John Cowper Powys, (born October 8, 1872, Shirley, Derbyshire, England—died June 17, 1963, Blaenau Ffestiniog, Merioneth, Wales), Welsh novelist, essayist, and poet, known chiefly for his long panoramic novels, including Wolf Solent (1929), A Glastonbury Romance (1932), and Owen Glendower (1940). He was the brother of the authors T.F. Powys and Llewelyn Powys.
Educated at Sherborne School and the University of Cambridge, Powys was a university extension lecturer for about 40 years, 30 of them in the United States. His works include a striking Autobiography (1934) and books of essays, among them The Meaning of Culture (1930), The Pleasures of Literature (1938), and The Art of Growing Old (1943).