Brian Allen (born October 21, 1993) is an American professional football cornerback.

He was selected by the Pittsburgh Steelers of the National Football League (NFL) in the fifth round of the 2017 NFL draft, and has also spent time with the Seattle Seahawks, Buffalo Bills, San Francisco 49ers, Cincinnati Bengals, Cleveland Browns, Birmingham Stallions and New Orleans Saints.

Coming out of Utah, the majority of NFL draft experts and scouts projected Allen to be selected in the fifth or sixth round.

[7] He entered his first training camp competing with William Gay, Mike Hilton, Greg Ducre, Brandon Dixon, and Senquez Golson for a job to be a backup cornerback.

Allen was named the Steelers' fifth cornerback on their depth chart to begin the regular season, behind Artie Burns, Coty Sensabaugh, Hilton, and Gay.

[8] On September 17, 2017, Allen made his professional regular season debut during the Steelers' 26–9 victory over the Minnesota Vikings.

[26] Allen was signed to the Cleveland Browns' active roster off the Bengals' practice squad on January 4, 2021.