The 1921 Alabama Crimson Tide football team (variously "Alabama", "UA" or "Bama") represented the University of Alabama in the 1921 college football season. It was the Crimson Tide's 28th overall and 25th season as a member of the Southern Intercollegiate Athletic Association (SIAA). The team was led by head coach Xen C. Scott, in his third year, and played their home games at Denny Field in Tuscaloosa and at Rickwood Field in Birmingham, Alabama. They finished the season with a record of five wins, four losses and two ties (5–4–2 overall, 2–4–2 in the SIAA).