The 1908 Army Cadets football team represented the United States Military Academy in the 1908 college football season. In their first season under head coach Harry Nelly, the Cadets compiled a 6–1–2 record, shut out five of their nine opponents (including a scoreless tie with Princeton), and outscored all opponents by a combined total of 87 to 21. The team's only loss was to Yale. In the annual Army–Navy Game, the Cadets defeated the Midshipmen by a 6 to 4 score.