Jack Allen may refer to:
Jack Allen (actor) (1907–1995), British actor Jack Allen (footballer, born 1889) (1889–1948), English footballer Jack Allen (footballer, born 1891) (1891–1971), English football player for Glossop, Manchester City, Southport and Crewe Alexandra Jack Allen (footballer, born 1903) (1903–1957), English football player Jack Allen (Australian footballer) (1887–1956), Australian rules footballer Jack Allen (Northern Ireland politician), Unionist in Northern Ireland John F. Allen (physicist) (1908–2001), physicist Jack Allen (Adventures in Odyssey), character in a Christian-themed comedy-drama Jack Allen (baseball) (1855–1915), baseball player Jack Allen (American football) (born 1992), American football player Jack Allen (Canadian politician) (1909–1992), reeve of East York in Toronto (1957–1960)
See also Jack Allan (disambiguation) John Allen (disambiguation) Allen (surname)