David Leverett (British, 1938–2020) Gustave Loiseau (French, 1865–1935) John Arthur Lomax (British, 1857–1923) Maximilien Luce (French, 1858–1941) Paul Madeline (French, 1863–1920) Cesare Maggi (Italian, 1881–1961) Florence Marlowe (British) Georges Philibert Charles Maroniez (French, 1865–1933) Karl Martens (American, born 1956) Maurice Martin (French, 1894–1978) C. Massin (French) Henri Jacques Masson (French, b. after 1908–d. after 1995) Jean Mayne (French, 1850–1905) Clive McCarthy Clive McCartney (Scottish, born 1960)
Arthur Joseph Meadows (British, 1843–1907) Emile Mesnager (French, 1880–1940) Joan Miró (Spanish, 1893–1983) Claude Monet (French, 1840–1926) Pierre Eugène Montézin (French, 1874–1946) François Richard de Montholon (French, 1856–1940) Ronny Moortgat (Belgian, born 1951) Henry Moret (French, 1856–1913) David Mueller (American, born 1963) Sir Alfred Munnings (British, 1878–1959) Lluis (Luis) Muntané Muns (Spanish, 1899–1987) Carlos Nadal (Spanish, 1917–1998) Ben Nicholson (British, 1894–1982) George Bernard O'Neill (British, 1828–1917) Jean Baptiste Olive (French, 1848–1936)
