- MacLaughlan, Donald Shaw
- Maillol, Aristide
- Mancuso, Leni
- Manet, Edouard
- Marchant, Leonard
- Marcks, Gerhard
- Margolies, Samuel
- Marini, Marino
- Markham, Kyra
- Matsubara
- Matto
- Mauroner, Fabio
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- McBey, James
- McCardle, J.
- Meader, Jonathan
- Meir, Hans
- Meissner, Leo
- Menpes, Mortimer
- Mershimer, Frederick
- Mess, George Jo
- Meunier, Georges
- Michaels, Glen
- Millington, Terence
- Mirek, Robert
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- Miro, Joan
- Mitchell, Jack
- Mock, Richard
- Moll, Marg
- Moran, Thomas
- Mordant, Daniel
- More, Chet La
- Moreau, P.L.
- Morghon, Raphael
- Morland, George
- Moser, Barry
- Moskowitz, Ira
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- Motherwell, Robert
- Moy, Seung
- Moyano, Sergio
- Mucha, Alphonse
- Mueller, Hans
- Mukarovsky
- Munch, Edvard
- Murphy, Catherine
- Mutchnick, M.A.
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