The 1973 Big Ten Conference football season was the 78th season of college football played by the member schools of the Big Ten Conference and was a part of the 1973 NCAA Division I football season. The 1973 Ohio State Buckeyes football team, under head coach Woody Hayes, and the 1973 Michigan Wolverines football team, under head coach Bo Schembechler, compiled identical 10–0–1 records and tied for the Big Ten championship. Ohio State was ranked No. 2 in the final AP Poll, and Michigan was ranked No. 6. Ohio State led the conference in both scoring offense (37.5 points per game) and scoring defense (5.8 points allowed per game).