Brian Allen may refer to:
- Brian Allen (wide receiver) (born 1962), gridiron football wide receiver for the Edmonton Eskimos of the Canadian Football League
- Brian Allen (linebacker) (born 1978), American football linebacker for the St. Louis Rams, Carolina Panthers and Washington Redskins
- Brian Allen (running back) (born 1980), American football running back for the Indianapolis Colts and San Francisco 49ers
- Brian Allen (cornerback) (born 1993), American football cornerback
- Brian Allen (offensive lineman) (born 1995), American football offensive lineman
- Brian Allen (musician), Canadian musician, songwriter and producer; co-wrote "What About Love", popularized by Heart
- Brian Allen (art historian) (born 1952), British art historian
See also