| Meister der Pollinger Tafeln | Germany | 1405–1490 | 5 |
| Meister der Oswaldlegende | Austria | 1401 | 2 |
| Meister der Madonna von Covarrubias | — | — | 1 |
| Meister der Legendenszenen | — | 1500–1600 | 3 |
| Meister der Kaufmannschen Kreuzigung | — | — | 1 |
| Meister der Divisio Apostolorum | — | 1460–1510 | 1 |
| Meister der Darbringungen | — | 1400–1500 | 1 |
| Meister der Anbetung der Hirten | — | — | 1 |
| Meindert Hobbema | Dutch Republic | 1638–1709 | 42 |
| Meiffren Conte | France | 1630–1705 | 1 |
| Mei Qing | Qing dynasty | 1623–1697 | 4 |
| Meester van Pratovecchio | — | 1500–1500 | 11 |
| Meester van het Heiligenmartelaarschap | — | 1480–1505 | 1 |
| Meester van het Altaar van Friedrich | Austria | 1425–1475 | 1 |
| Meester van de Utrechtse Aanbidding | — | 1510–1540 | 4 |
| Meester van de schrijndeuren van Aken | — | — | 1 |
| Meester van de Madonna van Benda | — | 1500 | 1 |
| Meester van de Heilige Aegidius | — | — | 1 |
| Meester van de epitaaf van Florian Wink | — | 1465–1495 | 2 |
| Meester van Charles van Durazzo | — | — | 3 |
| Meester der Johannesmartelingen | — | — | 1 |
| Medeschini | — | — | 1 |
| McKay | United States | — | 2 |
| May Vale | Australia | 1862–1945 | 1 |
| Maxwell Balfour | United Kingdom of Great Britain and Ireland | 1874–1914 | 2 |
| Maximilien Villers | France | 1836 | 3 |
| Maximilien Luce | France | 1858–1941 | 10 |
| Maximilien de Hesse-Cassel | Germany | 1689–1753 | 1 |
| Maximilian Pfeiler | Germany | 1656–1746 | 1 |
| Maximilian Lenz | Austria | 1860–1948 | 1 |
| Maximilian Joseph Schinnagl | — | 1697–1762 | 1 |
| Maxime Vorobiov | Russian Empire | 1787–1855 | 1 |
| Maxime Maufra | France | 1861–1918 | 8 |
| Maxime Lalanne | France | 1827–1886 | 18 |
| Maxime Du Camp | France | 1822–1894 | 1 |
| Maxime Dethomas | France | 1867–1929 | 4 |
| Maxim Gauci | Malta | 1774–1854 | 1 |
| Max Zachmann | Germany | 1892–1917 | 1 |
| Max Wolf | Germany | 1863–1932 | 1 |
| Max Slevogt | Germany | 1868–1932 | 4 |
| Max Seliger | Germany | 1865–1920 | 1 |
| Max Rosenthal | United States | 1833–1918 | 7 |
| Max Pechstein | Germany | 1881–1955 | 1 |
| Max Liebermann | Germany | 1847–1935 | 26 |
| Max Kurzweil | Cisleithania | 1867–1916 | 2 |
| Max Klinger | Germany | 1857–1920 | 34 |
| Max Josef Wagenbauer | Kingdom of Bavaria | 1774–1829 | 9 |
| Max Beckmann | Germany | 1884–1950 | 57 |
| Mauro Gandolfi | Status Pontificius | 1764–1834 | 1 |
| Mauro Antonio Tesi | — | 1730–1766 | 2 |
| Maurizio Pedetti | Germany | 1719–1799 | 1 |
| Maurizio Cattelan | Italy | 1960 | 1 |
| Mauritz de Haas | Kingdom of the Netherlands | 1832–1895 | 1 |
| Maurice-Quentin de La Tour | France | 1704–1788 | 10 |
| Maurice Utrillo | France | 1883–1955 | 6 |
| Maurice Prendergast | United States | 1858–1924 | 37 |
| Maurice Jacques | France | 1712–1784 | 2 |
| Maurice Galbraith Cullen | Canada | 1866–1934 | 1 |
| Maurice Fromkes | United States | 1872–1931 | 4 |
| Maurice Dumont | France | 1869–1899 | 1 |