Brian Thomas Littrell (born February 20, 1975) is an American singer, songwriter and actor, best known as a member of the Backstreet Boys. He is also a Contemporary Christian music artist, and released the solo album, Welcome Home, in 2006. He is also the father of teen country singer Baylee Littrell.

On April 10, 2015, Littrell was inducted into the Kentucky Music Hall of Fame along with his cousin and bandmate Kevin Richardson.