Pierre Charles Lenoir (French, 1879–1951) Leo Lentelli (American, 1879–1961) Lambert Alexandre Leonard (French, 1821–1877) Stanislas Lépine (French, 1835–1892) Louis Eugène Leroux (French, 1833–1905) Jules-Clement Levasseur (French, 1831–1888) Georges Levasseur (French) Levin-Funke Victor Lexa (Czech, XIX-XX) Karel Lidicky (Czech, 1900–1976) Ernst Liebermann (German, 1869–1960) Ferdinand Liebermann (German, 1883–1941) Hans Harry Liebmann (German, 1876–1941) Roger Marcel Limouse (French, 1894–1990) Joan Llimona y Bruguera (Spanish, 1860–1926)
Georg Lober (American, 1892–1961) Hugo Loffler (German, 1859–1935) Josef Lorenzl (Austrian, 1892–1950) John Graham Lough (British, 1789–1876) Josef Loukota (Czech, 1879–1967) Boris Lovet-Lorski (American, 1894–1973) Artur Imanuel Lowental (Austrian, born 1879) Ferdinand Lugerth (Austrian, 1885–1915) Jens Lund (Danish, 1873–1946) Elek Lux (Hungarian, born 1884) Paul Francois Machault (French, born 1835) Sir Edgar Bertram Mackennal (Australian, 1863–1931) Gustav Macoun (Czech, 1892–1934) Gyulio von Madarasz (Hungarian, 1858–1931) Karl Mader (Austrian, 1884–1952)