The 1929 college football season saw a number of unbeaten and untied teams. Purdue, Tulane, Notre Dame and Pittsburgh all finished the regular season with wins over all their opponents. Notre Dame was recognized as national champion by two of three contemporary major selectors (the Dickinson and Dunkel Systems), while the third (Houlgate) named USC (10–2). Eight of nine retrospective selectors later also named Notre Dame and USC as No. 1 teams.