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- Bernard Lacoste (1931–2006), president of Lacoste apparel company
- Henri Langlois (1914–1977), film preservationist
- Pierre Larousse (1817–1875), author of encyclopedia Larousse Gastronomique
- Henri Laurens (1885–1954), sculptor, engraver
- Alphonse Laveran (1845–1922), physician, parasitologist
- Maurice Leblanc (1864–1941), biographer of Arsène Lupin, novelist
- Charles Marie René Leconte de Lisle (1818–1894), poet
- Jean Henri Lefortier (1819–1886), painter
- Alexandre Lenoir (1761–1839), archaeologist
- Philippe Léotard (1940–2001), teacher, actor, poet, singer
- Urbain Le Verrier (1811–1877), astronomer and mathematician
- André Lhote (1885–1962), painter and sculptor
- Jacques Lisfranc (1790–1847), gynecologist and surgeon
- Émile Littré (1801–1881) lexicographer, philosopher
- Baltasar Lobo (1910–1993), Spanish sculptor
- Sylvia Lopez (1931–1959), actress
- Louis Loucheur (1872–1931), statesman
- Pierre Louÿs (1870–1925), poet, romance novelist
Read more about this topic: Montparnasse Cemetery