Félix Martí-Ibáñez (December 25, 1911 – May 24, 1972) was a physician, psychiatrist, author, and publisher, who was born in Spain, emigrated to the United States in 1939 following the Spanish Civil War when he was exiled during the Franco Era in Spain, and became an American citizen. In Spain he had served as a minister for the Second Spanish Republic. When he emigrated he settled in Manhattan.
He is the author of numerous books, articles, and essays. He founded, edited, and published the highly regarded magazine, MD, through the publishing house he founded in Manhattan, MD Publications, Inc., through which he also had published several medical journals during the early 1950s and through which he published many of the books he authored. The layout of the magazine was distinctive for its uninterrupted content and the secondary position given to advertising and, he sometimes implemented novel presentation of information, such as images without captions. Martí-Ibáñez was a polymath with interests in fine art, ancient history, anthropology, architecture, biology, botany, chemistry, civilizations, culture, diplomacy, geography, graphic design, history, human relationships, literature, medicine, music, mythology, natural history, philosophy, psychiatry, psychology, public health, religion, sociology, urban planning, and zoology.
In 1957 he began the publication of MD as its editor-in-chief and continued its publication until his death in 1972. Some of his works written for MD that were published in continuing series on topics such as art, culture, history, medicine, and philosophy became compiled and published later as books.
He also published a similar magazine in Canada, MD of Canada, and another, MD en Español, which was read throughout the Spanish-speaking world. He was a frequent contributor to professional journals in his broad fields of interest, as an author, editor, or co-editor.
In his obituary, the New York Times stated that Martí-Ibáñez also held the chair of the history of medicine at New York Medical College of Flower and Fifth Avenue Hospitals. On a medallion commemorating the founding of MD, he is described as a humanist.