Football Opponents ▪ Mid-American
- 2021 opponents are listed in bold.
- STK is the current win, loss, or tie streak for Division I-A teams only.
- L10 is OU's record in the last 10 games against Division I-A teams only (minimum 10 games).
- As of 2021, OU has never played the following FBS schools (Power 5 in bold): Appalachian State, Buffalo, Central Florida, Central Michigan, Charlotte, Colorado State, Coastal Carolina, East Carolina, Eastern Michigan, Florida International, Georgia Southern, Georgia State, Georgia Tech, Idaho, Kent State, Louisiana-Lafayette, Marshall, Massachusetts, Memphis, Miami (OH), Michigan State, Mississippi State, Nevada, Northern Illinois, Ohio, Old Dominion, Purdue, Rutgers, San Jose State, South Alabama, South Carolina, Southern Miss, Texas State, Texas-San Antonio, Toledo, Troy, UNLV, Western Kentucky, Western Michigan.