Medwyn may refer to: People John Hay Forbes, Lord Medwyn (1776–1854), British judge Medwyn Goodall (born 1961), English New Age composer and musician Medwyn Williams, 20th-21st century prize-winning Welsh gardener Other uses Medwyn, a character in The Chronicles of Prydain, by Lloyd Alexander See also North Medwyn River, Scotland South Medwyn River, Scotland Medwin, a surname