G. F. Stout (1860-1944) was a leading English philosopher and psychologist who included Bertrand Russell and G. E. Moore among his students. He studied psychology at Cambridge University under James Ward and opposed the prevalent theory of associationism. G. F. Stout held positions as a fellow at St. John’s College Cambridge (1884-96), a lecturer in Comparative Psychology at the University of Aberdeen (1896) and a reader in mental philosophy at Oxford (1898-1902) before serving as professor of logic and metaphysics at St. Andrews, Fife until his retirement in 1936.

G. F. Stout was president of the Aristotelian Society from 1899 to 1904.