Juan Santos Fernández (July 22, 1847 - August 6, 1922) was a Cuban ophthalmologist, hygienist, and writer who was an early contributor to the medical field of ophthalmology in Cuba.

Juan Santos Fernández y Hernández was born on July 22, 1847 in Unión de Reyes, Matanzas Province, Spanish Cuba.

[7] Upon being named an honorary fellow by the American Association of Obstetricians and Gynecologists in 1892, he shared his research titled Corneal Opacities in Fetal Eyes.

[12] Santos Fernández was a member of the International Executive Committee at the first Pan-American Medical Congress in Washington, D.C., which took place in September 1893.

[13] In 1898, under the leadership of Santos Fernández, who was president of the Cuban Academy of Sciences, the institution formally lowered the Spanish flag following the Treaty of Paris.

[14] In March 1902, he made a formal request to Military Governor Leonard Wood on behalf of the academy, seeking necessary resources to address the tuberculosis crisis.

[15] On January 2, 1903, he was appointed by President Tomás Estrada Palma as an honorary member of the Superior Sanitary Board of the Island of Cuba.

[5] As the president of the Academy of Medical, Physical, and Natural Sciences of Havana, he served as the organization's delegate at the second Pan-American Scientific Congress in Washington, D.C., held on December 29, 1915.