Augusto Belin (January 14, 1854 – September 25, 1936) was an Argentine writer and diplomat, son of printer Julio Belin and Ana Faustina Sarmiento, daughter of Domingo Faustino Sarmiento.
Upon returning home to Argentina, he was employed by the National Senate as translator of Wilson Book Review Digest in 1877, charged with managing the Biblioteca Nacional de Maestros where he created an inventory, finding 8,733 copies in the archive and 39,152 in the deposit.
The following year he became an editor of El Nacional at that time under the direction of Domingo Faustino Sarmiento.
He also took the position of the director of the Biblioteca Pública de San Juan and Minister of Intervention in Catamarca in 1893.
He acted as Argentine Consul to various countries: the Netherlands, Paraguay, Belgium, Italy and France from 1906 to 1926.