Allyn is both a given name and a surname. Notable people with the name include:
Given name
Allyn Abbott Young (1876–1929), American economist
Allyn Ann McLerie (b. 1926), American dancer
Allyn Condon (b. 1974), English sprinter
Allyn Cox (1896–1982), American painter
Allyn Joslyn (1901–1981), American stage, film and television actor
Allyn McKeen (1905–1978), American college football coach
Leigh-Allyn Baker (b. 1972), American actress, director and voice artist
Francis Allyn Olmsted (1819–1844), American author
Allyn Rose (b. 1988) is an American beauty pageant titleholder and model
J. Allyn Rosser (b. 1957), American poet
Wayne Allyn Root (b. 1961), American businessperson
Surname
David Allyn (b. 1969), American essayist
Jerri Allyn (b. 1954), American artist
Louis B. Allyn (1874–1940), American chemistry professor
