- Magris, Claudio
- Mailer, Norman
- Maines, Rachel P.
- Malaquais, Jean
- Malraux, André
- Mandosio, Jean-Marc
- Manguel, Alberto
- Mann, Klaus
- Mann, Thomas
- Mansfield, Katherine
- Manzoni, Alessandro
- March, William
- Marchamalo, Jesús
- Marco Aurelio
- Marquesa Colombi
- Martín-Santos, Luis
- Martín Belmonte, Susana
- Marx, Karl
- Matheson, Richard
- Maugham, Robin
- Maugham, W Somerset
- Maupassant, Guy de
- Mauriac, François
- Max-Neef, Manfred
- Maxwell, William
- McCarthy, Cormac
- McCullers, Carson
- McNeill, John R.
- Melville. Herman
- Mendes, Catulle
- Méndez Ferrín, Xosé Luis
- Menéndez Salmón, Ricardo
- Merrick, Leonard
- Mestre, Javier
- Meyrink, Gustav
- Michaels, Leonard
- Micharvegas, Martín
- Michéa, Jean Claude
- Michel, Louise
- Miéville, China
- Millán, José Antonio
- Millhauser, Steven
- Mirbeau, Octave
- Mishima, Yukio
- Mitchell, David
- Miyazawa, Kenji
- Montaigne, Michel de
- Montes, Javier
- Monzó, Quim
- Moore, Brian
- Mora, Vicente Luis
- Morella, José
- Moreno, Javier
- Moreno, Víctor
- Moretti, Franco
- Mori, Ōgai
- Morozov, Evgeny
- Morris, Ivan
- Morris, William
- Morselli, Guido
- Moya, Antonio-Prometeo
- Moyano, Manuel
- Mujū, Ichien
- Müller, Herta
- Munro, Alice
- Muñoz, Miguel Ángel
- Muñoz Machado, Santiago
- Muñoz Rengel, Juan Jacinto
- Murakami, Haruki
- Murakami, Ryu
- Murdoch, Iris
- Murger, Henry
- Musil, Robert
