Tags: National Collegiate Athletic Association Team Season.
The 1921 Cornell Big Red football team represented Cornell University in the 1921 college football season. They finished with a 8–0 record and were retroactively named national champions by the Helms Athletic Foundation Houlgate System National Championship Foundation and Parke H. Davis. They outscored their opponents 392 to 21 including a 110–0 win over Western Reserve on October 15.