José Antonio Fernández-Muro was born in Madrid in 1920. In 1938 he moved with his family to Buenos Aires, where he took lessons in the studio of the Spanish painter Vicente Puig. In this city, he also gave his first exhibition, that took place in Witcomb Gallery in 1944. He currently lives in Madrid.
In 1952, Fernández-Muro formed the Modern Artists Group together with Tomás Maldonado, Enio Iommi, Sarah Grilo and Lidy Prati, among others; this group gave exhibitions in the Museu de Arte Moderna of Rio de Janeiro and in the Stedelijk Museum of Amsterdam before its dissolution in 1957. In 1960 he was awarded the J.S. Guggenheim Fellowship; two years later, he moved to the USA. Until his moving to Madrid in 1970, he exhibited his work in many museums, galleries and institutions of that country, such as the Institute of Contemporary Art (Washington DC), the Guggenheim Museum (New York) and the Museum of Modern Art of New York (MoMA).
His works can be seen in many important collections that belong to the following museums: the Museo Español de Arte Contemporáneo (Madrid), the Museo Nacional de Bellas Artes de Buenos Aires (MNBA), the Stedelijk Museum (Amsterdam), the Museum of Modern Art of New York (MoMA), the Solomon R. Guggenheim Museum (New York), the Museo de Bellas Artes of Caracas, the Museo de Arte Abstracto Español (Cuenca, Mexico), the ARCO Art Collection (Los Angeles), the Metropolitan Museum (Miami), and the Blanton Museum of Art (Austin, Texas).