| ARTIST | BORN-DIED | PERIOD | SCHOOL |
M | MASTER of the Legend of Saint. Ursula (I) | (active 1480-1500) | Northern Renaissance | Flemish painter (Bruges) |
| MASTER of the Life of Saint John the Baptist | (active 1325-1350) | Medieval | Italian painter (Rimini) |
| MASTER of the Life of the Virgin | (active 1463-1480) | Northern Renaissance | German painter (Cologne) |
| MASTER of the Lille Adoration | (active 1510-1530) | Northern Renaissance | Flemish painter (Antwerp) |
| MASTER of the Lucchese Immaculate Conception (see FREDIANI, Vincenzo di Antonio) | (active 1481-1505) | Early Renaissance | Italian painter (Lucca) |
| MASTER of the Lyversberg Passion | (active 1460-1490) | Northern Renaissance | German painter (Cologne) |
| MASTER of the Mascoli Altar | (active 1425-1450) | Early Renaissance | Italian sculptor (Venice) |
| MASTER of the Munich Marian Panels | (active c. 1450) | Northern Renaissance | German painter (Munich) |
| MASTER of the Osservanza | (active 1430-1450) | Early Renaissance | Italian painter (Siena) |
| MASTER of the Palazzo Venezia Madonna | (active c. 1350) | Medieval | Italian painter (Siena) |
| MASTER of the Parrot | (active 1525-1550) | High Renaissance | Flemish painter (Antwerp) |
| MASTER of the Pesaro Crucifix | (active 1380-1400) | Medieval | Italian painter (Venice) |
| MASTER of the Pfullendorf Altar | (active c. 1500) | Northern Renaissance | German painter |
| MASTER of the Piccolomini Madonna | (active 1450-1500) | Early Renaissance | Italian sculptor (Siena) |
| MASTER of the Pietà | (active 1350-1375) | Medieval | Italian painter (Siena) |
| MASTER of the Playing Cards | (active 1435-1450) | Northern Renaissance | German graphic artist (Upper Rhine) |
| MASTER of the Polling Panels | (active 1435-1450) | Northern Renaissance | German painter (Upper Bavaria) |
| MASTER of the Prodigal Son | (active 1530-1560) | Mannerism | Flemish painter (Antwerp) |
| MASTER of the Registrum Gregorii | (active c. 972-1000) | Medieval | German illuminator (Trier) |
| MASTER of the Rinuccini Chapel (see MATTEO DI PACINO) | (active 1359-1374) | Medieval | Italian painter (Florence) |
| MASTER of the St. Bartholomew Altar | (active 1470-1510) | Northern Renaissance | German painter (Cologne) |
| MASTER of the Story of Griselda | (active 1490s) | Early Renaissance | Italian painter (Siena) |
| MASTER of the Straus Madonna | (active 1385-1415) | Early Renaissance | Italian painter (Florence) |
| MASTER of the Tegernsee Passion | (active 1430-1450) | Northern Renaissance | German painter |
| MASTER of the Trebon Altarpiece | (active 1380-1400) | Medieval | Bohemian painter |
| MASTER of the Vienna Adoration | (active around 1410) | Northern Renaissance | Austrian painter |
| MASTER of the View of Ste Gudule | (active c. 1480) | Northern Renaissance | Flemish painter (Brussels) |
| MASTER of the Virgo inter Virgines | (active 1470-1500) | Northern Renaissance | Netherlandish painter (Delft) |
| MASTER of the Votive Panel of Sankt Lambrecht | (active around 1430) | Northern Renaissance | Austrian painter |
| MASTER PAUL of Lőcse | (active 1500-1520) | Northern Renaissance | Hungarian sculptor |
| MASTER THEODERIC | (active 1350-70) | Medieval | Bohemian painter (Prague) |
| MASTER THOMAS de Coloswar | (first half of 15th cent.) | Northern Renaissance | Hungarian painter |
| MATEJKO, Jan | (1838-1893) | Realism | Polish painter |
| MATES, Joan | (c. 1370-1431) | Medieval | Catalan painter |
| MATHAM, Jacob | (1571-1631) | Baroque | Netherlandish graphic artist (Antwerp) |
| MATHAM, Theodor | (c. 1605-1676) | Baroque | Dutch graphic artist (Haarlem) |
| MATHEUS Jean Baptiste (see MATHEY, Jean Baptiste) | (c. 1630-c. 1696) | Baroque | French architect (Prague) |
| MATHEY, Jean Baptiste | (c. 1630-c. 1696) | Baroque | French architect (Prague) |
| MATSYS, Cornelis (see MASSYS, Cornelis) | (c. 1510-1575) | Northern Renaissance | Flemish painter (Antwerp) |
| MATTEINI, Teodoro | (1754-1831) | Romanticism | Italian painter (Venice) |
| MATTEIS, Paolo de | (1662-1728) | Rococo | Italian painter |
| MATTEO DA CAMPIONE | (c. 1335-1396) | Medieval | Italian architect |
| MATTEO di Giovanello (see GATTAPONE) | (c. 1300-1383) | Medieval | Italian architect |
| MATTEO DI GIOVANNETTI (see GIOVANETTI, Matteo) | (c. 1300-c. 1368) | Medieval | Italian painter (Avignon) |
| MATTEO di Giovanni | (c. 1430-1495) | Early Renaissance | Italian painter (Siena) |
| MATTEO DI PACINO | (active 1359-1374) | Medieval | Italian painter (Florence) |
| MATTEO DI SER CAMBIO | (active 1377-1427) | Early Renaissance | Italian illuminator (Perugia) |
| MATTHEW PARIS | (c. 1200-1259) | Medieval | English illuminator |
| MATTHIEU, Georg David | (1737-1778) | Rococo | German painter |
| MAUFRA, Maxime | (1861-1918) | Impressionism | French painter |