Walter Allen (1911–1995) was an English literary critic and novelist.

Walter Allen or Allan may also refer to:

Walter R. Allen (fl. 1990s–2020s), American sociologist Jack Allen (footballer, born 1889) (1889–1948), English footballer Walter Allan (1927–2003), Scottish cricketer and surgeon Watty Allan (Walter Lennie Allan, 1868–1943), Scottish footballer

See also Wal Allan, or Allen, Australian rugby league player