musician | 1957 |
| Arnold Lobel | American children's illustrat… | 1933–1987 |
| Gary Locke | American politician | 1950 |
| John Locke | English philosopher and physi… | 1632–1704 |
| William J. Locke | British writer | 1863–1930 |
| Frederick Locker-Lampson | British poet | 1821–1895 |
| E. Lockhart | American writer of novels as … | 1967 |
| John Gibson Lockhart | Scottish writer and editor | 1794–1854 |
| Keith Lockhart | | |