Baltasar Lobo (Spanish, 1910–1993) Markus Lüpertz (German, born 1941) Adolf Luther (German, 1912–1990) Heinz Mack (German, born 1931) August Macke (German, 1887–1914) Aristide Maillol (French, 1861–1944) Robert Mangold (American, born 1937) Franz Marc (German, 1880–1916) Maria Marc (German, 1876–1955) Gerhard Marcks (German, 1889–1981) Marino Marini (Italian, 1901–1980) Ewald Mataré (German, 1887–1965) Georges Mathieu (French, 1921–2012) Henri Matisse (French, 1869–1954) Jackie Matisse (French, 1931–2021)
Allan McCollum (American, born 1944) Fausto Melotti (Italian, 1901–1986) Jean Miotte (French, 1926–2016) Joan Miró (Spanish, 1893–1983) Henry Moore (British, 1898–1986) Giorgio Morandi (Italian, 1890–1964) François Morellet (French, 1926–2016) Wilhelm Morgner (German, 1891–1917) Michael Morgner (German, born 1942) Robert Motherwell (American, 1915–1991) Alphonse Mucha (Czech, 1860–1939) Otto Mueller (German, 1874–1930) Matt Mullican (American, born 1951) Edvard Munch (Norwegian, 1863–1944) Gabriele Münter (German, 1877–1962)
