The 1971 Army Cadets football team represented the United States Military Academy in the 1971 college football season. In their sixth year under head coach Tom Cahill, the Cadets compiled a 6–4 record but were outscored by their opponents by a combined total of 206 to 146. In the annual Army–Navy Game, the Cadets defeated the Midshipmen by a 24 to 23 score. No Army players were selected as first-team players on the 1971 College Football All-America Team.