The 1984 All-Big Ten Conference football team consists of American football players chosen as All-Big Ten Conference players for the 1984 Big Ten Conference football season. The organizations selecting All-Big Ten teams in 1987 included the Associated Press (AP) and the United Press International (UPI). Other individual award winners included Wisconsin guard Jeff Dellenbach as the Big Ten Offensive Lineman of the Year, Iowa tackle Paul Hufford as the Big Ten Defensive Lineman of the Year, and Purdue's Leon Burtnett as the Big Ten Coach of the Year.