|
| — M — |
| Amin Maalouf | K. W. MacAnn | Bonnie MacBird | Gary D. MacClellan | John D MacDonald |
| Antonio Machado | Norman L. Macht | Enrique Machuca | Sergio Macías García | R. W. Mackelworth |
| Edward Mackin | Sarah MacLean | Frank MacShane | Tom Maddox | Elliot S. Maggin |
| Elisabeth Malartre | Massimiliano Malerba | George Malko | César Mallorquí | Roberto Malo |
| Thomas Malory | Barry N. Malzberg | David Mancera | Paco Mancera | Avro Manhattan |
| Laurence Manning | Marcos Manrique | Julio O. Manzo | José Ángel Mañas | Laura S. Maquilón |
| Santiago Marchese Flórez | Óscar de Marcos Escriña | Marco Antonio Marcos Fernández | Daniel Mares | Fernando Marías |
| Rafael Marín | Winston K. Marks | Louise Marley | Carlos Francisco Márquez Linares | Sergio Mars |
| Blanca Mart | Bertil Martensson | María Antonia Martí Escayol | Félix Martí Ibáñez | Carlos Martí Mezquita |
| George R. R. Martin | Miguel Martín Cruz | Javier Martín Lalanda | Luis Martín Santos | Santiago Martín Subirats |
| A. V. Martinet | Blanca Martínez | F. J. Martínez | Felicidad Martínez | Layla Martínez |
| Rodolfo Martínez | Sebastián Martínez | Ismael Martínez Biurrun | Carlos M. Martínez Bouquet | Carlos Martínez Córdoba |
| Ignacio Martínez de Pisón | Cristina Martínez García | José Martínez Moreno | Sergio Martínez Mourelle | Javier Martos |
| Groucho Marx | Luca Masali | John Masefield | David Mateo | Alfonso Mateo-Sagasta |
| Carlos Mateos López | Miguel Matesanz | Richard Matheson | David Matusek | Karl May |
| Iván Mayayo | Bruce McAllister | Paul J. McAuley | Sally McBride | Anne McCaffrey |
| Roy L. McCardell | Cormac McCarthy | Jack McDevitt | Anson McDonald | Ian McDonald |
| Ian McDowell | J. T. McIntosh | Will McIntosh | Vonda McIntyre | Dave McKean |
| Suzy McKee Charmas | Patricia A. McKillip | Dean McLaughlin | Alistair McLean | Ángel Medina |
| S. P. Meek | Ib Melchior | Paul Melko | Felipe Mellizo | Herman Melville |
| David Mendaña | Magín Méndez Sanguos | Plinio Apuleyo Mendoza | José Ángel Menéndez Lucas | Arturo Mengotti |
| Guera Mengotti | A. J. Merak | José María Merino | Judith Merril | Abraham Merrit |
| Carlos Mesa | J. G. Mesa | Nicholas Meyer | Gustav Meyrink | Melisa Michaels |
| Gilbert Michel | James A. Michener | Alejandro Mier | China Mieville | Hernán Migoya |
| John Milius | P. Schuyler Miller | Walter M. Miller Jr. | John Milton | Teresa P. Mira de Echeverría |
| Alberto Miralles | Iván Miras | Javier Miró | Margaret Mitchell | Laura J. Mixon |
| Manuel Miyares | Judith Moffet | Moisés | Manuel Moledo | Iván Molina Jiménez |
| Alfons Moliné | H. W. Mommers | Pedro Monje | Indro Montanelli | Amparo Montejano |
| Javier Montellano | José María Montells | Rosa Montero | Manuel Montes | Raúl Montes de Oca |
| Ricardo Montesinos | Ricardo Montesinos Valentín | Sandra Monteverde Ghuisolfi | Enrique Montiel de Arnaíz | Michael Moorcock |
| Catherine L. Moore | Raylyn Moore | Víctor Mora | Didac Morales | Carla C. Moreno |
| Carmen Moreno | Fernando Ángel Moreno | Joaquín Moreno | Manuel Moreno Bellosillo | Sergio Moreno Montes |
| Silvia Moreno-García | Chris Morgan | Richard Morgan | Nieves Mories | Grant Morrison |
| James Morrow | William Chambers Morrow | Pedro Antonio Moscatel Gómez | Sam Moskowitz | Erick J. Mota |
| Magdalena Moujan Otaño | Dennis Mourdoch | Manuel Moyano | Slawomir Mrozek | H. Warner Munn |
| Jorge Munnshe | Miguel Ángel Muñoz | Óscar Muñoz | Ramón Muñoz | Óscar Muñoz Caneiro |
| Julián Muñoz Carrasco | Vicente Muñoz Puelles | Juan Jacinto Muñoz Rengel | Pedro Muñoz Seca | Rafael Muñoz Vega |
| José Luis Muñoz Villar | Pat Murphy | William Murray |
