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| — C — |
| Moisés Cabello | Pat Cadigan | Alberto Cairo | Alberto Caliani | Italo Calvino |
| Catherine Crook de Camp | L. Sprague de Camp | Davide Camparsi | Eddie Campbell | Gabriella Campbell |
| John W. Campbell | Ramsey Campbell | Miguel Campion | David Campton | José Carlos Canalda |
| Matías Candeira | Jesús Cañadas | Jean Cap | Pablo Capana | Karel Capek |
| Truman Capote | Colin Capp | Pepe Carabel | T. P. Caravan | Adrián Carbayales |
| Orson Scott Card | Alfredo Cardona Peña | Alejandro Carneiro | André Carneiro | John Dickson Carr |
| Coral Carracedo | Sonia Carreras | Emmanuel Carrère | Cristina Carro | Lewis Carroll |
| Tim Carroll | Francis Carsac | Rae Carson | Angela Carter | Lin Carter |
| Cleve Cartmill | Ricard de la Casa | Alejandro Casona | Carlos Castán | Carlos Castaneda |
| Javier Castañeda de la Torre | Daphne Castell | Alberto Castellón Serrano | Juan Francisco Castillo | Adam-Troy Castro |
| Pablo Castro | Margarita Castro Arellano | Ignacio Castro Sierra | Sophie Cathala | Antonio Cebrián |
| Luis Cernuda | Alberto Cersosimo | Miguel de Cervantes | S. J. Chambers | Miguel Ángel Chamizo Jódar |
| A. Bertram Chandler | Raymond Chandler | Nathalie Charles-Henneberg | Leslie Charteris | Alexander Chee |
| Claude F. Cheinise | Anton Chejov | V. Chertijin | G. K. Chesterton | Preeti Chhibber |
| Ted Chiang | Nick de Chiario | Alberto Chimal | Ángel L. Chinea | Roshani Chokshi |
| Noam Chomsky | Agatha Christie | Winston Churchill | Ignacio Cid Hermoso | José Cid R. |
| Alberto Cifrián Miranda | Antonio Cillero | Erika Cipré | Tom Clancy | Leopoldo Alas Clarín |
| John D. Clark | P. Djèlí Clark | Arthur C. Clarke | Susannah Clarke | James Clavell |
| Hal Clement | Miguel Cobaleba | Manuel Cobo | William E. Cochrane | T. G. L. Cockcroft |
| Theodore R. Cogswell | Óscar Collazos | Carlo Collodi | Christian Comes | Dennis Conde |
| Juan Alberto Conde | Víctor Conde | Jeff Conner | Joseph Conrad | James Fenimore Cooper |
| James Fenimore Cooper | Louise Cooper | Alfred Coppel | Francis Ford Coppola | Antonella Corallo |
| Agustín A. Córdoba | Facundo Córdoba | Bernard Cornwell | Celia Corral-Vázquez | Hugo Correa |
| Julio Cortázar | Gerard P. Cortés | Agustín Cortés Gabiño | Ricardo Cortés Pape | Peter Costello |
| José Antonio Cotrina | Frank Cottrell-boyce | Elisabeth Counihan | Mary Elizabeth Counselman | Harold Courlander |
| Ignacio Covarrubias | Lee Brown Coye | Ángel Crespo | Michael Crichton | Ov. S. Crohmalniceanu |
| Richmal Crompton | Harry C. Crosby | James Cross | John Crowley | Luis Alberto de Cuenca |
| Alejo Cuervo | José Cuervo Álvarez | Javier Cuevas | Javier Cuevas Fernández | Ricardo Gabriel Curci |
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