Allyn is both a given name and a surname. Notable people with the name include:
Given nameAllyn Abbott Young (1876–1929), American economistAllyn Ann McLerie (b. 1926), American dancerAllyn Condon (b. 1974), English sprinterAllyn Cox (1896–1982), American painterAllyn Joslyn (1901–1981), American stage, film and television actorAllyn McKeen (1905–1978), American college football coachLeigh-Allyn Baker (b. 1972), American actress, director and voice artistFrancis Allyn Olmsted (1819–1844), American authorAllyn Rose (b. 1988) is an American beauty pageant titleholder and modelJ. Allyn Rosser (b. 1957), American poetWayne Allyn Root (b. 1961), American businesspersonSurnameDavid Allyn (b. 1969), American essayistJerri Allyn (b. 1954), American artistLouis B. Allyn (1874–1940), American chemistry professor
