Barry Allen may refer to:
- Flash (Barry Allen), the second fictional character named The Flash, a superhero in the DC Comics universe
- Barry Allen (Arrowverse), the Arrowverse version of the character
- Barry Allen (DC Extended Universe), the version of the character in the DC Extended Universe film series
- Barry Allan (footballer) (born 1942), former Australian rules footballer who played with North Melbourne
- Barry Allen (musician) (1946–2020), Canadian rock musician and record producer/engineer
- Barry Allen, one of four young African American men who became victims of Bernhard Goetz's 1984 New York City Subway shooting
- Barry Allen Ackerley (1934–2011), American businessman
This disambiguation page lists articles about people with the same name.
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