| Maestro de Heiligenkreuz | Austria | 1301–1430 | 2 |
| Maestro de Hartford | — | 1600–1700 | 1 |
| Maestro de Grekiska skolan | — | — | 2 |
| Maestro de Geschiedenis van Jozef | — | 1480–1520 | 9 |
| Maestro de Georgsgilde in Mecheln | Southern Netherlands | 1450–1508 | 1 |
| Maestro de Frankfurt | Burgundian Netherlands | 1460–1515 | 8 |
| Maestro de Forlì | — | 1201–1400 | 2 |
| Maestro de Flora | France | 1550–1600 | 1 |
| Maestro de Estopiñán | — | — | 1 |
| Maestro de Delft | — | — | 4 |
| Maestro de Cruïlles | — | — | 1 |
| Maestro de Coëtivy | France | 1450 | 1 |
| Maestro de Budapest | — | 1500–1600 | 1 |
| Maestro de Brujas de 1473 | — | — | 1 |
| Maestro de Boí | — | — | 21 |
| Maestro de Belmonte | — | — | 1 |
| Maestro de Bellaert | — | 1470–1490 | 1 |
| Maestro de Becerril | Spain | — | 5 |
| Maestro de Baltimore | — | — | 1 |
| Maestro de Badalona | — | 1500–1500 | 1 |
| Maestro de Ávila | Spain | — | 1 |
| Maestro de Augsburgse Ecce Homo | — | 1520–1560 | 1 |
| Maestro de Astorga | — | 1600 | 3 |
| Maestro de Artés | — | — | 1 |
| Maestro de Alkmaar | — | 1470–1515 | 5 |
| Maestro de Aiguatèbia | — | — | 2 |
| Maestro de Ac Monogram | — | 1550–1595 | 1 |
| Maestro de 1518 | — | 1500–1530 | 7 |
| Maestro de 1515 | Italy | 1500–1600 | 4 |
| Maestro de 1416 | — | — | 2 |
| Maestro de 1333 | — | — | 1 |
| Maestro de 1310 | — | 1201 | 1 |
| Maestro Daddesco | — | — | 3 |
| Maestro Bertram | Germany | 1345–1415 | 2 |
| Maestro Bartolomé | Spain | 1440–1510 | 1 |
| Maestra de la vista de Santa Gudula | — | — | 5 |
| Maerten Stoop | Kingdom of the Netherlands | 1618–1647 | 2 |
| Maerten Fransz. van der Hulst | Netherlands | 1590–1645 | 1 |
| Maerten Boelema de Stomme | Dutch Republic | 1611–1644 | 3 |
| Maejima Sōyū | Japan | — | 2 |
| Madge Oliver | United Kingdom of Great Britain and Ireland | 1874–1924 | 2 |
| Madame de Pompadour | France | 1721–1764 | 7 |
| Macrino d'Alba | — | 1460–1520 | 3 |
| Mabuse | Holy Roman Empire | 1478–1532 | 46 |
| Mabel Ritter | United States | 1907–1987 | 11 |
| Mabel R. Welch | United States | 1871–1959 | 1 |
| Mabel Dwight | United States | 1876–1955 | 1 |
| Maarten van Heemskerck | Habsburg Netherlands | 1498–1574 | 21 |
| Ma yuan | Song dynasty | 1160–1225 | 4 |
| Ma Shouzhen | Ming dynasty | 1548–1604 | 1 |
| Ma Quan | Qing dynasty | 1669–1722 | 1 |
| Ma Lin | Song dynasty | 1180–1256 | 2 |
| Ma Hezhi | Song dynasty | 1150 | 2 |
| M. A. Sullivan | — | — | 1 |
| Lyonel Feininger | United States | 1871–1956 | 1 |
| Lykomedes Painter | — | — | 1 |
| Lydia Field Emmet | United States | 1866–1952 | 1 |
| Luzio Luzi | Italy | 1528–1573 | 2 |
| Luther Allen | United States | 1780–1821 | 1 |
| Luo Zhichuan | China | 1350 | 1 |