José Gabriel Cosio

José Gabriel Cosío Medina (Accha, March 18, 1887 – Lima, November 23, 1960) was a Peruvian scholar and professor. As a representative of the Peruvian government, he supervised the Yale Peruvian Expedition in 1912 led by Hiram Bingham.

He was part of the Cusco School, a generation of Cusco students who grouped around regionalism, indigenism, and decentralism and is considered the most brilliant generation produced in Cusco during the 20th century and the one that had the longest period of influence. His brother Félix Cosío Medina was also part of this group.