Justino Fernández García (September 28, 1904 – December 12, 1972) was a researcher, historian and art critic who is particularly known for his work documenting and critiquing Mexican art of the 20th century. Fernandez studied and developed his career with the National Autonomous University of Mexico, as a protégé of Manuel Toussaint. Then the latter died in 1955, Fernandez took over as head of the Aesthetic Research Institute at UNAM, where he would develop the most of his writing and research until his death. Fernandez’s work was recognized by the Mexican government with the Premio Nacional de Ciencias y Artes in 1969.
Justino Fernandez Garcia was born on September 28, 1904 in Mexico City. He was grandson of Lic. Tomas Reyes Retana senator of Mexico during "El Porfiriato" and Loreto Najera Nader. His father was Justino Fernandez Mondoño, one of the delegates of the congress that created the 1857 Constitution of Mexico. His Father was originally from Mexico City. His mother was Sergia Garcia, originally from Valladolid, Spain. His sister was Leonor Nicaela Fernandez García, who maries José Ignacio de la Luz Federico Reyes-Retana y Najera a Colonel from the Mexican Army 
He began school at the Colegio Francés de la Perpetua, but in 1910, he was sent to the United States to avoid the Mexican Revolution. He returned to Mexico in 1923, at the time when the Mexican muralism movement was being established.
He did all of his undergraduate and graduate work at the National Autonomous University of Mexico (UNAM). As an undergrad, he studied under José Gaos and Juan David García Bacca, who introduced him to German philosophy and that of José Ortega y Gasset. He earned his master's degree in 1953 and his doctorate the following year with a thesis entitled “Coatlicue: estética de arte indígena antiguo” (Coatlicue, the aesthetics of ancient indigenous art) .
Fernandez died in Mexico City on December 12, 1972.
As a graduate student, he was a protégé of well-known researcher, historian and critic Manuel Toussaint, becoming his assistant when he founded the Aesthetic Research Institute at UNAM in 1936. The following year he began teaching summer classes at the university in art history.
Influenced by positivism, he is best known as a specialist in modern (20th century) Mexican art, in both its documentation and interpretation, relating it to art movements in the rest of the world. He particularly wrote about Mexican muralism, especially the work of José Clemente Orozco . However, he also did research work in both colonial period and 19th century Mexican art, writing an important work on the Altar of the Kings at the Mexico City Cathedral and studied the work of José María Velasco .
When Toussaint died in 1955, Fernandez became the interim director of the Aesthetic Research Institute with the position becoming permanent the following year. He remained as such until 1968. In 1969 UNAM named him a researcher emeritus. From 1970 to 1972, he served as member of the governing board of UNAM.
Other important associations included being a member of the Academia Mexicana de la Historia (as liaison to the Academia Real in Madrid) in 1965 and was a founding member of the Academia de Artes .
His highest award was the Premio Nacional de Ciencias y Artes from the Mexican government in 1969. Publications about the writer include: Homenaje a Justino Fernández en sus 60 años, Del arte. Homenaje a Justino Fernández and Bibliografía sobre arte colonial de Justino Fernández.
- Recuerdo de Tasco (1934)
- Morelia (1936).
- Pátzcuaro (1936).
- Uruapan (1936).
- El arte moderno en México (1937).
- La danza de los Concheros de San Miguel Allende (with Vicente T. Mendoza, 1941)
- Orozco: forma e idea (1942).
- Prometeo: ensayo sobre pintura contemporánea; Gaugin, Matisse, Rousseau, Cézanne, Braque, Picasso, Dada, Breton, Dalí, Rivera, Orozco (1945).
- Arte moderno y contemporáneo de México (1952).
- Coatlicue: estética del arte indígena antiguo (1954).
- El retablo de los reyes: estética del arte de la Nueva España (1959).
- El hombre: estética del arte moderno y contemporáneo (1962).
- Miguel Ángel: de su alma (1964).
- El arte del siglo XIX en México (1967).
- Pedro Coronel, pintor y escultor (1971).
- Estética del arte mexicano (1972).
- Arte mexicano: de sus orígenes a nuestros días (1958, republished in 1975) .
- Justino Fernández had no children but his sister had a single child called Colonel Justino Ignacio José Reyes-Retana Fernández, Colonel, Pilot and Hero who fought in The Mexican Air Force in Filipines as part of the "Escuadron 201" as an alied country to the United States of America during the Second World War. Justino Reyes-Retana Fernández got married to Susana Marquina y Barcena, daughter to one of the most important archeologists and anthropologists of Mexico, Architect Ignacio Marquina Barredo. They had three children: Justino Ignacio José Reyes-Retana Marquina, Sergio José Reyes-Retana Marquina in honor of Sergia Garcia (Justino Fernandez's Mother) and Susana Leonor Reyes-Retana Marquina. "Justino Fernández García 1904-1972" (PDF). Academia Mexicana de la Historia. Retrieved November 6, 2014.
- "1972: Muere el escritor, historiador y filósofo mexicano Justino Fernández". El Siglo de Torreón. Torreón, Mexico. December 12, 2013. Retrieved November 6, 2014.
- "Justino Fernández García". Secretaría de Educación Pública. Retrieved November 6, 2014.
- "Justino Fernández García". Academia Mexicana de Lengua. Retrieved November 6, 2014.
- "Justino Fernández". Enciclopedia de la Literatura en México. CONACULTA. Retrieved November 6, 2014.
- "Se cumplen 41 años de la muerte del mexicano Justino Fernández". NOTIMEX. Mexico City. December 11, 2013.